Adaptation and invasiveness of western corn rootworm: Intensifying research on a worsening pest

Annual Review of Entomology

Volumn 54, Issue , 2009, Pages 303-321

  Gray, Michael E ^a   Sappington, Thomas W ^b   Miller, Nicholas J ^b   Moeser, Joachim ^c   Bohn, Martin O ^a  

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

^b IOWA STATE UNIVERSITY   (United States)

^c UNIVERSITY OF GÖTTINGEN   (Germany)

Author keywords

Diabrotica virgifera virgifera; Maize rotation

Indexed keywords

DIABROTICA VIRGIFERA VIRGIFERA; GLYCINE MAX; HEXAPODA; ZEA MAYS;

ADAPTATION; AGRICULTURE; ANIMAL; BEETLE; BIOLOGICAL PEST CONTROL; EUROPE; GENETIC SELECTION; GEOGRAPHY; HOST PARASITE INTERACTION; IMMUNOLOGY; MAIZE; METHODOLOGY; NORTH AMERICA; PARASITOLOGY; PHYSIOLOGY; REVIEW;

ADAPTATION, PHYSIOLOGICAL; AGRICULTURE; ANIMALS; BEETLES; EUROPE; GEOGRAPHY; HOST-PARASITE INTERACTIONS; NORTH AMERICA; PEST CONTROL, BIOLOGICAL; SELECTION (GENETICS); ZEA MAYS;

EID: 60549083851     PISSN: 00664170     EISSN: None     Source Type: Book Series    
DOI: 10.1146/annurev.ento.54.110807.090434     Document Type: Article

References (123)

