Diseases of corn

Corn and Corn Improvement: Third Edition

Volumn , Issue , 2015, Pages 687-766

  Smith, D R ^a   White, D G ^b  

^a PFIZER INC   (United States)

^b UNIVERSITY OF ILLINOIS AT URBANA CHAMPAIGN   (United States)

Author keywords

Abiotic agents; Biotic agents; Corn diseases; Crop losses; Disease control; Disease development; Noninfectious entities; Plant pathologist

Indexed keywords

EID: 33745148795     PISSN: None     EISSN: None     Source Type: Book    
DOI: 10.2134/agronmonogr18.3ed.c12     Document Type: Chapter

References (476)

1. Association of Official Seed Analysts. 1983. Seed vigor testing handbook. Assoc. Off. Seed Anal. Handb. Con tr. 32: 1-88.
2. Al-Sohaily, I.A., C.J. Mankin, and G. Semeniuk. 1963a. Pathogenicity to sorghum and corn ofa hybrid between the head smut fungi on each of these crops. Phytopathology 53:360-361.
3. Al-Sohaily, I.A., C.J. Mankin, and G. Semeniuk. 1963b. Physiologic specialization of Sphacelotheca reiliana to sorghum and corn. Phytopathology 53:723-726.
4. Alstatt, G.E. 1945. A new corn disease in the Rio Grande Valley. Plant Dis. Rep. 29:533-534.
5. Anderson, H.W., E.W. Nehring, and W.R. Wichser. 1975. Aflatoxin contamination of corn in the field. J. Agric. Food Chem. 23:775-782.
6. Ark, P.L. 1940. Bacterial stalk rot of field corn caused by Phytomonas lapsa. Phytopathology 30: 1 (Abstr.).
7. Ark, P.L. Persistence of Phytomonas lapsa on seed of field corn. Plant Dis. Rep. 25:202.
8. Arny, D.C., E.B. Smalley, A.J. Ullstrup, G.L. Worf, and R.W. Ahrens. 1971. Eyespot of maize, a disease new to North America. Phytopathology 61:54-57.
9. Ark, P.L., G.L. Worf, R.W. Ahrens, and M.F. Lindsey. 1970. Yellow leaf blight of maize in Wisconsin: Its history and the reactions of inbreds and crosses to the inciting fungus (Phyllosticta sp.). Plant Dis. Rep. 54:281-285.
10. Ayers, J.E., J.S. Boyle, and D.T. Gordon. 1978. The occurrence of maize dwarf and maize dwarf mosaic viruses in Pennsylvania in 1977. Plant Dis. Rep. 62:820-821.
11. Ayers, J.E., R.R. Nelson, Carol Koons, and G.L. Schiefele. 1970. Reactions of various maize inbreds and single crosses in normal and male-sterile cytoplasm to the yellow leaf blight organism, (Phyllosticta sp.). Plant Dis. Rep. 54:277-280.
12. Baldwin, J.C., and K.R. Barker. 1970. Host suitability of selected hybrids, varieties, and inbreds of corn to populations of Meloidogyne spp. J. Nematol. 2:345-350.
13. Bancroft, J.B., A.J. Ullstrup, M. Messieha, C.E. Bracker, and T.E. Snazelle. 1966. Some biological and physical properties ofa Midwestern isolate of maize dwarf mosaic virus. Phytopathology 56:474-478.
14. Bebawi, F.F., R.E. Eplee, and R.S. Norris. 1984. Effect ofage, size, and weight ofwitchweed seeds on host/parasite relations. Phytopathology 74:1074-1078.
15. Beckman, P.M., and G.A. Payne. 1982. External growth, penetration, and development of Cercospora zeae-maydis in corn leaves. Phytopathology 72:810-815.
16. Beckman, P.M., and G.A. Payne. 1983. Cultural techniques and conditions influencing growth and sporulation of Cercospora zeae-maydis and lesion development in corn. Phytopathology 73:286-289.
17. Bekele, E., and D.R. Sumner. 1983. Epidemiology of southern corn leafblight in continuous corn culture. Plant Dis. 67:738-742.
18. Bergquist, R.R. 1985. Inheritance estimates of resistance in maize (Zea mays) to gray leaf spot (Cercospora zeae-maydis). Phytopathology 75:1310 (Abstr.).
19. Bergquist, R.R., and O.R. Masias. 1974. Physiologic specialization in Trichometasphaeria turcica f. sp. zeae and T. turcica f. sp. sorghi in Hawaii. Phytopathology 64:645-649.
20. Biddle, J.A., E.J. Braun, and D.C. McGee. 1985. Epidemiology and seed transmission of Goss's wilt in com. p. 962. In Phytopathology abstracts. Am. Phytopathological Soc., St. Paul.
21. Blanco, M.H., M.G. Johnson, T.R. Colbert, and M.S. Zuber. 1977. An inoculation technique for Stewart's wilt disease of com. Plant Dis. Rep. 61 :413-416.
22. Blanco, M.H., M.S. Zuber, J.R. Wallin, D.V. Loonan, and G.F. Krause. 1979. Host resistance to Stewart's disease in maize. Phytopathology 69:849-853.
23. Bockelman, D.L., L.E. Claflin, and J.K. Uyemoto. 1982. Host range and seed-transmission studies of maize chlorotic mottle virus in grasses and com. Plant Dis. 66:216-218.
24. Boewe, G.H. 1936. The relation of ear rot prevalence in Illinois com fields to ear coverage by husks. State oflll. Nat. Hist. Surv. Div. Contrib. Sec. of Applied Bot. Plant Pathol. Pub. 273.
25. Bojanowski, J. 1969. Studies of inheritance of reaction to common smut in com. Theor. Appl. Genet. 39:32-42.
26. Boosalis, M.G., D.R. Sumner, and A.S. Rao. 1967. Overwintering of conidia of Helminthosporium turcicum on com residues and in the soil in Nebraska. Phytopathology 57:990-996.
27. Boothroyd, C.W. 1971. Transmission of Helminthosporium maydis race T by infected com seed. Phytopathology 61:747-748.
28. Boothroyd, C.W., and H.W. Israel. 1980. A new mosaic disease of corn. Plant Dis. 64:218-219.
29. Bradfute, O.E., R.E. Gingery, D.T. Gordon, and L.R. Nault. 1972a. Tissue ultrastructure, sedimentation and leafhopper transmission of a virus associated with a maize dwarfing disease. J. Cell. Biol. 55:25a.
30. Bradfute, O.E., R. Louie, and J.K. Knoke. 1972b. Isometric virus-like particles in maize with stunt symptoms. Phytopathology 62:748 (Abstr.).
31. Bradfute, O.E., L.R. Nault, D.C. Robertson, and R.W. Toler. 1977. Maize bushy stunt-a disease associated with a non-helical mycoplasma-like organism. Proc. Am. Phytopathol. Soc. 4: 171 (Abstr.).
32. Bradfute, O.E., and D.C. Robertson. 1974. Identification of the Mississippi com stunt agent by electron microscopy. Proc. Am. Phytopathol. Soc. 1:35-36 (Abstr.).
33. Bradfute, O.E., J.H. Tsai, and D.T. Gordon. 1981. Com stunt spiroplasma and viruses associated with a maize disease epidemic in southern Florida. Plant. Dis. 65:837-841.
34. Broyles, J.W. 1962. Penetration of meristematic tissues of com by Physoderma maydis. Phytopathology 52:1013-1016.
35. Burnette, D.C., and D.G. White. 1985. Inheritance of resistance to Bipolaris maydis race 0 in crosses derived from nine resistant inbred lines of maize. Phytopathology 75:1195-1200.
36. Bums, E.E., and M.C. Shurtleff. 1973. Observations of Physoderma maydis in Illinois: Effects of tillage practices in field com. Plant Dis. Rep. 57:630-633.
37. Caldwell, R. W., and E.G. Smalley. 1981. Effect of host genotype on zearalenone contamination of com. Pythopathology 71:211 (Abstr.).
38. Caldwell, R. W., J. Tuite, and W.W. Carlton. 1981. Pathogenicity of Penicillia to com ears. Phytopathology 71:175-180.
39. Cameron, J.W. 1975. Inheritance in sweet com for resistance to acute ozone injury. J. Am. Soc. Hortic. Sci. 100:577-579.
40. Cammack, R.H. 1954. Observations in Puccina polysora Underwood in West Africa. West Afr. Maize Rust Res. Unit Annu. Rep. 1:16-31.
41. Carson, M.L. 1980. Sources and inheritance of resistance to anthracnose stalk rot of com. Ph.D. thesis. Univ. of Illinois, Urbana-Champaign (Diss. Abstr. 81-08459).
42. Carson, M.L. 1985. First report of eyespot (Kabetiella zeae) of com in South Dakota. Plant Dis. 69:117.
43. Carson, M.L., and A.L. Hooker. 1981a. Inheritance of resistance to anthracnose leaf blight in five inbred lines of corn. Phytopathology 71 :488-491.
44. Carson, M.L., and A.L. Hooker. 1981 b. Inheritance of resistance to stalk rot of com caused by Colletotrichum graminicola. Phytopathology 71: 1190-1196.
45. Castillo, J., and T.T. Herbert. 1974. Nueva enfermedad virosa afectando al maiz en al Peru. Fitopatologia 9:79-84.
46. Castillo-Loayza, J. 1976. Maize virus and virus-like diseases in Peru. p. 40-44. In L.E. Williams et al. (ed.) Proc. Maize Virus Dis. Colloq. Workshop. 16-19 August. Ohio Agric. Res. Dev. Ctr., Wooster.
47. Castor, L.L., J.E. Ayers, A.A. MacNab, and R.A. Krause. 1975. Computerized forecasting system for Stewart's bacterial disease on corn. Plant Dis. Rep. 59:533-536.
48. Castor, L.L., J.E. Ayers, and R.R. Nelson. 1977. Controlled-environment studies on the epidemiology of yellow leaf blight of corn. Phytopathology 67:85-90.
49. Chang, C.-M., A.L. Hooker, and S.M. Lim. 1977. An inoculation technique for determining Stewart's bacterial leaf blight reaction in corn. Plant Dis. Rep. 61:1077-1079.
50. Chen, T.A., and C.H. Liao. 1975. Corn stunt spiroplasma: Isolation, cultivation, and proof of pathogenicity. Science (Washington, DC) 188: 1015-1017.
51. Chilton, S.P. 1940. Delayed reduction of the diploid nucleus in the promycelia of Ustilago zeae. Phytopathology 30:622-623.
52. Christensen, C.M. (ed.) 1974. Storage of cereal grains and their products, Vol. 2. Am. Assoc. of Cereal Chemists, St. Paul.
53. Christensen, C.M. 1980. Needed: Research on storage molds in grains, seeds, and their products. Plant Dis. 64: 1067-1070.
