Pear resistance to psilla (Cacopsylla pyri l.). A review

Advances in Horticultural Science

Volumn 26, Issue 2, 2012, Pages 59-74

  Nin, S ^a   Ferri, A ^a   Sacchetti, P ^a   Giordani, E ^a  

^a UNIVERSITY OF FLORENCE   (Italy)

Author keywords

Breeding; Germplasm; P. communis; Pest control

Indexed keywords

EID: 84923038862     PISSN: 03946169     EISSN: 15921573     Source Type: Journal    
DOI: None     Document Type: Review

References (147)

1. ARMAND E., LYOUSSOUFI A., RIEUX R., 1991-Évolution du complexe parasitaire des psylles du poirier Psylla pyri et Psylla pyrisuga [Homoptera: Psyllidae] en vergers dans le sud-est de la France au cours de la période hivernale, printanière et estivale.-Entomophaga, 36(2): 287-294.
2. BALDASSARRI N., BARONIO P., ROCCHETTA G., SALVA TERRA G., 1996-Indagine sullo sviluppo di Cacopsylla pyri (L.) (Hemiptera Psyllidae) su differenti mutanti e selezioni di pero.-Bollettino Istituto Entomologico “G. Grandi”, Università di Bologna, 50: 201-213.
3. BATJER L.P., SCHNEIDER H., 1960-Relation of pear decline to rootstocks and sieve-tube necrosis.-Proc. Amer. Soc. Hort. Sci., 76: 85-97.
4. BEERS E.H., BRUNNER J.F., WILLET M.J., WARNER G.M., 1993-Orchard pest management: A resource book for thee pacific northwest.-Good Fruit Grower, Yakima, WA, USA, pp. 276.
5. BELL R.L., 1984-Evaluation of Pyrus germplasm for resistance to the pear psylla.-Acta Horticulturae, 161: 234-237.
6. BELL R.L., 1992-Additional East european Pyrus germplasm with resistance to pear psylla nymphal feeding.-Horticultural Science, 27(5): 412-413.
7. BELL R.L., 2003-Resistance to pear psylla nymphal feeding of germplasm from cental Europe.-Acta Horticulturae, 622: 343-345.
8. BELL R.L., PUTERKA G.J., 2003-Modes of host plant resistance to pear psylla: a review.-Acta Horticulturae, 663: 183-188.
9. BELL R.L., QUAMME H.A., LAYNE R.E.C., SKIRVIN R.M., 1996-Pears, pp. 441-485.-In: JANICK J., and J.N. MOORE (eds.) Fruit breeding. Volume 1. Tree and tropical fruits. John Wiley & Sons, Chichester, West Sussex, UK, pp. 632.
10. BELL R.L., STUART L.C., 1990-Resistance in Eastern European Pyrus germplasm to pear psylla nymphal feeding. Horticultural Science, 25(7): 789-791.
11. BELL R.L., VAN DER ZWET T., 1992-New fire blight resistant advanced selections from the USDA pear breeding program.-Acta Horticulturae, 338: 415-420.
12. BELLINI E., NIN S., 1997-Il miglioramento genetico del pero nel mondo.-Riv. Frutt., 3.
13. BELLINI E., NIN S., 2002-Breeding for new traits in pear. Acta Horticulturae, 596: 217-224.
14. BELLINI E., SANSAVINI S., LUGLI S., NIN S., RIVALTA L., 2000-Obiettivi innovatori del miglioramento genetico del pero nel mondo.-Frutticoltura, 9: 56-69.
15. BENEDEK P., SZABÒ T., NYÉKI J., SOLTÉSZ M., SZABÒ Z., KONRÀD-NÉMETH C., 2010-Susceptibility of European pear genotypes in a gene bank to pear psylla damage and possible exploitation of resistant varieties in organic farming.-International Journal of Horticultural Science, 16(3): 95-101.
16. BENINATO S., LA MORELLA S., 2000-Control of Cacopsylla pyri with massive releases of Anthocoris nemoralis in pear orchards (Pyrus communis L. – Sicily).-Atti delle Giornate Fitopatologiche, 1: 367-372.
17. BERÁNKOVÁ J., KOCOUREK F., 1994-The monitoring of the phenology and population dynamics of the pear psylla (Psylla pyri L.).-Ochrana Rostling, 30: 283-292.