1. Assabgui RA, Arnason JT, Hamilton RI. 1995. Field evaluations of hydroxamic acids as antibiosis factors in elite maize inbreds to the western corn rootworm (Coleoptera: Chrysomelidae). J. Econ. Entomol. 8:1482-93
2. Baca F. 1994. New member of the harmful entomofauna of Yugoslavia Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae). Zast. Bilja 45:125-31
3. Ball HJ, Weekman GT. 1963. Differential resistance of corn rootworms to insecticides in Nebraska and adjoining states. J. Econ. Entomol. 56:553-55
4. Baufeld P, Enzian S. 2006. Abschatzung der Entwicklungvon Diabrotica virgifera virgifera in alternativen Kulturpflanzen unter den klimatischen Bedingungen Deutschlands. Mitt. Biol. Bundeanstalt 400:447
5. Beaumont MA, Zhang WY, Balding DJ. 2002. Approximate Bayesian computation in population genetics. Genetics 162:2025-35
6. Bigger JH. 1941. Breeding corn for resistance to insect attack. J. Earn. Entomol. 34:341-47
7. Branson TF, Krysan JL. 1981. Feeding and oviposition behavior and life cycle strategies of Diabrotica: an evolutionary view with implications for pest management. Environ. Entomol. 10:826-31
8. Branson TF, Ortman EE. 1967. Host range of larvae of the western corn rootworm. J. Econ. Entomol. 60:201-3
9. Branson TF, Ortman EE. 1970. The host range of larvae of the western corn rootworm: further studies. J. Econ. Entomol. 63:800-3
10. Bruck DJ, Lewis LC. 2001. Adult Diabrotica spp. (Coleoptera: Chrysomelidae) infection and emergence with indigenous Beauveria bassiana. J. Invertebr. Pathol. 77:288-89
11. Campbell LA, Meinke LJ. 2006. Seasonality and adult habitat use by four Diabrotica species at prairie-corn interfaces. Environ. Entomol. 35:922-36
12. Chege PG, Clark TL, Hibbard BE. 2005. Alternate host phenology affects survivorship, growth, and development of western corn rootworm (Coleoptera: Chrysomelidae) larvae. Environ. Entomol. 34:1441-47
13. Chiang HC. 1965. Survival of northern corn rootworm eggs through one and two winters. J. Econ. Entomol. 58:470-72
14. Chiang HC. 1973. Bionomics of the northern and western cornrootworms. Annu. Rev. Entomol. 18:47-72
15. Clark TL, Hibbard BE. 2004. Comparison of nonmaize hosts to support western corn rootworm (Coleoptera: Chrysomelidae) larval biology. Environ. Entomol. 33:681-89
16. Coats SA, Tollefson JJ, Mutchmor JA. 1986. Study of migratory flight in the western corn root-worm (Coleoptera: Chrysomelidae). Environ. Entomol. 15:1-6
17. Consolo VF, Salerno GL, Beron CM. 2003. Pathogenicity, formulation and storage of insect pathogenic hyphomycetous fungi tested against Diabrotica speciosa. Biocontrol 48:705-12
18. Crowder DW, Onstad DW, Gray ME. 2006. Planting transgenic insecticidal corn based on economic thresholds: consequences for integrated pest management and insect resistance management. J. Econ. Entomol. 99:899-907
19. Crowder DW, Onstad DW, Gray ME, Mitchell PD, Spencer JL, et al. 2005. Economic analysis of dynamic management strategies utilizing transgenic corn for control of western corn rootworm (Coleoptera: Chrysomelidae). J. Econ. Entomol. 98:961-75
20. Davis SC, Ni X, Quisenberry SS, Foster JE. 2000. Identification and quantification of hydroxamic acids in maize seedling root tissue and impact on western corn rootworm (Coleoptera: Chrysomelidae) larval development. J. Econ. Entomol. 93:989-92
21. Estoup A, Beaumont M, Sennedot F, Moritz C, Cornuet JM. 2004. Genetic analysis of complex demographic scenarios: spatially expanding populations of the cane toad, Bufo marinus. Evolution 58:2021-36
22. Eurostat. 2007. http://epp.eurostat.ec.europa.eu
23. Facon B, Genton BJ, Shykoff J, Jarne P, Estoup A, David P. 2006. A general eco-evolutionary framework for understanding bioinvasions. Trends Ecol. Evol. 21:130-35