54. Christensen, J.J. 1931. Studies on the genetics of Ustilago zeae. Phytopathol. Z. 4:129-188.
55. Christensen, J.J. 1963. Corn smut caused by Ustilago maydis. Monogr. 2. Am. Phytopathol. Soc., St. Paul.
56. Christensen, J.J., and R.D. Wilcoxson. 1966. Stalk rot of corn. Monogr. 3. Phytopathol. Soc., St. Paul.
57. Chupp, C. 1953. A monograph of the fungus genus Cercospora. Ronald Press, Ithaca, NY.
58. Committee on Standardization of Common Names for Plant Diseases. 1985. Common names for plant disease. Plant Dis. 69:649-676.
59. Comstock, J.C., C.A. Martinson, and A.H. Epstein. 1974. Fungicidal control of southern corn leaf blight on Texas male-sterile corn. Plant Dis. Rep. 58:104-107.
60. Comstock, J.C., C.A. Martinson, and B.G. Gengenbach. 1973. Host specificity ofa toxin from Phyllosticta maydis for Texas cytoplasmically male-sterile maize. Phytopathology 63: 1357-1361.
61. Cook, C.E., P. Wichard, M.E. Wall, G.H. Egley, P. Coggan, R.A. Luban, and A.T. McPhall. 1972. Germination stimulants II. The structure of strigol-a potent seed germination stimulant for witch weed (Striga lutea Lour.). J. Am. Chem. Soc. 94:6 198-6 199.
62. Couture, R.M., D.G. Routley, and G.M. Dunn. 1971. Role of cyclic hydroxamic acids in monogenic resistance of maize to Helminthosporium turcicum. Physiol. Plant Pathol. I :515-521.
63. Craig, J. 1980. Comparative reactions of corn inbreds to oospore and conidial inoculum of Peronosclerospora sorghi. Phytopathology 70:3 13-3 15.
64. Craig, J. 1982. Identification of sorghum downy mildew resistance in corn by leaf reaction to conidial inoculum. Plant Dis. Rep. 72:351-352.
65. Craig, J., and L.A. Daniel-Kalio. 1968. Chlorotic lesion resistance to Helminthosporium maydis in maize. Plant Dis. Rep. 52: 134-136.
66. Craig, J., and J.M. Fajemisin. 1969. Inheritance of chlorotic lesion resistance to Helminthosporium maydis in maize. Plant Dis. Rep. 53:742-743.
67. Craig, J., and R.A. Frederiksen. 1980. Pathotypes of Peronosclerospora sorghi. Plant Dis. 64:778-779.
68. Crosier, W.F., and S.W. Braverman. 1971. Helminthosporium maydis in seeds of Minnesota-grown field corn. Phytopathology 61:427-428.
69. Cugini, G., and G.B. Traverso. 1902. La Sclerospora macrospora Sacc. parassita della Zea mays L. Stn. Sper. Agrar. Ital. 35:46-49.
70. Cullen, D., R.W. Caldwell, and E.B. Smalley. 1983. Susceptibility of maize to Gibberella zeae ear rot: Relationship of host genotype, pathogen virulence and zearalenone contamination. Plant Dis. 67:89-91.
71. Dale, J.L. 1963. Corn anthracnose. Plant Dis. Rep. 47:245-249.
72. Damsteegt, V.D. 1976. A naturally occurring corn virus epiphytotic. Plant Dis. Rep. 60:858-861.
73. Dange, S.R.S. 1976. Sorghum downy mildew (Sclerospora sorghi) of maize in Rajasthan, India. Kasetsart J. 10:121-127.
74. Davis, R.E. 1973. Occurrence of a spiroplasma in corn stunt-infected plants in Mexico. Plant Dis. Rep. 57:333-337.
75. Davis, R.E. 1976. Spiroplasma: Role in the diagnosis of corn stunt disease. p. 92-98. In L.E. Williams et al. (ed.) Proc. Maize Virus Dis. Colloq. Workshop. 16-19 August. Ohio Agric. Res. Dev. Ctr., Wooster.
76. Davis, R.E., J.H. Tsai, and R.E. McCoy. 1984. Isolation of the corn stunt spiroplasma from maize in Florida. Plant Dis. 68:600-604.
77. Davis, R.E., and J.F. Worley. 1973. Spiroplasma: Motile, helical micro-organisms associated with corn stunt disease. Phytopathology 63:403-408.
78. De Leon, C. 1984. Maize diseases, a guide for field identification. 3rd ed. CIMMYT, Mexico City.
79. Dodd, J.L. 1977. A photosynthetic stress-translocation balance concept of corn stalk rot. p. 122-130. In H.D. Loden and D. Wilkinson (ed.) Proc. Annu. Corn Sorghum Res. Conf., 32, Chicago. 6-8 Dec. ASTA, Washington, DC.
80. Dodd, J.L. 1980a. The role of plant stresses in development of corn stalk rots. Plant Dis. 64:533-537.
81. Dodd, J.L. 1980b. Grain sink size and predisposition of Zea mays to stalk rot. Phytopathology 70:534-535.
82. Doupnick, B., and M.B. Boosalis. 1980. Ecofallow-a reduced tillage system-and plant diseases. Plant Dis. 64:31-35.
83. Drechsler, C. 1925. Leaf spot of maize caused by Ophiobolus heterostrophus n.sp. the ascigerous stage of a Helminthosporium exhibiting bipolar germination. J. Agric. Res. 31:701-726.
84. Duran, R. 1970. Hosts and distribution of Mexican smut fungi. Mycologia 62: 1094-1105.
85. Duvick, D.N. 1972. Potential usefulness of new cytoplasmic male steriles and sterility systems. p. 192-201. In H.D. Loden and D. Wilkinson (ed.) Proc. Annu. Corn Sorghum Res. Conf., 27, Chicago. 12-14 December. ASTA, Washington, DC.
86. Dye, D.W. 1969. A taxonomic study of the genus Erwinia IV. "Atypical" Erwinias. N. Z. J. Sci. 12:833-839.
87. deZoeten, G.A., D.C. Arny, C.R. Grau, S.M. Saad, and G. Gaard. 1980. Properties of the nucleoprotein associated with maize white line virus in Wisconsin. Phytopathology 70:1019-1022.
88. Eddins, A.H. 1933. Infection of corn plants by Physoderma zeae-maydis Shaw. J. Agric. Res. 46:241-253.
89. Egley, G.H., and J.E. Dale. 1970. Ethylene, 2-chloroethylphosphonic acid and witchweed germination. Weed Sci. 18:586-589.
90. Elliott, C., and F. W. Poos. 1934. Overwintering of Aplanobacter stewarti. Science N.S. (Washington, DC) 80:289-290.
91. Eplee, R.E. 1981. Striga's status as a plant parasite in the United States. Plant Dis. 65:951-954.
92. Eplee, R.E., and M.A. Langston. 1970. Paraquat efficacy and application in witchweed (Striga lutea) control. Proc. South. Weed Sci. Soc. 23: 127.
93. Fajemisin, J.M., and A.L. Hooker. 1974. Predisposition to Diplodia stalk rot in corn affected by three Helminthosporium leaf blights. Phytopathology 64:1496-1499.
94. Fenwick, H.S., and W.R. Simpson. 1967. Suppression of corn head smut by infurrow application of pentachloronitrobenzene. Plant Dis. Rep. 51 :626-628.
95. Fenwick, H.S., and W.R. Simpson. 1969. Evidence of postseedling infection by Sphacelotheca reiliana. Phytopathology 59:1026 (Abstr.).
96. Findley, W.R., E.J. Dollinger, R. Louie, and J.K. Knoke. 1973. Locating genes for maize dwarf mosaic resistance by means of chromosomal translocations in corn (Zea mays L.). Crop Sci. 13:608-611.
97. Flor, H.H. 1942. Inheritance of pathogenicity in Melamspora lini. Phytopathology 32:653-669.
98. Flor, H.H. 1955. Host-parasite interaction in flax rust-its genetics and other implications. Phytopathology 45:680-685.
99. Ford, R.E., and M. Tosic. 1972. New hosts of maize dwarf mosaic virus and sugarcane mosaic virus and a comparative host range study of viruses infecting corn. Phytopathol. z. 75:315-348.
100. Forgey, W.M., M.H. Blanco, L.L. Darrah, and M.S. Zuber. 1982. Prediction of Stewart's wilt disease in single and three-way crosses of maize. Plant Dis. 66: 1159-1162.
101. Forgey, W.M., M.H. Blanco, and W.Q. Loegering. 1978. Differences in pathological capabilities and host specificity of Co/letotrichum graminicola on Zea mays. Plant Dis. Rep. 62:573-576.
102. Forster, R.L., R.L. Stoltz, H.S. Fenwick, and W.R. Simpson. 1980. Maize dwarf mosaic virus in Idaho. Plant Dis. 64:410-411.
103. Foster, J.H., and R.A. Frederiksen. 1977. Symptoms of head smut in maize seedlings and evaluation of hybrids and inbreds. Texas Agric. Exp. Stn. Rep. PR3432.
104. Frederiksen, R.A. 1977. Head smuts of corn and sorghum. p. 89-105. In H.D. Loden and D. Wilkinson (ed.) Proc Annu. Corn Sorghum Res. Conf., 32, Chicago. 6-8 December. ASTA, Washington, DC.
105. Frederiksen, R.A. 1980. Sorghum downy mildew in the United States: Overview and outlook. Plant Dis. 64:903-908.
106. Frederiksen, R.A. R.W. Berry, and J.H. Foster. 1976. Head smut of maize in Texas. Plant Dis. Rep. 60:6 10-611.
107. Frederiksen, R.A. and A.J. Bockholt. 1969. Sclerospora sorghi, a pathogen of corn in Texas. Plant Dis. Rep. 53:566-569.
108. Frederiksen, R.A. A.J. Bockholt, L. Reyes, and A.J. Ullstrup. 1971. Reaction of selected midwestern corn inbred lines to Sclerospora sorghi. Plant Dis. Rep. 55:202-203.
109. Frederiksen, R.A. and G. Odvody. 1979. Chemical control of sorghum downy mildew. Sorghum Newsl. 22:129
110. Frederiksen, R.A. and B.L. Renfro. 1977. Global status of maize downy mildew. Annu. Rev. Phytopathol. 15:249-277.
111. Frederiksen, R.A. and A.J. Ullstrup. 1975. Sorghum downy mildew in the United States. Trop. Agric. Res. Ser. 8:39-43.
112. Frutchey, C.W. 1936. A study of Stewart's disease of sweet corn caused by Phytomonas stewarti. Michigan Agric. Exp. Stn. Tech. Bull. 152.
113. Fuentes, S. 1963. Resistance to head smut in Mexican races of corn. Phytopathology 53:24 (Abstr.).
114. Futrell, M.C. 1975. Puccina polysora epidemics on maize associated with cropping practice and genetic homogeneity. Phytopathology 65: 1040-1042.
115. Futrell, M.C. and G.E. Scott. 1971. Overwintering and early season development of Helminthosporium maydis in Mississippi. Plant Dis. Rep. 55:954-956.