18. BERRADA S., NGUYEN T.X., LEMOINE J., VANPOUCKE J., FOURNIER D., 1995-Thirtheen pear species and cultivars evaluated for resistance to Cacopsilla pyri (Homoptera: Psylliae).-Environ. Entomol. 24(6): 1604-1607
19. BEUTEL J.A., 1985-Asian pears.-Proc. Wash. St. Hort. Soc., 81: 183-188.
20. BIGRE J.P., LEFEUVRE M., 1982-Expérimentation de méthodes de lutte. Un exemple dans le Val de Loire. Le Psylle du poirier.-CRIFL, 4: 43-44.
21. BLOMQUIST C.L., KIRKPATRICK B.C., 2002-Frequency and seasonal distribution of pear psylla infected with the pear decline phytoplasma in California pear orchards. Phytopathology, 92(11): 1218-1226.
22. BOGYA S., SZINETÁR C., MARKÓ V., 1999-Species composition of spider (Araneae) assemblages in apple and pear orchards in the Carpathian Basin.-Acta Phytopathologica et Entomologica Hungarica, 34: 99-121.
23. BOSELLI M., CRISTIANI C., 2008-Diversificare le strategie di lotta contro la psilla del pero.-Terra e Vita, 18: 64-67.
24. BOUVIER L., BOURCY M., BOULAY M., TELLIER M., GUÉRIF P., DENANCÉ C., DUREL C.-E., LESPINASSE Y., 2011-European pear cultivar resistance to bio-pests: scab (Venturia pirina) and psylla (Cacopsylla pyri).-Acta Horticulturae, 909: 459-470.
25. BRANISTE N., AMZAR V., RADULESCU M., SUGAR D., 1994-Resistance sources to psylla sp.-Acta Horticulturae, 367: 54-63.
26. BRANISTE N., MILITARU M., 2008-Germplasm fund of Pyrus sp. presently in ex-situ Romania collections.-Acta Horticulturae, 800: 497-501.
27. BRIOLINI G., FACCIOLI G., PESQUALINI E., 1989.-A seven-year research on alternative methods to control pear psylla.-SROP/WPRS Bulletin, 13(2): 89-92.
28. BROWN R.L., LANDOLT P.J., HORTON D.R., ZACK R.S., 2009-Attraction of Cacopsylla pyricola (Hemiptera: Psyllidae) to female psylla in pear orchards.-Environ. Entomol., 38(3): 815-822.
29. BRUNNER C., 1997-‘Harrow Sweet’: una pera da seguire e incoraggiare.-Riv. Frutt., 59(3): 43-45.
30. BRUNNER J.F., 1984-The development, distribution and sampling for the pear psyllids, Psylla pyricola.-IOBC/WPRS Bulletin, 7: 81-96.
31. BURTS E.C., 1970-The pear psylla in Central Washington. Washington Agricultural Experiment Station, Pullman, WA, USA, Circular 13, pp. 516.
32. BURTS E.C., 1988-Damage threshold for pear psylla nymphs (Homoptera: Psyllidae).-J. Econ. Entomol. 78: 1327-1330.
33. BURTS E.C., FISCHER W.R., 1967-Mating behaviour, egg production, and egg fertility in the pear psylla.-J. Econ. Entomol., 60: 1297-1300.
34. BURTS E.C., VAN DE BAAN H.E., CROFT B.A., 1989-Pyrethroid resistance in pear psylla, Psylla pyricola Foerster (Homoptera: Psyllidae), and synergism of pyrethroids with piperonyl butoxide.-Canadian Entomologist, 121: 219-223.
35. BUTT B.A., STUART L.C., BELL R.L., 1988-Feeding behaviour of pear Psylla (Homoptera: Psyllidae) nymphs on susceptible and resistant pyrus germplasm.-Journ. Econ. Entomol., 81(5): 1394-1397.
36. BUTT B.A., STUART L.C., BELL R.L., 1989-Feeding, longevity, and development of pear psylla (Homoptera: Psyllidae) nymphs on resistant and susceptible pear genotypes.-J. Econ. Entomol., 82(2): 458-461.
37. CARRARO L., LOI N., ERMACORA P., GREGORIS A., OSLER R., HADIDI A., 1998-Trasmission of pear decline by using naturally infected Cacopsylla pyri L.-Acta Horticulturae, 472: 665-668.