24. Fall EH, Wesseler J. 2007. Report on market analyses for the potential use of biological control products in high value maize systems in Europe (WP 2 Task 3). EU Funded Proj. Rep. FP6-2004-SSP-4-022623. 32 pp.
25. Foott WH, Timmins PR. 1977. Observations on new insect pests of grain corn in Essex County, Ontario. Proc. Entomol. Soc. Ont. 108:49-52
26. Gillette CP. 1912. Diabrotica virgifera Lec. A corn rootworm. J. Econ. Entomol. 5:364-66
27. Grant RH, Seevers KP. 1989. Local and long-range movement of adult western corn rootworm (Coleoptera: Chrysomelidae) as evidenced by washup along southern Lake Michigan shores. Environ. Entomol. 18:266-72
28. Gray ME, Levine E, Oloumi-Sadeghi H. 1998. Adaptation to crop rotation: western and northern corn rootworms respond uniquely to a cultural practice. Rec. Res. Dev. Entomol. 2:19-31
29. Gray ME, Steffey KL. 1998. Corn rootworm (Coleoptera: Chrysomelidae) larval injury and root compensation of 12 maize hybrids: an assessment of the economic injury index. J. Econ. Entomol. 91:723-40
30. Hein GL, Tollefson JJ. 1985. Use of the Pherocon AM trap as a scouting tool for predicting damage by corn rootworm (Coleoptera: Chrysomelidae) larvae. J. Econ. Entomol. 78:200-3
31. Hein J, Schierup MH, Wiuf C. 2005. Gene Genealogies, Variation and Evolution: A Primer in Coalescent Theory. Oxford: Oxford Univ. Press. 296 pp.
32. Hibbard BE, Darrah LL, Barry BD. 1999. Combining ability of resistance leads and identification of a new resistance source for western corn rootworm (Coleoptera: Chrysomelidae) larvae in corn. Maydica 44:133-39
33. Hierro JL, Maron JL, Callaway RM. 2005. A biogeographical approach to plant invasions: the importance of studying exotics in their introduced and native range. J. Ecol. 93:5-15
34. Igrc-Barcic J, Bazok R, Edwards CR, Kos T. 2007. Western corn rootworm adult movement and possible egg laying in fields bordering maize. J. Appl. Entomol. 131:400-5
35. Isard SA, Spencer JL, Mabry TR, Levine E. 2004. Influence of atmospheric conditions on high-elevation flight of western corn rootworm (Coleoptera: Chrysomelidae). Environ. Entomol. 33:650-56
36. Jackson JJ. 1996. Field performance of entomopathogenic nematodes for suppression of western corn rootworm (Coleoptera: Chrysomelidae). J. Econ. Entomol. 89:366-72
37. Jenison JR, Shank DB, Penny LH. 1981. Root characteristics of 44 maize inbreds evaluated in four environments. Crop Sci. 21:233-37
38. Journey AM, Ostlie KR. 2000. Biological control of the western corn rootworm (Coleoptera: Chrysomelidae) using the entomopathogenic nematode, Steinernema carpocapsae. Environ. Entomol. 29:822-31
39. Kantack BH. 1965. Western corn rootworm in South Dakota. Proc. N. Centr. Br. Entomol. Soc. Am. 20:62-63
40. Kaster LV, Gray ME. 2005. European corn borers and western corn rootworms: old and new invasive maize pests challenge farmers on European and North American continents. Maydica 50:235-45
41. Kim KS, Ratcliffe ST, French BW, Liu L, Sappington TW. 2008. Utility of EST-derived SSRs as population genetics markers in a beetle. J. Hered. 99:112-24
42. Kim KS, Sappington TW. 2005. Genetic structuring of western corn rootworm (Coleoptera: Chrysomelidae) populations in the U.S. based on microsatellite loci analysis. Environ. Entomol. 34:494-503
43. Kim KS, Stolz U, Miller NJ, Waits ER, Guillemaud T, et al. 2008. A core set of microsatellite markers for western corn rootworm (Coleoptera: Chrysomelidae) population genetics studies. Environ. Entomol. 37:293-300
44. Kiss J, Edwards CR, Berger HK, Cate P, Cean M, et al. 2005. Monitoring of western corn rootworm (Diabrotica virgifera virgifera Le Conte) in Europe 1992-2003. In Western Corn Rootworm: Ecology and Management, ed. S Vidal, U Kuhlman, CR Edwards, 2:29-39. Wallingford, UK: CAB Int. 320 pp.