116. Gala, A.A., F.M.E. Omar, A.A. Ismail, and F.A. El-Seir. 1985. Genetic analysis of resistance to late wilt disease in single crosses of maize. Egypt. J. Genet. Cytol. 14:309.
117. Garber, R.J., and M.M. Hoover. 1928. The relation of smut infection to yield in maize. J. Am. Soc. Agron. 20:735-741.
118. Gardner, C.O., and M.L. Schuster. 1973. Genetic studies on the susceptibility to bacterial leaf freckles and wilt, Corynebacterium nebraskense. Maize Genet. Coop. News Lett. 47:155-157.
119. Gates, L.F., and C.G. Mortimore. 1969. Three diseases of corn (Zea mays) new in Ontario: Crazy top, a Phyllosticta leaf spot, and eyespot. Can. Plant Dis. Surv. 49: 128-131.
120. Gelaw, B. (ed.). 1986. To feed ourselves: A proceedings of the first eastern, central and southern Africa regional maize workshop. CIMMYT, Mexico City.
121. Gendloff, E.H., E.C. Rossman, W.L. Casale, T.G. Isleib, and L.P. Hart. 1986. Components of resistance to Fusarium ear rot in field com. Phytopathology 76:684-688.
122. Gevers, H.O. 1975. A new major gene for resistance to Helminthosporium turcicum leaf blight of maize. Plant Dis. Rep. 59:296-299.
123. Giebel, J. 1982. Mechanism of resistance to plant nematodes. Annu. Rev. Phytopathol. 20:257-279.
124. Gingery, R.E., and R. Louie. 1985. A satellitelike virus particle associated with maize white line mosaic virus. Phytopathology 75:870-874.
125. Gitaitis, R.D., R.E. Stall, and J.O. Strandberg. 1978. Dissemination and survival of Psuedomonas alboprecipitans ascertained by disease distribution. Phytopathology 68:227-231.
126. Gordon, D.T. 1976. Maize virus diseases in the United States. p. 45-48. In L.E. Williams et al. (ed.) Proc. Maize Virus Dis. Colloq. Workshop. 16-19 August. Ohio Agric. Res. Dev. Ctr., Wooster.
127. Gordon, D.T., O.E. Bradfute, R.E. Gingery, J.K. Knoke, and L.R. Nault. 1978. Maize virus disease complexes in the United States: Real and potential disease problems. p. 102-133. In H.D. Loden and D. Wilkinson (ed.) Proc. Annu. Corn Sorghum Res. Conf., 33, Chicago. 12-14 December. ASTA, Washington, DC.
128. Gordon, D.T., W.R. Findley, J.K. Knoke, R. Louie, LR. Nault, O.E. Bradfute, E.J. Dollinger, and R.E. Gingery. 1974. Distinguishing symptoms and latest research findings on corn virus diseases in the United States. p. 153-173. In H.D. Loden and D. Wilkinson (ed.) Proc. Ann. Corn Sorghum Res. Conf., 29, Chicago. 10-12 December. ASTA, Washington, DC.
129. Gordon, D.T., and L.R. Nault. 1977. Involvement of maize chlorotic dwarf virus and other agents in stunting diseases of Zea mays in the United States. Phytopathology 67:27-36.
130. Gordon, D.T., L.R. Nault, N.H. Gordon, and S.E. Heady. 1985. Serological detection of corn stunt spiroplasma and maize rayado fino virus in field-collected Dalbulus spp. from Mexico. Plant Dis. 69: 108-111.
131. Granados, R.R. 1969. Electron microscopy of plants and insect vectors infected with corn stunt disease agent. Contrib. Boyce Thompson Inst. 24: 173-187.
132. Grau, C.R., G.A. deZoeten, D.C. Arny, S.M. Saad, and G. Gaard. 1981. Maize white line mosaic-A new disease of corn in Wisconsin. Phytopathology 71:220 (Abstr.).
133. Graves, C., T. McCutehen, and D. West. 1980. Corn hybrids evaluated for resistance to downy mildew (crazy top) diseases. Tenn. Farm Home Sci. 113:24-25.
134. Gregory, L.V., J.E. Ayers, and R.R. Nelson. 1984. Effect of host genotype on estimating relative parasitic fitness among populations of Helminthosporium carbonum race 3. Phytopathology 74: 1024-1026.
135. Grogan, C.O., E.F. Eastin, and R.D. Palmer. 1963. Inheritance of susceptibility of a line of maize to simazine and atrazine. Crop Sci. 3:451.
136. Gudauskas, R.T., D.H. Teem, W. To, and T.L. Whatley. 1971. Overwintering of Helminthosporium maydis in Alabama. Plant Dis. Rep. 55:947-948.
137. Haenseler, C.M. 1937. Correlation between winter temperature and incidence of sweet corn wilt in New Jersey. Plant Dis. Rep. 21:298-301.
138. Halisky, P.M. 1962. Prevalence and pathogenicity of Sphacelotheca reiliana causing head smut of field corn in California. Phytopathology 52: 199-202.
139. Hamid, A.H., J.E. Ayres, and R.R. Hill, Jr. 1982a. The inheritance of resistance in corn to Cochliobolus carbonum race 3. Phytopathology 72:1173-1177.
140. Hamid, A.H., J.E. Ayres, and R.R. Hill, Jr. 1982b. Host X isolate interactions in corn inbreds inoculated with Cochliobolus carbon um race 3. Phytopathology 72: 1169-1173.
141. Hammerschmidt, R., and R.L. Nicholson. 1977. Resistance of maize to anthracnose: Effect of light intensity on lesion development. Phytopathology 67:247-250.
142. Hart, L.P., E. Gendloff, and E.C. Rossman. 1984. Effect of corn genotype on ear rot infection by Gibberella zeae. Plant Dis. 68:296-298.
143. Harvey, P.H., D.L. Thompson, and T.T. Herbert. 1955. Reaction of inbred lines of corn to brown spot. Plant Dis. Rep. 39:973-976.
144. Headrick, J.M., and J.K. Pataky. 1986. Effects of night temperature and mist period on infection of sweet corn by Puccinia sorghi. Plant Dis. 70:950-953.
145. Heather, J.B., R.S.D. Mittal, and C.F. Sih. 1974. The total synthesis of distrigol. J. Am. Chem. Soc. 96:1976-1977.
146. Hebert, T.T., and A. Kelman. 1958. Factors influencing the germination ofresting sporangia of Physoderma maydis. Phytopathology 48:102-106.
147. Heck, W.W. 1968. Factors influencing expression of oxidant damage to plants. Annu. Rev. Phytopathol. 6: 165-168.
148. Heichel, G.H., D.C. Sands, and J.B. King. 1977. Seasonal patterns and reduction by carbofuran of Stewart's bacterial wilt of sweet corn. Plant Dis. Rep. 61:149-153.
149. Hill, J.H., C.A. Martinson, and W.A. Russell. 1974. Seed transmission of maize dwarf mosaic and wheat streak mosaic viruses in maize and response of inbred lines. Crop. Sci. 14:232-235.
150. Hilty, J.W., C.H. Hadden, and F.T. Garden. 1979. Response of maize hybrids and inbred lines to gray leaf spot disease and the effects on yield in Tennessee. Plant Dis. Rep. 63:515-518.
151. Hilu, H.M., and A.L. Hooker. 1964. Host-pathogen relationship of Helminthosporium turcicum in resistance and susceptible corn seedlings. Phytopathology 54:570-575.
152. Hollier, C.A., and S.B. King. 1985a. Effect of dew period and temperature on infection of seedling maize plants by Puccinia polysora. Plant Dis. 69:219-220.
153. Hollier, C.A., and S.B. King. 1985b. Effects of temperature and relative humidity on germinability and infectivity of Puccinia polysora uredospores. Plant Dis. 69:937-939.
154. Hooker, A.L. 1961. A new type of resistance in corn to Helminthosporium turcicum. Plant Dis. Rep. 45:780-781.
155. Hooker, A.L. 1963. Inheritance of chlorotic-lesion resistance to Helminthosporium turcicum in seedling corn. Crop Sci. 660-662.
156. Hooker, A.L. 1974. Selection for stalk rot resistance in corn and its effect on grain yield. Genetika (Zemun, Yugosl.) 6:27-32.
157. Hooker, A.L. 1975. Helminthosporium turcicum as a pathogen of corn. Rep. Tottori Mycol. Inst. (Jpn.) 12:115-125.
158. Hooker, A.L. 1977a. A plant pathologist's view of germplasm evaluation and utilization. Crop Sci. 17:689-694.
159. Hooker, A.L. 1977b. A second major gene locus in corn for chlorotic-lesion resistance to Helminthosporium turcicum. Crop Sci. 17: 132-135.
160. Hooker, A.L., and M.P. Britton. 1962. The effects of stalk rot on corn yields in Illinois. Plant Dis. Rep. 46:9-13.
161. Hooker, A.L., H.M. Hilu, D.R. Wilkinson, and C.G. Van Dyke. 1964. Additional sources of chlorotic-lesion resistance to Helminthosporium turcicum in corn. Plant Dis. Rep. 48:777-780.
162. Hooker, A.L., and K.M.S. Saxena. 1971. Genetics of disease resistance in plants. Annu. Rev. Genet. 5:407-424.
163. Hooker, A.L., D.R. Smith, S.M. Lim, and J.B. Beckett. 1970a. Reaction of corn seedlings with malesterile cytoplasm to Helminthosporium maydis. Plant Dis. Rep. 54:708-712.
164. Hooker, A.L., D.R. Smith, S.M. Lim, and M.D. Musson. 1970b. Physiological races of Helminthosporium maydis and disease resistance. Plant Dis. Rep. 54: 1109-1110.
165. Hooker, A.L., and D.G. White. 1976. Prevalence of corn stalk rot fungi in Illinois. Plant Dis. Rep. 60: 1032-1034.
166. Hoppe, P.E. 1942. Fusarium ear rot in sweet corn. Plant Dis. Rep. 26:458.
167. Hoppe, P.E., and A. Kelman. 1969. Bacterial top and stalk rot disease of corn in Wisconsin. Plant Dis. Rep. 53:66-70.
168. Hoppe, P.E., and J.T. Middleton. 1950. Pathogenicity and occurrence in Wisconsin soil of Pythium species which cause seedling diseases in corn. Phytopathology 40: 13.
169. Horsfall, J.G. 1975. The fire brigade stops a raging corn epidemic. p. 105-114. In USDA Yearbook. U.S. Gov. Print. Office, Washington, DC.
170. Hughes, G.R., and A.L. Hooker. 1971. Gene action conditioning resistance to northern corn leaf blight in maize. Crop Sci. 11: 180-183.
171. Hyre, R.A. 1943. New records and occurrences of plant diseases. Plant Dis. Rep. 27:553-554.
172. Ltzerott, D. 1938. On the germination and growth of Ustilago zeae with special reference to infection. Phytopathol. Z. I: 155-180.
173. Ivanoff, S.S. 1936. Resistance to bacterial wilt of open-pollinated varieties of sweet, dent and flint corn. J. Agric. Res. 53:917-926.