45. Kiss J, Komáromi J, Bayar K, Edwards CR, Hatala-Zsellér I. 2005. Western corn rootworm (Diabrotica virgifera virgifera LeConte) and the crop rotation systems in Europe. In Western Corn Rootworm: Ecology and Management, ed. S Vidal, U Kuhlman, CR Edwards, 10:189-220. Wallingford, UK: CAB Int. 320 pp.
46. Knolhoff LM, Onstad DW, Spencer JL, Levine E. 2006. Behavioral differences between rotation-resistant and wild-type Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae). Environ. Entomol. 35:1049-57
47. Krueger SR, Roberts DW. 1997. Soil treatment with entomopathogenic fungi for corn rootworm (Diabrotica spp.) larval control. Biol. Control 9:67-74
48. Krysan JL. 1986. Introduction: biology, distribution, and identification of pest Diabrotica. In Methods for the Study of Pest Diabrotica, ed. JL Krysan TA Miller, pp. 25-47. New York: Springer. 260 pp.
49. Krysan JL, Smith RF, Branson TF, Guss PL. 1980. A new subspecies of Diabrotica virgifera (Coleoptera: Chrysomeldae): description, distribution, and sexual compatibility. Ann. Entomol. Soc. Am. 73:123-30
50. Krysan JL, Foster DE, Branson TF, Ostlie KR, Cranshaw WS. 1986. Two years before the hatch: rootworms adapt to crop rotation. Bull. Entomol. Soc. Am. 32:250-53
51. Kuhlman DE, Randell R. 1971. Insect situation, 1971. Proc. 23rd Illinois Custom Spray Operators Training School, pp. 66-85. Coop. Ext. Serv., Univ. Ill., Urbana-Champaign
52. Kuhlmann U, Toepfer S, Zhang F. 2005. Is classical biological control against western corn rootworm in Europe a potential sustainable management strategy? In Western Corn Rootworm: Ecology and Management, ed. S Vidal, U Kuhlmann, CR Edwards, 13:263-84. Wallingford, UK: CABI Publ. 320 pp.
53. Kurtz B, Toepfer S, Ehlers RU, Kuhlmann U. 2007. Assessment of establishment and persistence of entomopathogenic nematodes for biological control of western corn rootworm. J. Appl. Entomol. 131:420-25
54. LeConte JL. 1868-1869. New Coleoptera collected on the survey for the extension of the Union Pacific Railway, E. D. from Kansas to Fort Craig, New Mexico. Trans. Am. Entomol. Soc. 2:49-59
55. Levine E, Gray ME. 1994. Use of cucurbitacin vial traps to predict corn rootworm (Coleoptera: Chrysomelidae) larval injury in a subsequent crop of corn. J. Entomol. Sci. 29:590-600
56. Levine E, Oloumi-Sadeghi H. 1991. Management of diabroticite rootworms in corn. Annu. Rev. Entomol. 36:229-55
57. Levine E, Oloumi-Sadeghi H. 1996. Western corn rootworm (Coleoptera: Chrysomelidae) larval injury to corn grown for seed production following soybeans grown for seed production. J. Econ. Entomol. 89:1010-16
58. Levine E, Oloumi-Sadeghi H, Ellis CR. 1992. Thermal requirements, hatching patterns, and prolonged diapause in western corn rootworm (Coleoptera: Chrysomelidae) eggs. J. Econ. Entomol. 85:2425-32
59. Levine E, Oloumi-Sadeghi H, Fisher JR. 1992. Discovery of multiyear diapause in Illinois and South Dakota northern corn rootworm (Coleoptera: Chrysomelidae) eggs and incidence of the prolonged diapause trait in Illinois. J. Econ. Entomol. 85:262-67
60. Levine E, Spencer JL, Isard SA, Onstad DW, Gray ME. 2002. Adaptation of the western corn rootworm to crop rotation: evolution of a new strain in response to a management practice. Am. Entomol. 48:94-107
61. Liebhold AM, Tobin PC. 2008. Population ecology of insect invasions and their management. Annu. Rev. Entomol. 53:387-408
62. Mabry TR, Spencer JL. 2003. Survival and oviposition of a western corn rootworm variant feeding on soybean. Entomol. Exp. Appl. 109:113-21
63. Mabry TR, Spencer JL, Levine E, Isard SA. 2004. Western corn rootworm (Coleoptera: Chrysomelidae) behavior is affected by alternating diets of corn and soybean. 2004. Environ. Entomol. 33:860-71
64. McPherson RM, Douce GK, Riley DG. 1996. Summary of Losses from Insect Damage and Costs of Control in Georgia 1995. Univ. Ga. Spec. Publ. 90. 54 pp.
65. Meinke LJ, Siegfried BD, Wright RJ, Chandler LD. 1998. Adult susceptibility of Nebraska western corn rootworm (Coleoptera: Chrysomelidae) populations to selected insecticides. J. Econ. Entomol. 91:594-600
66. Melhus IE, Painter RH, Smith FO. 1954. A search for resistance to the injury caused by species of Diabrotica in the corns of Guatemala. Iowa State Coll. J. Sci. 29:75-94
67. Meloche F, Filion P, Tremblay G, Le Sage L. 2001. AvancéQe de Diabrotica virgifera virgifera [Coleoptera: Chrysomelidae] dans les champs de maïs au Québec et collecte dans le soja á Ottawa, Ontario. Phytoprotection 82:35-38
68. Meloche F, Hermans P. 2004. Eastward expansion and discovery of the soybean biotype of western corn rootworm (Diabrotica virgifera virgifera LeConte) in Canada. Can. J. Plant Sci. 84:305-9
69. Meloche F, Rhainds M, Roy M, Brodeur J. 2005. Distribution of western and northern corn rootworms (Coleoptera: Chrysomelidae) in Quebec, Canada. Can. Entomol. 137:226-29
70. Metcalf RL. 1983. Implications and prognosis of resistance to insecticides. In Pest Resistance to Pesticides, ed. GP Georghiou, T Saito, pp. 703-33. New York: Plenum
71. Metcalf RL. 1986. Foreword. In Methods for the Study of Pest Diabrotica, ed. JL Krysan, TA Miller, pp. vii-xv. New York: Springer. 260 pp.
72. Miller N, Estoup A, Toepfer S, Bourguet D, Lapchin L, et al. 2005. Multiple transatlantic introductions of the western corn rootworm. Science 310:992
73. Miller NJ, Ciosi M, Sappington TW, Ratcliffe ST, Spencer JL, Guillemaud T. 2007. Genome scan of Diabrotica virgifera virgifera for genetic variation associated with crop rotation tolerance. J. Appl. Entomol. 131:378-85
74. Miller NJ, Kim KS, Ratcliffe ST, Estoup A, Bourguet D, et al. 2006. Absence of genetic divergence between western corn rootworms (Coleoptera: Chrysomelidae) resistant and susceptible to control by crop rotation. J. Econ. Entomol. 99:685-90
75. Mitchell PD, Gray ME, Steffey KL. 2004. A composed-error model for estimating pest-damage functions and the impact of the western corn rootworm soybean variant in Illinois. Am. J. Agric. Econ. 86:332-44
76. Moeser J, Hibbard BE. 2005. A synopsis of the nutritional ecology of larvae and adults of Diabrotica virgifera virgifera (LeConte) in the new and old world: nouvelle cuisine for the invasive maize pest Diabrotica virgifera virgifera in Europe? In Western Corn Rootworm: Ecology and Management, ed. S Vidal, U Kuhlmann, CR Edwards, 3:41-66. UK: CABI Publ. 320 pp.
77. Moeser J, Vidal S. 2004. Do alternative host plants enhance the invasion of the maize pest Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae) in Europe? Environ. Entomol. 33:1169-77
78. Moeser J, Vidal S. 2004. Response of larvae of the invasive maize pest Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae) to carbon/nitrogen ration and phytosterol content of European maize varieties. J. Econ. Entomol. 97:1335-41
79. Moeser J, Vidal S. 2005. Nutritional resources used by the invasive maize pest Diabrotica virgifera virgifera in its new Southeast European distribution range. Entomol. Exp. Appl. 114:55-63
80. Moeser J, Vidal S. 2006. Resistente Maissorten als Management-Option gegen den invasiven Maiswurzel-bohrer. Mitt. Biol. Bundeanstalt 400:446-47
81. Mollison D. 1986. Modeling biological invasions: chance, explanation, prediction. Philos. Trans. R. Soc. London Ser. B 314:675-93
82. Nowatzki TM, Lefko SA, Binning RR, Thompson SD, Spencer TA, Siegfried BD. 2008. Validation of a novel resistance monitoring technique for corn rootworm (Coleoptera: Chrysomelidae) and Event DAS-59122-7 maize. J. Appl. Entomol. 132:177-88