174. Ivanoff, S.S., and A.J. Riker. 1936. Resistance to bacterial wilt of inbred strains and crosses of sweet corn. J. Agric. Res. 53:937-954.
175. Ivanoff, S.S., A.J. Riker., and H.A. Dettwiler. 1938. Studies on cultural characteristics, physiology and pathogenicity of strain types of Phytomonas stewarti. J. Bacteriol. 35:235-253.
176. Janson, B.F., and C.W. Ellett. 1963. A new corn disease in Ohio. Plant Dis. Rep. 47:1107-1108.
177. Jenkins, M.T., and A.L. Robert. 1959. Evaluating the breeding potential of inbred lines of corn resistant to the leaf blight caused by Helminthosporium turcicum. Agron. J. 51:93-96.
178. Jenkins, M.T., and A.L. Robert. 1961. Further genetic studies of resistance to Helminthosporium turcicum Pass. in maize by means of chromosomal translocations. Crop Sci. 1 :450-455.
179. Jenkins, M.T., A.L. Robert. and W.R. Findley, Jr. 1952. Inheritance of resistance to Helminthosporium leaf blight in populations of F3 progenies. Agron. J. 44:438-442.
180. Jenns, A.E., and K.J. Leonard. 1985. Effect of illuminance on the resistance of inbred lines of corn to isolates of Colletotrichum graminicola. Phytopathology 75:281-286.
181. Jensen, S.G. 1985. Laboratory transmission of maize chlorotic mottle virus by three species of corn rootworms. Plant Dis. 69:864-868.
182. Johann, H., J.R. Holbert, and J .G. Dickson. 1931. Further studies on Penicillium injury to corn. J. Agric. Res. 43:757-790.
183. Johnson, A.G., L. Cash, and W.A. Gardner. 1929. Preliminary report on a bacterial disease of corn. Phytopathology 19:81-82 (Abstr.).
184. Johnson, A.G., A.L. Robert, and L. Cash. 1945. Further studies on bacterial leaf blight and stalk rot of corn. Phytopathology 35:486-487 (Abstr.).
185. Johnson, A.G., A.L. Robert, and L. Cash. 1949. Bacterial leaf blight and stalk rot of corn. J. Agric. Res. 78:719-732.
186. Johnson, A. W. 1975. Resistance of sweet corn cul ti vars to plant-parasitic nematodes. Plant Dis. Rep. 59:373-376.
187. Johnson, G.R. 1971. Analysis of genetic resistance to maize dwarf mosaic disease. Crop Sci. 11:23-24.
188. Johnson, G.R. 1976. Analysis of nuclear genetic resistance in maize to race T of southern com leaf blight. Crop Sci. 16:340-343.
189. Jones, B.L., J.C. Leeper, and R.A. Frederiksen. 1972. Sclerospora sorghi in com: Its location in carpellate flowers and mature seeds. Phytopathology 62:817-819.
190. Jones, D.F. 1918. Segregation of susceptibility to parasitism in maize. Am. J. Bot. 5:295-300.
191. Jordan, E.G., J.M. Perkins, R.A. Schall, and W.L. Pedersen. 1983. Occurrence of race 2 of Exserohilum turcicum on com in the central and eastern United States. Plant Dis. 67: 1163-1165.
192. Josephson, L.M., and B. Naidu. 1971. Reaction in diallel crosses of com inbreds (Zea mays L.) to maize dwarf mosaic virus. Crop Sci. 11:664-667.
193. Jugenheimer, R.W. 1976. Com improvement, seed production, and uses. John Wiley and Sons, New York.
194. Kappelman, A.J., Jr., and D.L. Tompson. 1966. Inheritance of resistance to Diplodia stalk rot in com. Crop. Sci. 6:288-290.
195. Keller, N.P., G.C. Bergstrom, and R.E. Carruthers. 1986. Potential yield reductions in maize associated with an anthracnose European com borer pest complex in New York. Phytopathology 76:586-589.
196. Kelman, A., L.H. Person, and T.T. Herbert. 1957. A bacterial stalk rot of irrigated com in North Carolina. Plant Dis. Rep. 41:798-802.
197. Kendrick, J.B. 1926. Holcus bacterial spot of Zea mays and Holcus species. Iowa Agric. Exp. Stn. Bull. 100:301-334.
198. Kim, S.K. 1974. Quantitative genetics of Puccinia sorghi resistance and husk number in Zea mays. Ph.D. diss. Univ. of Hawaii, Honolulu.
199. Kim, S.K., and J.L. Brewbaker. 1976. Sources of general resistance to Puccinia sorghi on maize in Hawaii. Plant Dis. Rep. 60:551-555.
200. Kim, S.K., and J.L. Brewbaker. 1977. Inheritance of general resistance in maize to Puccinia sorghi Schw. Crop Sci. 17:456-461.
201. Kingsland, G., and O.W. Barnett. 1985. Effect of two viruses on components of yield of com in South Carolina. Phytopathology 7 5: 1299 (Abstr. ).
202. Kingsland, G.C. 1963. Cercospora leaf blight of com: A case history of a local epiphytotic in South Carolina. Plant Dis. Rep. 47:724-725.
203. Kisiel, M., K. Deubert, and B.M. Zuckerman. 1969. The effect of Tylenchus agricola and Tylenchorhynchus claytoni on root rot of com caused by Fusarium roseum and Pythium ultimum. Phytopathology 59: 1387-1390.
204. Koehler, B. 1939. Crazy top of com. Phytopathology 29:817-820.
205. Koehler, B. 1951. Husk coverage and ear declination in relation to com ear rots. Phytopathology 41:22 (Abstr.).
206. Koehler, B. 1955. Correlation between resistance to Stewart's leaf blight and northern leaf blight in com. Plant Dis. Rep. 39:164-165.
207. Koehler, B. 1959. Com ear rots in Illinois. Illinois Agric. Exp. Stn. Bull. 639.
208. Koehler, B. 1960. Cornstalk rots in Illinois. Illinois Agric. Exp. Stn. Bull. 659.
209. Koehler, B., and C.M. Woodworth. 1938. Com seedling virescences caused by Aspergi/lus flavus and A. tamarii. Phytopathology 28:811-823.
210. Kommedahl, T., D.S. Lang, and K.L. Blanchard. 1971. Detection of kernels infected with Helminthosporium maydis in commercial samples of com produced in 1970. Plant Dis. Rep. 55:726-729.
211. Krantz, B.A., and S.W. Melsted. 1964. Nutrient deficiencies in com, sorghum, and small grains. p. 25-57. In H.B. Sprague (ed.) Hunger signs in crops. David McKay Co., New York.
212. Kruger, W. 1970. Wurzel-und stammfaule bei mais. (In German.) Phytopathol. Z. 68:334-345.
213. Kuhn, C.W., M.D. Jellum, 1975. Effect of carbonfuran treatment on com yield, maize chlorotic dwarf and maize dwarf mosaic virus diseases, and leafhopper populations. Phytopathology 65: 1017-1020.
214. Kunkel, LO. 1946. Incubation period of com stunt virus in the leafhopper Baidu/us maidis (DeL. and W.). Am. J. Bot. 33:830-831 (Abstr.).
215. Lal, B.B., and B.P. Chakravarti. 1977. Root and collar inoculation and control of brown spot of maize by post-infection spray and soil application of systemic fungicides. Plant Dis. Rep. 61:334-336.
216. Lallmahomed, G.M., and J. Craig. 1968. Races of Puccinia polysora in Nigeria. Plant Dis. Rep. 52:136-138.
217. Langston, M.A., R.E. Eplee, and T.J. English. 1976. Witchweed control in corn with oxyflurorfen , RH-29 15. Proc. South. Weed Sci. Soc. 29: 163.
218. Latterell, F.M., and A.E. Rossi. 1983a. Gray leaf spot of corn: A disease on the move. Plant Dis. Rep. 67:842-847.
219. Latterell, F.M., and A.E. Rossi. 1974. Evidence that Cercospora zeae-maydis is the causal agent of gray leaf spot of corn. Proc. Am. Phytopathol. Soc. I :40 (Abstr.).
220. Latterell, F.M., and A.E. Rossi. 1983b. Stenocarpella macrospora ( = Diplodia macrospora) and S. maydis ( = D. maydis) compared as pathogens of corn. Plant Dis. 67:725-729.
221. Leach, C.M., R.A. Fullerton, and K. Young. 1977. Northern leaf blight of maize in New Zealand: Relationship of Drechslera turcica airspora to factors influencing sporulation, conidium development, and chlamydospore formation. Phytopathology 67:629-636.
222. Leonard, K.J. 1977. Races of Bipolaris maydis in the southeastern U.S. from 1974-1976. Plant Dis. Rep. 61:914-915.
223. Lim, S.M. 1975a. Diallel analysis for reaction of eight corn inbreds to Helminthosporium maydis race T. Phytopathology 65: 10-15.
224. Lim, S.M. 1975b. Heterotic effects of resistance in maize to Helminthosporium maydis race 0. Phytopathology 65:1117-1120.
225. Lim, S.M., and A.L. Hooker. 1971. Southern corn leaf blight: Genetic control of pathogenicity and toxin production in race T and race O of Cochliobolus heterostrophus. Genetics 69:115-117.
226. Lim, S.M., and A.L. Hooker. 1976. Estimates of combining ability for resistance to Helminthosporium maydis race O in a maize population. Maydica 21:121-128.
227. Lim, S.M., A.L. Hooker., and J.D. Paxton. 1970. Isolation of phytoalexins from corn with monogenic resistance to Helminthosporium turcicum. Phytopathology 60:1071-1075.
228. Lim, S.M., A.L. Hooker., and D.R. Smith. 1971. Use of Helminthosporium maydis race T pathotoxin to determine disease reaction of germinating corn seed. Agron. J. 63:712-713.
229. Lim, S.M., J.G. Kinsey, and A.L. Hooker. 1974. Inheritance of virulence in Helminthosporium turcicum to monogenic resistant corn. Phytopathology 64: 1150-1151.
230. Lim, S.M., J .D. Paxton, and A.L. Hooker. 1968. Phytoalexin production in corn resistant to Helminthosporium turcicum Phytopathology 58:720-721.
231. Lim, S.M., and D.G. White. 1978. Estimates of heterosis and combining ability for resistance of maize to Colletotrichum graminicola. Phytopathology 68: 1336-1342.
232. Lindstrom, E.W. 1938. Genetic investigations of bacterial wilt resistance in corn. p. 46-47. In Report on agricultural research. Iowa Agric. Exp. Stn. Rep. (1937-38).
233. Lipps, P.E. 1982. Survival of Colletotrichum graminicola in infested corn residues in Ohio. Plant Dis. 67: 102-104.
234. Lipps, P.E. 1985. Influence of inoculum from buried and surface corn residues on the incidence of corn anthracnose. Phytopathology 75: 1212-1216.
235. Littrell, R.H., and D.R. Sumner. 1971. Overwintering of Helminthosporium maydis in Georgia. Plant Dis. Rep. 55:951-953.
236. Locci, R., and J.R. Locci. 1972. Possible means of differentiating, on malt agar, between physiologic races of"T" and "O" of Helminthosporium maydis. Riv. Patol. Veg. 8(4):232-238.
237. Lockwood, J.L., and L.E. Williams. 1957. Inoculation and rating methods for bacterial wilt of sweet corn. Phytopathology 47:83-87.
238. Loesch, P.J., and M.S. Zuber. 1972. Inheritance of resistance to maize dwarf mosaic virus. Crop Sci. 12:350-352.
239. Lommel, S.A. 1985. Partial characterization of maize chlorotic mottle virus. Phytopathology 75: 1292 (Abstr.).
240. Louie, R., D.T. Gordon, J.K. Knoke, R.E. Gingery, O.E. Bradfute, and P.E. Lipps. 1982. Maize white line mosaic virus in Ohio. Plant Dis. 66: 167-170.
241. Louie, R., D.T. Gordon, and P.E. Lipps. 1981. Transmission of maize white line mosaic virus. Phytopathology 71:1116 (Abstr.).
242. Louie, R., D.T. Gordon, L.V. Madden, and J.K. Knoke. 1983a. Symptomless infection and incidence of maize white line mosaic. Plant Dis. 67:371-373.
243. Louie, R., and J .K. Knoke. 1975. Strains of maize dwarf mosaic virus. Plant Dis. Rep. 59:518-522.
244. Louie, R., J .K. Knoke., and D.T. Gordon. 1974. Epiphytotics of maize dwarf mosaic and maize chlorotic dwarf diseases in Ohio. Phytopathology 64: 1455-1459.
245. Louie, R., J .K. Knoke., D.T. Gordon., and R.E. Gingery. 1983b. Maize white line mosaic and maize subtle mosaic viruses. p. 139-140. In D.T. Gordon et al. (ed.) Proc. Int. Maize Virus Dis. Colloq. Workshop. 2-6 Aug. 1982. Ohio Agric. Res. Dev. Ctr., Wooster.
246. Luttrell, E.S. 1958. The perfect stage of H elminthosporium turcicum. Phytopathology 48:281-287.
247. Lynch, K.V., L.V. Edgington, and L.V. Busch. 1980. Head smut, a new disease of corn in Ontario. Can. J. Plant Pathol. 2: 176-178.
248. Mace, M.E., and J.A. Veech. 1973. Inhibition of Helminthosporium turcicum spore germination by leaf diffusates from northern leaf blight-susceptible or resistant-corn. Phytopathology 63: 1393-1394.
249. MacKenzie, D.R., C.C. Wernham, and R.E. Ford. 1966. Differences in maize dwarf mosaic virus isolates of the northeastern United States. Plant Dis. Rep. 50:814-818.
250. Mack, H.J., J.R. Bagett, and P.A. Koepsell. 1980. Cultural practices affected corn smut. Oregon Veg. Dig. 29:1-2.
251. Madden, L.V., and L.R. Nault. 1983. Differential pathogenicity of corn stunting mollicutes to leafhoppers vectors in Dalbulus and Baldulus species. Phytopathology 73: 1608-1614.
252. Mains, E.B. 1934. Host specialization of Puccinia sorghi. Phytopathology 24:405-411.
253. Marie, A., Z. Markovic, P. Drezgic, and D. Varga. 1969. Agricultural practice and the epiphytotic of corn smut [Ustilago maydis (DC) Corda] in Vojvodina during 1968. Savrem. Poljoprivr. 17:385-394.
254. Markham, P.G., R. Townsend, K. Plaskitt, and P. Saglio. 1977. Transmission of corn stunt to dicotyledonous plants. Plant Dis. Rep. 61:342-345.
255. Martens, J.W., and D.C. Arny. 1966. The effect of potassium fertilization on the incidence of smut in a susceptible corn inbred. Plant Dis. Rep. 50: 12-13.
256. Martin, P.R., C.O. Gardner, A.G. Calub, and M.L. Schuster. 1975. Inheritance of susceptibility and tolerance to leaf freckles and wilt ( Corynebacterium nebraskense) of corn. Maize Genet. Coop. News Lett. 49:137-138.
257. Matyac, C.A., and T. Kommedahl. 1985a. Occurrence of chlorotic spots on corn seedlings infected with Sphacelotheca reiliana and their use in evaluation of head smut resistance. Plant Dis. 69:251-254.
258. Matyac, C.A., and T. Kommedahl. 1985b. Factors affecting the development of head smut caused by Sphacelotheca reiliana on corn. Phytopathology 75:577-581.
259. McDaniel, L.L., and D.T. Gordon. 1985. Identification of a new strain of maize dwarf mosaic virus. Plant Dis. 69:602-607.
260. McDonald, M.B., Jr. 1975. A review and evaluation of seed vigor tests. Proc. Assoc. Off. Seed Anal. 65:109-139.
261. McFeeley, J.C. 1971. Comparison of isolates causing yellow leaf-blight of corn in Ohio. Plant Dis. Rep. 55:1064-1068.
262. McNew, G.L. 1938. The relation of nitrogen nutrition to virulence in Phytomonas stewarti. Phytopathology 28:769-787.
263. Melhus, I.W., F.H. VanHaltern, and D.E. Bliss. 1928. A study of Sclerospora graminicola on Setaria viridis and Zea mays. p. 297-338. In Iowa Agric. Exp. Stn. Res. Bull. 1111.
264. Mercado, A.C., Jr., and R.M. Lantican. 1961. The susceptibility of cytoplasmic male sterile lines of corn to Helminthosporium maydis Nisik. & Miy. Philipp. Agric. 45:235-243.
265. Messiaen, C.M., R. Lafon, and P. Malot. 1959. Necroses de racines, pourritures de tiges, et verse parasitaire du mais. Ann. Epiphyt. 4:441-474.
266. Michaelson, M.E. 1957. Factors affecting development of stalk rot of corn caused by Diplodia zeae and Gibberella zeae. Phytopathology 47:499-503.
267. Michaelson, M.E., and J.J. Christensen. 1953. Reduction in yield of corn due to stalk rot. Phytopathology 43:479 (Abstr.).
268. Middleton, J.T. 1943. The taxonomy, host range and geographical distribution of the genus Pythium. Mem. Torrey Bot. Club. 20:1-171.
269. Mikel, M.A., C.J. D'Arcy, A.M. Rhodes, and R.E. Ford. 1981. Yield loss in sweet corn correlated with time of inoculation with maize dwarf mosaic virus. Plant Dis. 65:902-904.
270. Mikel, M.A., C.J. D'Arcy, A.M. Rhodes, and R.E. Ford. 1984. Genetics ofresistance of two dent corn inbreds to maize dwarf mosaic virus and transfer of resistance into sweet corn. Phytopathology 74:467-473.
271. Miller, R.J., and D.E. Koeppe. 1971. Southern corn leaf blight: Susceptible and resistant mitochondria. Science (Washington, DC) 173:67-69.
272. Mortvedt, J.J., P.M. Giordano, and W.L. Lindsay. (ed.). 1972. Micronutrients in agriculture. SSSA, Madison, WI.
273. Mukunya, D.M., and C. W. Boothroyd. 1973. Mycosphaerella zeae-maydis sp. n., the sexual stage of Phyllosticta maydis. Phytopathology 63:529-532.
274. Mukunya, D.M., C. W. Boothroyd, and C.O. Grogan. 1975. Genetic nature of resistance in corn to yellow leaf blight. Cro Sci. 15:495-499.
275. Mulder, J.L., and P. Holliday. 1974. Cercospora sorghi C.M.I. Descriptions of pathogenic fungi and bacteria. 4 19. The Eastern Press, London.
276. Naidu, B., and L.M. Josephson. 1976. Genetic analysis ofresistance to the corn virus disease complex. Crop Sci. 16:167-172.
277. Narita, T., and Y. Hiratsuka. 1959. Studies on Kabatiella zeae n. sp., the causal fungus of a new leaf spot disease of corn. Ann. Phytopathol. Soc. Jpn. 24:147-153.
278. National Academy of Sciences. 1972. Genetic vulnerability of major crops. NAS, Washington, DC.
279. Nattrass, R.M. 1953. Occurrence of Puccinia polysora in east Africa. Nature (London) 171:527.
280. Nault, L.R. 1980. Maize bushy stunt and corn stunt: A comparison of disease symptoms, pathogen host ranges, and vectors. Phytopathology 70:659-662.
281. Nault, L.R., D. T. Gordon, V.D. Damsteegt, and H.H. Iltis. 1982. Response of annual and perennial teosintes (Zea) to six maize viruses. Plant Dis. 66:61-62.
282. Nault, L.R., and J.K. Knoke. 1981. Maize vectors. p. 77-84. In D.T. Gordon et al. (ed.) Virus and viruslike diseases of maize in the United States. Ohio Agric. Res. Ctr., South. Coop. Serv. Bull. 247.
283. Nault, L.R., W.E. Styer, M.E. Coffey, D.T. Gordon, L.S. Negi, and C.L. Niblett. 1978. Transmission of maize chlorotic mottle virus by chrysomelid beetles. Phytopathology 68: 1071-1074.
284. Nault, L.R., W.E. Styer, J.K. Knoke, and H.N. Pitre. 1973. Semipersistent transmission of leafhopper-borne maize chlorotic dwarf virus. J. Econ. Entomol. 66:1271-1273.
285. Nelson, D.W. 1963. The relationship between soil fertility and the incidence of Diplodia stalk rot and northern corn leaf blight in Zea mays. M.S. thesis. Univ. of Illinois, Urbana.
286. Nelson, O.E., and A.J. Ullstrup. 1964. Resistance to leaf spot in maize: Genetic control of resistance to race I of Helminthosporium carbonum Ul I. J. Hered. 55:195-199.
287. Nelson, R.R. 1957a. Heterothallism in Helminthosporium maydis. Phytopathology 4 7: 191-192.
288. Nelson, R.R. 1957b. Resistance in corn to Meloidogyne incognita. Phytopathology 47:25-26 (Abstr.).
289. Nelson, R.R. 1959. Cochliobolus carbonum, the perfect stage of Helminthosporium carbonum. Phytopathology 49:807-810.
290. Nelson, R.R., J.E. Ayers, and J.B. Beckett. 1971. Reactions of various corn inbreds in normal and different male-sterile cytoplasms to the yellow leaf blight organism (Phyllosticta sp.). Plant Dis. Rep. 55:401-403.
291. Nelson, R.R., M. Blanco, S. Dalmacio, and B.S. Moore. 1973. A new race of Helminthosporium carbonum on corn. Plant Dis. Rep. 57:822-823.
292. Neuffer, M.G., and O.H. Calvert. 1975. Dominant disease lesion mimics in maize. J. Hered. 66:265-270.
293. Neuffer, M.G., L. Jones, and M.S. Zuber. 1968. The mutants of maize. CSSA, Madison, WI.
294. Niblett, C.L., and L.E. Claflin. 1978. Corn lethal necrosis-a new virus disease in Kansas. Plant. Dis. Rep. 62: 15-19.