83. O'Neal ME, Di Fonzo CD, Landis DA. 2002. Western corn rootworm (Coleoptera: Chrysomelidae) feeding on corn and soybean leaves affected by corn phenology. Environ. Entomol. 31:285-92
84. O'Neal ME, Gray ME, Ratcliffe S, Steffey KL. 2001. Predicting western corn rootworm (Coleoptera: Chrysomelidae) larval injury to rotated corn with Pherocon AM traps in soybeans. J. Econ. Entomol. 94:98-105
85. O'Neal ME, Gray ME, Smyth CA. 1999. Population characteristics of a western corn rootworm (Coleoptera: Chrysomelidae) strain in east-central Illinois corn and soybean fields. J. Econ. Entomol. 92:1301-10
86. O'Neal ME, Landis DA, Miller JR, Di Fonzo CD. 2004. Corn phenology influences Diabrotica virgifera virgifera emigration and visitation to soybean in laboratory assays. Environ. Entomol. 33:35-44
87. Onstad DW, Crowder DW, Isard SA, Levine E, Spencer JL, et al. 2003. Does landscape diversity slow the spread of rotation-resistant western corn rootworm (Coleoptera: Chrysomelidae)? Environ. Entomol. 32:992-1001
88. Onstad DW, Crowder DW, Mitchell PD, Guse CA, Spencer JL, et al. 2003. Economics versus alleles: balancing integrated pest management and insect resistance management for rotation-resistant western corn rootworm (Coleoptera: Chrysomelidae). J. Econ. Entomol. 96:1872-85
89. Onstad DW, Joselyn MG, Isard SA, Levine E, Spencer JL, et al. 1999. Modeling the spread of western corn rootworm (Coleoptera: Chrysomelidae) populations adapting to soybean-corn rotation. Environ. Entomol. 28:188-94
90. Onstad DW, Spencer JL, Guse CA, Levine E, Isard SA. 2001. Modeling evolution of behavioral resistance by an insect to crop rotation. Entomol. Exp. Appl. 100:195-201
91. Oyediran IO, Hibbard BE, Clark TL. 2004. Prairie grasses as hosts of the western corn rootworm (Coleoptera: Chrysomelidae). Environ. Entomol. 33:740-47
92. Pascual M, Chapuis MP, Mestres F, Balanya J, Huey RB, et al. 2007. Introduction history of Drosophila subobscura in the new world: a microsatellite-based survey using ABC methods. Mol. Ecol. 16:3069-83
93. Pierce CMF, Gray ME. 2006. Seasonal oviposition of a western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), variant in east central Illinois commercial maize and soybean fields. Environ. Entomol. 35:676-83
94. Pierce CMF, Gray ME. 2006. Western corn rootworm, Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae), oviposition: a variant's response to maize phenology. Environ. Entomol. 35:423-34
95. Pilz C, Wegensteiner R, Keller S. 2007. Selection of entomopathogenic fungi for the control of the western corn rootworm Diabrotica virgifera virgifera. J. Appl. Entomol. 131:426-31
96. Pilz C, Wegensteiner R, Keller S. 2008. Natural occurrence of insect pathogenic fungi and insect parasitic nematodes in Diabrotica virgifera virgifera populations. Biocontrol 53:353-59
97. Purdue University. 2008. Western corn rootworm. http://www.entm.purdue.edu/wcr
98. Rannala B, Mountain JL. 1997. Detecting immigration by using multilocus genotypes. Proc. Natl. Acad. Sci. USA 94:9197-201
99. Rasmann S, Kollner TG, Degenhardt J, Hiltpold I, Toepfer S, et al. 2005. Recruitment of entomopathogenic nematodes by insect-damaged maize roots. Nature 434:732-37
100. Riedell WE, Evenson PD. 1993. Rootworm feeding tolerance in single-cross maize hybrids from different eras. Crop Sci. 33:951-55
101. Rondon SI, Gray ME. 2003. Captures of western corn rootworm (Coleoptera: Chrysomelidae) adults with Pherocon AM and vial traps in four crops in east central Illinois. J. Econ. Entomol. 96:737-47
102. Rondon SI, Gray ME. 2004. Ovarian development and ovipositional preference of the western corn rootworm (Coleoptera: Chrysomelidae) variant in east central Illinois. J. Econ. Entomol. 97:390-96