295. Nicholson, R.L., L.F. Bauman, and H.F. Warren. 1976. Association of Fusarium moniliforme with brown midrib maize. Plant Dis. Rep. 60:908-910.
296. Nicholson, R.L., and W.B.C. Moraes. 1980. Survival of Col/etotrichum graminicola: Importance of the spore matrix. Phytopathology 70:255-261.
297. Nicholson, R.L., and H.L. Warren. 1976. Criteria for evaluation of resistance to maize anthrancose. Phytopathology 66:86-90.
298. Nicholson, R.L., and H.L. Warren. 1981. The issue of races of Col/etotrichum graminicola pathogenic to corn. Plant Dis. 65: 143-145.
299. Norton, D.C. 1978. Ecology of plant-parasitic nematodes. John Wiley and Sons, New York.
300. Norton, J.B.S. 1895. Ustilago reiliana on corn. Bot. Gaz. (Chicago) 5:463.
301. Nusbaum, C.J., and H. Ferris. 1973. The role of cropping systems in nematode population management. Ann. Rev. Phytopathol. 11:423-440.
302. Ooka, J.J., and T. Kommedahl. 1977. Kernels infected with Fusarium moniliforme in corn cultivars with opaque-2 endosperm or male-sterile cytoplasm. Plant Dis. Rep. 61:161-165.
303. Palmer, L.T., and T. Kommedahl. 1969. Root-infecting Fusarium species in relation to rootworm infestations in corn. Phytopathology 59:1613-1617.
304. Palmer, L.T., D. MacDonald, and T. Kommedahl. 1967. The ecological relationship of Fusarium moniliforme to Pratylenchus scribneri in seedling blight of corn. Phytopathology 57:825 (Abstr.).
305. Parker, D.T., and W.C. Burrows. 1959. Root and stalk rot in corn as affected by fertilizer and tillage treatment. Agron. J. 51:414-417.
306. Parker, G.B. 1980. Inheritance of resistance in dent corn to wheat streak mosaic virus and Erwinia stewartii. Ph.D. diss. Univ. of Illinois, Urbana. (Diss. Abstr. 81-08622).
307. Pataky, J.K. 1985. Relationships among reactions of sweet corn hybrids to Goss's wilt, Stewart's bacterial wilt, and northern corn leaf blight. Plant Dis. 69:845-848.
308. Pate, J.R., and P.H. Harvey. 1954. Studies on the inheritance of resistance in corn to Helminthosporium maydis leaf spot. Agron. J. 46:442-445.
309. Patterson, E. 1973. Procedures for use of genie male sterility in production of commercial hybrid maize. U.S. Patent 3 710 511. Date issued: 16 January.
310. Pavgi, M.S., and A.L. Flangas. 1959. Occurrence of Southern corn rust in Wisconsin. Plant. Dis. Rep. 43: 1239-1240.
311. Payak, M.M., and R.C. Sharma. 1986. Vertical banded blight-an unusual Marasmiellus disease of maize. Curr. Sci. 55: II 35-1137.
312. Payne, G.A., D.K. Cassel, and C.R. Adkins. 1986. Reduction of aflatoxin contamination in corn by irrigation and tillage. Phytopathology 76:679-684.
313. Pepper, E.H. 1967. Stewart's bacterial wilt of corn. Am. Phytopathol. Soc. Monogr. 4. Am. Phytopathological Soc., St. Paul.
314. Perkins, J.M., and A.L. Hooker. 1979. The effects of anthracnose stalk rot on corn yields in Illinois. Plant Dis. Rep. 63:26-30.
315. Pfund, J.H., and C.W. Crum. 1977. Inheritance of tolerance to eradicane in maize. p. 66. In Agronomy abstract. ASA, Madison, WI.
316. Pirone, T.P., O.E. Bradfute, P.H. Freytag, M.C.Y. Lung, and C.G. Poneleit. 1972. Viruslike particles associated with a leafhopper transmitted disease of corn in Kentucky. Plant. Dis Rep. 56:652-656.
317. Podleckis, E.V., C.R. Curtis, and H.E. Heggestad. 1984. Peroxidase enzyme markers for ozone sensitivity in sweet corn. Phytopathology 74:572-577.
318. Politis, D.J., and H. Wheeler. 1972. The perfect stage of Colletotrichum graminicola. Plant Dis. Rep. 56:1026-1027.
319. Potter, A.A. 1914. Head smut of sorghum and maize. J. Agric. Res. 2:339-371.
320. Pringle, R.B., and R.P. Scheffer. 1967. Isolation of the host-specific toxin and a related substance with nonspecific toxicity from Helminthosporium carbonum. Phytopathology 57:1169-1172.
321. Puhalla, J.E. 1969. The formation of diploids of Ustilago maydis on agar media. Phytopathology 59: 1 771-1772.
322. Rao, B.A., A.F. Schmitthenner, R. Caldwell, and C. W. Ellett. 1978. Prevalence and virulence of Pythium species associated with root rot of corn in poorly drained soil. Phytopathology 68:1557-1563.
323. Raymundo, A.D., and A.L. Hooker. 1981. Measuring the relationship between northern corn leaf blight and yield losses. Plant Dis. 65:325-327.
324. Raymundo, A.D., A.L. Hooker, and J.M. Perkins. 1981. Effect of gene HtN on the development of northern corn leaf blight epidemics. Plant Dis. 65:327-330.
325. Reifschneider, F.J.B., and D.C. Arny. 1979. Seed infection of maize (Zea mays) by Kabatiella zeae. Plant Dis. Rep. 63:352-354.
326. Reifschneider, F.J.B., and D.C. Arny. 1980. Host range of Kabatiella zeae, causal agent of eyespot of maize. Phytopathology 70:485-487.
327. Reifschneider, F.J.B., and D.C. Arny. 1983. Yield loss of maize caused by Kabatiella zeae. Phytopathology 73:607-609.
328. Reyes, L.D., T. Rosenow, R.W. Berry, and M.C. Futrell. 1964. Downy mildew and head smut diseases of sorghum in Texas. Plant Dis. Rep. 48:249-253.
329. Rhind, D., J.M. Waterson, and F.C. Deighton. 1952. Occurrence of Puccinia polysora Underw. in West Africa. Nature (London) 169:631.
330. Ribeiro, R.L.D., R.D. Durbin, D.C. Arny, and T.F. Uchytil. 1977. Characterization of the bacterium inciting chocolate spot of corn. Phytopathology 67:1427-1431.
331. Robert, A.L. 1962. Host ranges and races of the corn rusts. Phytopathology 52: IO 10-10 12.
332. Robert, A.L. and W.R. Findley. 1952. Diseased corn leaves as a source of infection and natural epidemics of Helminthosporium turcicum. Plant Dis. Rep. 36:9-10.
333. Rodriguez, A.E., and A.J. Ullstrup. 1962. Pathogenicity of monoascosporic progenies of Trichometasphaeria turcica. Phytopathology 52:599-601.
334. Rodriquez-Ardon, R., G.E. Scott, and S.B. King. 1980. Maize yield losses caused by southern corn rust. Crop Sci. 20:812-814.
335. Rosen, H.R. 1921. Further observations on a bacterial root and stalk rot of field corn. Phytopathology 11:74-79.
336. Rosen, H.R. 1922. The bacterial pathogen of corn stalk rot. Phytopathology 12:497-499.
337. Rosen, H.R. 1926. Bacterial stalk rot of corn. Arkansas Agric. Exp. Stn. Bull. 209. (Also in: Phytopathology 16:241-267.)
338. Rosenkranz, E., and G.E. Scott. 1978. Effect of plant age at time of inoculation with maize dwarf mosaic virus on disease development and yield in corn. Phytopathology 68: 1688-1692.
339. Rosenkranz, E., and G.E. Scott. 1984. Determination of the number of genes for resistance to maize dwarf mosaic virus strain A in five corn inbred lines. Phytopathology 74:71-76.
340. Rupe, J.C., M.R. Siegal, and J.R. Hartman. 1982. Influence of environment and plant maturity on gray leaf spot of corn caused by Cercospora zeae-maydis. Phytopathology 72:1587-1591.
341. Ryland, A.K., and H.H. Storey. 1955. Physiological races of Puccinia polysora Underw. Nature (London) 176:655-656.
342. Sardanelli, S., L.R. Krusberg, and A.M. Golden. 1981. Corn cyst nematode, Heterodera zeae, in the United States. Plant Dis. 65:622.
343. Sauer, D.B., C.L. Storey, O. Ecker, and D.W. Fulk. 1982. Fungi in U.S. export wheat and corn. Phytopathology 72: 1449-1452.
344. Sauer, D.B., C.L. Storey, and D.E. Walker. 1984. Fungal populations in U.S. farm-stored grain and their relationship to moisture, storage time, regions, and insect infestation. Phytopathology 74:1050-1053.
345. Saxena, K.M.S., and A.L. Hooker. 1974. A study on the structure of gene Rp3 for rust resistance in Zea mays. Can. J. Genet. Cytol. 16:857-860.
346. Schaad, N.W., C.I. Kado, and D.R. Sumner. 1975. Synonymy of Psuedomonas avenae Manns 1905 and Psuedomonas alboprecipitams Rosen 1922. Int. J. Syst. Bacteriol. 25:133-137.
347. Schall, R.A., J.W. McCain, and J.F. Hennen. 1983. Distribution of Puccinia polysora in Indiana and absence of a cool weather form as determined by comparison with P. sorghi. Plant Dis. 67:767-770.
348. Scheffer, R.P., and A.J. Ullstrup. 1965. A host-specific toxic metabolite from Helminthosporium carbonum. Phytopathology 55: 1037-1038.
349. Scheifele, G.L., and R.R. Nelson. 1969. The occurrence of Phyllosticta leaf spot of corn in Pennsylvania. Plant Dis. Rep. 53: 186-189.
350. Scheifele, G.L., R.R. Nelson, and Carol Koons. 1969. Male sterility cytoplasm conditioning susceptibility of resistant inbred lines of maize to yellow leaf blight caused by Phyllosticta zeae. Plant Dis. Rep. 53:656-659.
351. Scheifele, G.L., and C.C. Wernham. 1969. Further evidence supporting the hyposthesis that two genetic systems control disease reaction to maize dwarf mosaic virus strain A and strain B. Plant Dis. Rep. 53:150-151.
352. Scheifele, G.L., W. Whitehead, and C. Rowe. 1970. Increased susceptibility to southern leaf spot (Helminthosporium maydis) in inbred lines and hybrids of maize with Texas malesterile cytoplasm. Plant Dis. Rep. 54:501-503.
353. Schenck, N.C. 1970. Perithecia of Cochliobolus heterostiophus on com leaves in Florida. Plant Dis. Rep. 54: 1127-1128.
354. Schenck, N.C. 1971. Overwintering of Helminthosporium maydis in Florida. Plant Dis. Rep. 55:949-951.
355. Schenck, N.C. 1972. Phaeosphaeria herpotricha on southern corn leaf blight-infected plants in Florida. Plant Dis. Rep. 56:276.
356. Schieber, E., and J.G. Dickson. 1963. Comparative pathology of three tropical com rusts. Phytopathology 53:517-521.
357. Schmitt, C.G., G.E. Scott, and R.E. Freytag. 1977. Response of maize diallel cross to Sclerospora sorghi, cause of sorghum downy mildew. Plant Dis. Rep. 61:607-608.
358. Schuster, M.L., B. Hoff, M. Mandel, and I. Lazar. 1972. Leaf freckles and wilt, a new com disease. p. 176-191. In H.D. Loden and D. Wilkinson (ed.) Proc. Annu. Com Sorghum Res. Conf., 27, Chicago. 12-14 December. ASTA, Washington, DC.
359. Scott, G.E., and M.C. Futrell. 1975. Reaction of diallel crosses of maize in T and N cytoplasms to Bipolaris maydis race T. Crop Sci. 15:779-782.
360. Scott, G.E., S.B. King, and J.W. Armour, Jr. 1984. Inheritance ofresistance to southern com rust in maize populations. Crop Sci. 24:265-267.
361. Scott, G.E., and L.R. Nelson. 1971. Locating genes for resistance to maize dwarf mosaic in maize seedlings by using chromosomal translocations. Crop Sci. 11:801-803.
362. Scott, G.E., and E.E. Rosenkranz. 1973. Use of chromosomal translocations to determine similarity of maize genotypes for reaction to maize dwarf mosaic. Crop Sci. 13:724-725.
363. Scott, G.E., and E.E. Rosenkranz 1974. Independent inheritance ofresistance to com stunt and maize dwarf mosaic in com. Crop Sci. 14:104-106.
364. Scott, G.E., and E.E. Rosenkranz 1981. Effectiveness of resistance to maize dwarf mosaic and maize chlorotic dwarf viruses in maize. Phytopathology 71:937-941.
365. Semeniuk, G., and C.J. Mankin. 1964. Occurrence and development of Sclerophthora macrospora on cereals and grasses in South Dakota. Phytopathology 54:409-416.
366. Shannon, G.M., O.L. Shotwell, A.J. Lyons, D.G. White, and G. Garcia-Aguirre. 1980. Laboratory screening for zearalenone formation in com hybrids and inbreds. J. Assoc. Off. Anal. Chem. 63:1275-1277.
367. Shaw, W.C., D.R. Robinson, and P.F. Sand. 1962. Advances in witchweed control. Weeds 10(3):182-191.
368. Shepherd, R.J., and Q.L. Holdeman. 1965. Seed transmission of the johnsongrass strain of the sugarcane mosaic virus in com. Plant Dis. Rep. 49:468-469.
369. Schurtleff, M.C. (ed.). 1980. Compendium of corn diseases. 2nd ed. Am. Phytopathol. Soc., St. Paul.
370. Simone, G.W. 1978. Inheritance of resistance in fifteen com selections to Helminthosporium turcicum. Ph.D. diss. Univ. of Illinois, Urbana. (Diss. Abstr. 78-11293).
371. Simpson, W.R. 1966. Head smut of corn in Idaho. Plant Dis. Rep. 50:215-217.
372. Simpson, W.R., and H.S. Fenwick. 1968. Chemical control of corn head smut. Plant Dis. Rep. 52:726-727.
373. Simpson, W.R., and H.S. Fenwick. 1971. Suppression of corn head smut with carboxin seed treatment. Plant Dis. Rep. 55:501-503.
374. Singh, B.P., and D.T. Gordon. 1980. Maize dwarf mosaic virus in Michigan. Plant Dis. 64:704-705.
375. Siradhana, B.S., S.R.S. Dange, R.S. Rathore, and S.D. Singh. 1978. Ontogenic predisposition of Zea mays to sorghum downy mildew. Plant Dis. Rep. 62:467-468.
376. Slack, C.R., P.G. Roughan, and H.C.M. Bassett. 1974. Selective inhibition of mesophyll chloroplast development in some C4-pathway species by low night temperatures. p. 499-504. In R.L. Bieleski et al. (ed.) Mechanisms of regulation of plant growth. Bull. 12. The Royal Soc. of New Zealand, Wellington.
377. Smith, D.R. 1971. Inheritance of reaction to Stewart's disease (bacterial wilt) in dent corn. M.S. thesis. Univ. of Illinois, Urbana.
378. Smith, D.R. 1975. Expression ofmonogenic chlorotic-lesion resistance to Helminthosporium maydis in corn. Phytopathology 65:1160-1165.
379. Smith, D.R. 1977. Monitoring corn pathogens. p. 106-121. In H.D. Loden and D. Wilkinson (ed.) Proc. Annu. Corn Sorghum Res. Conf., 32, Chicago. 6-8 December. ASTA, Washington, DC.
380. Smith, D.R. 1984. Monitoring corn pathogens nationally. p. 101-136. In D.E. Alexander (ed.) Proc. 20 Annu. Illinois Corn Breeders School, Univ. of Illinois, Champaign. 6-8 March. Univ. of Illinois, Champaign.
381. Smith, D.R., and A.L. Hooker. 1973. Monogenic chlorotic-lesion resistance in corn to Helminthosporium maydis. Crop Sci. 13:330-331.
382. Smith, D.R., A.L. Hooker., and S.M. Lim. 1970. Physiologic races of Helminthosporium maydis. Plant Dis. Rep. 54:819-822.
383. Smith, D.R., A.L. Hooker., S.M. Lim., and J.B. Beckett. 1971. Disease reaction of thirty sources of cytoplasmic male-sterile corn to Helminthosporium maydis race T. Crop Sci. 11:772-773.
384. Smith, D.R., and J.G. Kinsey. 1980. Further physiologic specialization in Helminthosporium turcicum. Plant Dis. 779-781.
385. Smith, D.R., J.G. Kinsey, and K.D. Kauffmann. 1985. Segregation of Helminthosporium carbonum race I susceptibility in the corn synthetic BS I 3. Plant Dis. 69: 1101.
386. Smith, G.M. 1940. Wilt resistance in new sweet corn hybrids and inbreds. p. 61-62. In Fifty-second annual report Indiana Agric. Exp. Stn. 1939.
387. Smith, M.A. 1926. Infection and spore germination studies with Puccinia sorghi. Phytopathology 16:69.
388. Stevens, N.E. 1934. Stewart's disease in relation to winter temperature. Plant Dis. Rep. 18:141-149.
389. Stevens, N.E., and C.M. Haenseler. 1941. Incidence of bacterial wilt of sweet corn, 1935-1940: Forecast and performance. Plant Dis. Rep. 25:152-157.
390. Stewart, F.C. 1897. A bacterial wilt of sweet corn. N. Y. (Geneva) Agric. Exp. Stn. Bull. 130:423-439.
391. Stienstra, W.C., T. Kommedahl, E.L. Stromberg, C.A. Matyac, C.E. Windels, and F. Morgan. 1985. Suppression of corn head smut with seed and soil treatments. Plant Dis. 69:301-302.
392. Storey, H.H., and A.K. Howland. 1967. Resistance in maize to a third race of Puccinia polysora. Ann. Appl. Biol. 60:297-303.
393. Storey, H.H., A.K. Howland. J.S. Hemingway, J.D. Jameson, B.S.T. Baldwin, H.C. Thorp, and G.E. Dixon. 1958. East African work on breeding maize resistant to the tropical American rust, Puccinia polysora. Empire J. Exp. Agric. 26: 1-17.
394. Stromberg, E.L. 1981. Head smut of maize, a new disease in Minnesota. Phytopathology 71 :906 (Abstr. ).
395. Stromberg, E.L. 1985. Evaluation of gray leaf spot resistance in selected corn hybrids in Virginia. Phytopathology 75:629 (Abstr.).
396. Stromberg, E.L., W.C. Stienstra, T. Kommedahl, C.A. Matyac, C.E. Windels, and J.L. Geadelmann. 1984. Smut expression and resistance of corn to Sphacelotheca reiliana in Minnesota. Plant Dis. 68:880-884.
397. Stromberg, E.L., R.J. Zeyen, and H.G. Johnson. 1978. An epidemic of maize dwarf mosaic virus in sweet corn in Minnesota. Phytopathol. News. 12:225-226 (Abstr.).
398. Sumner, D.R., and N. W. Schaad. 1977. Epidemiology and control of bacterial leaf blight of corn. Phytopathology 67: 1113-1118.
399. Sutton, B.C. 1980. The Coelomycetes. Commonwealth Mycological Inst., Kew, Surrey, England.
400. Sutton, J.C., A. Bootsma, and T.J. Gillespie. 1972. Influence of some cultural practices on yellow leaf blight of maize. Can. Plant Dis. Surv. 52:89-92.
401. Tarr, S.A.J. 1962. Disease of sorghum, sudan grass and broom corn. Commonwealth Mycological Inst., Kew, Surrey, England.
402. Tarte, R. 1971. The relationship between preplant populations of Pratylenchus zeae and growth and yield of corn. J. Nematol. 3:330-331.
403. Tehon, L.R., and E. Daniels. 1925. Notes on parasitic fungi of Illinois. Mycologia 17:240-249.
404. Thayer, P., and L.E. Williams. 1960. Effect of nitrogen, phosphorus and potassium concentrations on the development ofGibberella stalk and root-rot of corn. Phytopathology 50:212-214.
405. Thompson, D.L., and R.R. Bergquist. 1984. Inheritance of mature plant resistance to Helminthosporium maydis race 0 in maize. Crop Sci. 24:807-811.
406. Thompson, D.L., and T.T. Hebert. 1971. Winter survival of Helminthosporium maydis in North Carolina. Plant. Dis. Rep. 55:956-959.
407. Thongmeearkom, P., R.E. Ford, and H. Jedlinski. 1976. Aphid transmission of maize dwarf mosaic virus strains. Phytopathology 66:332-335.
408. Timian, R.G., V.L. Jons, and H.A. Lamey. 1978. Maize dwarf mosaic virus in North Dakota. Plant Dis. Rep. 62:674-675.
409. Tisdale, W.H. 1919. Physoderma disease of corn. J. Agric. Res. 16:137-154.
410. Tosic, M., and R.E. Ford. 1972. Grasses differentiating sugarcane mosaic and maize dwarf mosaic viruses. Phytopathology 62: 1466-14 70.
411. Tu, J.C., and R.E. Ford. 1971. Maize dwarf mosaic virus predisposes corn to root rot infection. Phytopathology 61 :800-803.
412. Tuite, J., and G.H. Foster. 1979. Control of storage diseases of grain. Annu. Rev. Phytopathol. 17:343-366.
413. Tuite, J., G. Shaner, G. Rambo, J. Foster, and R.W. Caldwell. 1974. The Gibberella ear rot epidemics of corn in Indiana in 1965 and 1972. Cereal Sci. Today 19:238-241.