103. Ruppel RF. 1975. Dispersal of western corn rootworm, Diabrotica virgifera Le Conte, in Michigan (Coleoptera: Chrysomelidae). J. Kans. Entomol. Soc. 48:291-96
104. Sakai AK, Allendorf FW, Holt JS, Lodge DM, Molofsky J, et al. 2001. The population biology of invasive species. Annu. Rev. Ecol. Syst. 32:305-32
105. Sammons AE, Edwards CR, Bledsoe LW, Boeve PJ, Stuart JJ. 1997. Behavioral and feeding assays reveal a western corn rootworm (Coleoptera: Chrysomelidae) variant that is attracted to soybean. Environ. Entomol. 26:1336-42
106. Sappington TW, Siegfried BD, Guillemaud T. 2006. Coordinated Diabrotica genetics research: accelerating progress on an urgent insect pest problem. Am. Entomol. 52:90-97
107. Schroeder JB, Ratcliffe ST, Gray ME. 2005. Effect of four cropping systems on variant western corn rootworm (Coleoptera: Chrysomelidae) adult and egg densities and subsequent larval injury in rotated maize. J. Econ. Entomol. 98:1587-93
108. Shaw JT, Paullus JH, Luckmann WH. 1978. Corn rootworm oviposition in soybeans. J. Econ. Entomol. 71:189-91
109. Siegfried BD, Waterfield N, ffrench-Constant RH. 2005. Expressed sequence tags from Diabrotica virgifera virgifera midgut identify a coleopteran cadherin and a diversity of cathepsins. Insect Mol. Biol. 14:137-43
110. Smith MV. 1983. Northern (Diabrotica longicornis) and western (Diabrotica virgifera) corn rootworm beetles as competitors of foraging honey bees, Apis mellifera. Can. Beekeeping 10:173-74
111. Smith RF, Lawrence JF. 1967. Clarification of the status of the type specimens of diabroticites. Univ. Calif. Publ. Entomol. 45:174
112. Spencer JL, Isard SA, Levine E. 1999. Free flight of western corn rootworm (Coleoptera: Chrysomelidae) to corn and soybean plants in a walk-in wind tunnel. J. Econ. Entomol. 92:146-55
113. Steffey KL, Gray ME, Kuhlman DE. 1992. Extent of corn rootworm (Coleoptera: Chrysomelidae) larval damage in corn after soybeans: search for the expression of the prolonged diapause trait in Illinois. J. Econ. Entomol. 85:268-75
114. Summers CG. 2006. Potential new insect pests of forage crops in California. Univ. Calif. Plant Prot. Q. 16:1-9
115. Sutter GR. 1999. Western corn rootworm. In Handbook of Corn Insects, ed. KL Steffey, ME Rice, J All, DA Andow, ME Gray, JW Van Duyn, pp. 64-65. Lanham, MD: Entomol. Soc. Am. 174 pp.
116. Tate HD, Bare OS. 1946. Corn rootworms. Neb. Agric. Expt. Stn. Bull. 381:3-12
117. Toepfer S, Gueldenzoph C, Ehlers R-U, Kuhlmann U. 2005. Screening of entomopathogenic nematodes for virulence against the invasive western corn rootworm, Diabrotica virgifera virgifera (Coleoptera: Chrysomelidae) in Europe. Bull. Entomol. Res. 95:473-82
118. Tonhasca A Jr, Stinner BR. 1991. Effects of strip intercropping and no-tillage on some pests and beneficial invertebrates of corn in Ohio. Environ. Entomol. 20:1251-58
119. Tsutsui ND, Suarez AV, Holway DA, Case TJ. 2000. Reduced genetic variation and the success of an invasive species. Proc. Natl. Acad. Sci. USA 97:5948-53
120. USDA. 2007. National Agricultural Statistics Service. http://www.nass.usda.gov/
121. Wilson TA, Hibbard BE. 2004. Host suitability of nonmaize agroecosystem grasses for the western corn rootworm (Coleoptera: Chrysomelidae). Environ. Entomol. 33:1102-8
122. Wright RJ, Witkowski JF, Echtenkamp G, Georgis R. 1993. Efficacy and persistence of Steinernema carpocapsae (Rhabditida: Steinernematidae) applied through a center-pivot irrigation system against larval corn rootworms (Coleoptera: Chrysomelidae). J. Econ. Entomol. 86:1348-54
123. Youngman RR, Day ER. 1993. Incidence of western corn rootworm beetles (Coleoptera: Chrysomelidae) on corn in Virginia from 1987 to 1992. J. Entomol. Sci. 28:136-41