414. Turner, M.T., and E.R. Johnson. 1980. Race of Helminthosporium turcicum not controlled by Ht genetic resistance in corn in the American Corn Belt. Plant Dis. 64:216-217.
415. Tyler, L.J., and C.P. Shumway. 1935. Hybridization between Sphacelotheca sorghi and Sorosporium reilianum. Phytopathology 25:375-376.
416. Ullstrup, A.J. 1941. Two physiologic races of Helminthosporium maydis in the Corn Belt. Phytopathology 31:508-521.
417. Ullstrup, A.J. 1944. Further studies on a species of Helminthosporium parasitizing corn. Phytopathology 34:214-222.
418. Ullstrup, A.J. 1955. Diseases of corn. In G.F. Sprague (ed.) Corn and corn improvement. Agronomy 5:465-536.
419. Ullstrup, A.J. 1960. Bacterial stripe of corn. Phytopathology 50:906-910.
420. Ullstrup, A.J. 1963. Sources of resistance to northern corn leaf blight. Plant Dis. Rep. 47:107-108.
421. Ullstrup, A.J. 1964. Observations on two ephiphytotics of Diplodia ear rot of corn in Indiana. Plant Dis. Rep. 48:414-415.
422. Ullstrup, A.J. 1965. Inheritance and linkage of a gene determining resistance in maize to an American race of Puccinia polysora. Phytopathology 55:425-428.
423. Ullstrup, A.J. 1970a. A comparison of monogenic and polygenic resistance to Helminthosporium turcicum in corn. Phytopathology 1597-1599.
424. Ullstrup, A.J. 1970b. Crazy top of maize. Indian Phytopathol. 23:250-261.
425. Ullstrup, A.J. 1970c. Hosts of Helminthosporium maydis. Plant Dis. Rep. 54: 1103.
426. Ullstrup, A.J. 1971a. Hyper-susceptibility of high-lysine corn to kernel and ear rots. Plant Dis. Rep. 55: 1046.
427. Ullstrup, A.J. 1971b. Overwintering ofrace T of Helminthosporium maydis in midwestern United States. Plant Dis. Rep. 55:563-565.
428. Ullstrup, A.J. 1977. Diseases of corn. In G.F. Sprague (ed.) Corn and corn improvement. Agronomy 18:391-500.
429. Ullstrup, A.J., and M.P. Britton. 1968. An unusual epiphytotic of common corn smut in Indiana and Illinois. Plant Dis. Rep. 52:922-923.
430. Ullstrup, A.J., E.B. Smalley, G.L. Worf, and R.W. Ahrens. 1969. Eyespot: A serious new disease of corn in the USA. Phytopathology 59:105 (Abstr.).
431. Ullstrup, A.J., and M.H. Sun. 1969. The prevalence of crazy top of corn in 1968. Plant Dis. Rep. 53:246-250.
432. Underwood, L.M. 1897. Some new fungi chiefly from Alabama. Bull. Torrey Bot. Club 24:81-86.
433. Uyemoto, J.K. 1983. Biology and control of maize chlorotic mottle virus. Plant Dis. 67:7-10.
434. Uyemoto, J.K., D.L. Bockelman, and L.E. Claflin. 1980. Severe outbreak of corn lethal necrosis disease in Kansas. Plant Dis. 64:99-100.
435. Vidaver, A.K. 1977. Maintenance of viability and virulence of Corynebacterium nebraskense. Phytopathology 67:825-827.
436. Vidaver, A.K., and R.R., Carlson. 1978. Leaf spot of field corn caused by Psuedomonas andropogonis. Plant Dis. Rep. 62:213-216.
437. Villareal, R.L., and R.M. Lantican. 1965. The cytoplasmic inheritance of susceptibility to Helminthosporium leaf spot in corn. Philipp. Agric. 49:294-300.
438. Voorhees, R.K., 1933. Effect of certain environmental factors on the germination of the sporangia of Physoderma zeae-maydis. J. Agric. Res. 47:609-615.
439. Waggoner, P.E., J.G. Horsfall, and R.J. Lukens. 1972. EPIMA Y, a simulator of southern corn leaf blight. Connecticut Agric. Exp. Stn. Bull. 729.
440. Wallin, J.R. 1951. An epiphytotic of corn rust in the north central region of the United States. Plant Dis. Rep. 35:207-211.
441. Walter, J.M. 1934. The mode of entrance of Ustilago zeae into corn. Phytopathology 24: 1012-1020.
442. Walton, J.D., B.W. Gibson, and E.D. Earle. 1982. Purification and characterization of Helminthosporium carbonum race I toxin. Plant Physiol. 69:144 (Abstr.)
443. Warmke, H.E., and N.C. Schenck. 1971. Occurrence of Fusarium moniliforme and Helminthosporium maydis on and in corn seed related to T cytoplasm. Plant Dis. Rep. 55:486-489.
444. Warren, H.L. 1977. Survival of Colletotrichum graminicola in corn kernels. Phytopathology 67:160-162.
445. Warren, H.L., D.M. Huber, D.W. Nelson, and O.W. Mann. 1975. Stalk rot incidence and yield of com as affected by inhibiting nitrification of fall-applied ammonium. Agron. J. 67:655-660.
446. Warren, H.L., and R.L. Nicholson. 1975. Kernel infection, seedling blight, and wilt of maize caused by Colletotrichum graminicola. Phytopathology 65:620-623.
447. Weber, G.F. 1922. Studies on corn rust. Phytopathology 12:89-97.
448. Wei, J., K. Lui, J. Chen, P. Luo, and O. Young Lee-Stadelmann. 1988. Pathological and physiological identification of race C of Bipolaris maydis in China. Phytopathology 78:550-554.
449. Weihing, J.L., and A.K. Vidaver. 1967. Report of holcus leaf spot (Pseudomonas syringae) epidemic on corn. Plant Dis. Rep. 51:396-397.
450. Wellhausen, E.J. 1937a. Effect of the genetic constitution of the host on the virulence of Phytomonas stewarti. Phytopathology 27: 1070-1089.
451. Wellhausen, E.J. 1937b. Genetics of resistance to bacterial wilt in maize. Iowa Agric. Exp. Stn. Res. Bull. 224:69-114.
452. Weston, W.H., Jr. 1929. The occurrence of Sclerospora graminicola on maize in Wisconsin. Phytopathology 19:391-397.
453. Weston, W.H., Jr., and H.N. Uppal. 1932. The basis for Sclerospora sorghi as a new species. Phytopathology 22:573-586.
454. Wheeler, H., D.J. Politis, and C.G. Poneleit. 1974. Pathogenicity, host range, and distribution of Colletotrichum graminicola on corn. Phytopathology 64:293-296.
455. White, D.G., R.G. Hoeft, and J.J. Touchton. 1978. Effect of nitrogen and nitrapyrin on stalk rot, stalk diameter, and yield of corn. Phytopathology 68:811-814.
456. White, D.G., and J. Yanney. 1981. Conservation tillage and plant diseases. p. 164-166. In Crop production with conservation tillage in the 80's. ASAE, St. Joseph, MI.
457. White, D.G., J. Yanney, and T.A. Natti. 1979. Anthracnose stalk rot. p. 1-15. In H.D. Loden and D. Wilkinson (ed.) Proc. Annu. Corn Sorghum Res. Conf., 34, Chicago, 11-13 December. AST A, Washington, DC.
458. Widstrom, N.W. 1979. The role of insects and other plant pests in aflatoxin contamination of corn, cotton and peanuts-a review. J. Environ. Qual. 8:5-11.
459. Widstrom, N.W., W.W. McWilliams, and D.M. Wilson. 1984. Contamination of Preharvest Corn by Aflatoxin. p. 68-83. In H.D. Loden and D. Wilkinson (ed.) Proc. Annu. Corn Sorghum Res. Conf., 39, Chicago. 5-6 December. AST A, Washington, DC.
460. Wilcoxson, R.D. 1962. Stalk rot in relation to yield in corn. Phytopathology 52:416-418.
461. Williams, L.E., and L.J. Alexander. 1965. Maize dwarf mosaic, a new corn disease. Phytopathology 55:802-804.
462. Wilcoxson, R.D., W.R. Findley, E.J. Dollinger, and R.M. Ritter. 1968. Seed transmission studies of maize dwarf mosaic virus in corn. Plant Dis. Rep. 52:863-864.
463. Wilcoxson, R.D., and G.M. Willis. 1963. Disease of corn caused by Colletotrichum graminicolum. Phytopathology 53:364-365.
464. Williamson, D.L., and R.F. Whitcomb. 1975. Plant mycoplasmas: A cultivable spiroplasma causes corn stunt disease. Science (Washington, DC) 188:1018-1020.
465. Wilson, G.W. 1914. The identity of the anthracnose of grasses in the United States. Phytopathology 4: 106-112.
466. Wyllie, T.D., and L.G. Morehouse. (ed.) 1978. Mycotoxic fungi, mycotoxins, mycotoxicoses: An encyclopedic handbook. Marcel Dekker, New York.
467. Wysong, D.S., B. Doupnik, Jr., and L. Lane. 1981. Goss's wilt and corn lethal necrosiscan they become a major problem? p. 104-152. In H.D. Loden and D. Wilkinson (ed.) Proc. Annu. Corn Sorghum Res. Conf., 36, Chicago. 9-11 December. AST A, Washington, DC.
468. Wysong, D.S., and E. Kerr. 1969. Hybrid corn yield reduction by stalk rot and root rot in Nebraska. Plant Dis. Rep. 53:326-329.
469. Yoder, O.C. 1973. A selective toxin produced by Phyllosticta maydis. Phytopathology 63: 1361-1366.
470. Young, H.C., Jr. 1943. The pathogenicity of certain fungi, singly and in combination, on the various inbred lines and crosses of corn. M.S. thesis. Univ. of Minnesota, St. Paul.
471. Young, H.C., Jr., J.M. Prescott, and E.E. Saari. 1978. Role of disease monitoring in preventing epidemics. Annu. Rev. Phytopathol. 16:263-285.
472. Younis, S.E.A. 1969. Locating genes determining resistance to Fusarium stalk-rot in maize. Genetika 1:123-129.
473. Younis, S.E.A., M.K. Abo-El Dahb, and G.S. Mallah. 1969. Genetic studies of the resistance to Fusarium stalk-rot in maize. Indian J. Genet. Plant Breed. 29:418-425.
474. Zeyen, R.E., E. Stromberg, and E. Kuehnast. 1978. Research links MDMV epidemic to aphid flights. Minn. Sci. 33: 10-11.
475. Zuber, M.S. 1973. Evaluation of progress in selection for stalk quality. p. 110-122. In H.D. Loden and D. Wilkinson (ed.) Proc. Annu. Corn. Sorghum Res. Conf., 28, Chicago. 4-6 December. ASTA, Washington, DC.
476. Zuber, M.S., T.C. Ainsworth, M.H. Blanco, and L.L. Darrah. 1981. Effect ofanthracnose leafblight on stalk rind strength and yield in F1 single crosses in maize. Plant Dis. 65:719-722.