38. CHALLICE J.S., WILLIAMS A.H., 1968-Phenolic compounds of the genus Pyrus-I. The occurrence of flavones and phenolic acid derivatives of 3,4-dihydroxybenzyl alcohol 4-glucosided in Pyrus calleryana.-Phytochemistry, 7(1): 119-130.
39. CHANG J.F., PHILOGENE B.J.R., 1975-A bibliography on the pear psylla, Psylla pyricola (Homoptera; Psyllidae). Bull. Entomol. Soc. Am., 21: 247-249.
40. CIVOLANI S., 2000-Elementi di studio sulla dinamica delle popolazioni svernanti di Cacopsylla pyri L. e del suo predatore Anthocoris nemoralis in relazione alla diffusione della moria del pero Pyrus communis L. in Emilia-Romagna.-Informatore Fitopatologico, 50(11): 27-34.
41. CIVOLANI S., 2012-The past and present of pear protections against the pear psylla, Cacopsylla pyri L., pp. 385-408.-In: PERVEEN F. (ed.) Insecticides. Pest engineering. InTech, Rijeka, Croatia, pp. 538.
42. CIVOLANI S., LEIS M., GONZÀLES E., PASQUALINI E., TJALLINGII W.F., 2010-Probing behaviour of Cacopsylla pyri, an elettrical penetration graph (EPG) study.-J. of Plant Physiology, 165(17): 1808-1816.
43. CIVOLANI S., PASQUALINI E., 2003-Cacopsylla pyri (L.) and its predators relationship in Italy’ s Emilia Romagna region.-J. Appl. Entomology, 127: 214-220.
44. CIVOLANI S., PASQUALINI E., 2005-Comportamento autunnale della psilla e dei suoi predatori.-L’Informatore Agrario, 61(30): 67-70.
45. CIVOLANI S., PERETTO R., CAROLL L., PASQUALINI E., CHICCA M., LEIS M., 2007-Preliminary resistance screening on abamectin in pear psylla (Hemiptera: Psyllidae) in Northern Italy.-J. Econ. Entomol., 100(5): 16371641.
46. CROFT B.A., BURTS E.C., VAN DE BAAN H.E., WESTI GARD P.H., RIEDL H.W., 1989-Local and regional resistance to fenvalerate in Psylla pyricola (Homoptera: Psyllidae) in western North America.-Can. Entomol., 121: 121-129.
47. DANIEL C., WYSS E., 2006-Pre-flowering kaolin treatments against the European pear sucker, Cacopsylla pyri (L.). Deutsche Gesellschaft fur Allgemeine und Angwandte Entomologie, 15: 263-268.
48. DAUGHERTY M.P., BRIGGS C.J., WELTER S.C., 2007-Bottom-up and top-down control of pear psylla (Cacopsylla pyricola): fertilization, plant quality, and the efficacy of the predatior Antocoris nemoralis.-Biological Control, 43: 257-264.
49. DAVIES D.L., CLARK M.F., ADAMS A.N., HADIDI A., 1998-The epidemiology of pear decline in the UK.-Acta Horticulturae, 472: 669-672.
50. DEBRAS J.-F., SENOUSSI R., RIEUX R., BUISSON E., DU TOIT T., 2008-Spatial distribution of an arthropod community in a pear orchard (Southern France). Identification of a hedge effect.-Agriculture, Ecosystems and Environment, 127: 166-176.
51. DEGENHARDT J., GERSHENZON J., BALDWIN I.T., KES SLER A., 2003-Attracting friends to feast on foes: engineering terpene emission to make crop plants more attractive to herbivore enemies.-Current Opinion in Biotechnology, 14: 169-176.
52. DERONZIER S., 1984-Dynamique des population de Psylla pyri L. en verger abandonné, dans la sud-est de la France. Agronomie, 4(6): 549-556.
53. DERONZIER S., ATGER P., 1980-Eléments d’etude de la dynamique des populations de Psylla pyri L. dans la Basse Vallée du Rhone: period hivernale et printanière.-Acta Oecologica, 1: 247-258.
54. DETHIER V.G., 1982-Mechanism of host-plant recognition. Entomol. Exp. Appl., 31: 49-56.
55. ERLER F., 2004-Natural enemies of pear psylla, Cacopsylla pyri in treated vs untreated pear orchards in Antalya, Turkey.-Phytoparasitica, 32(5): 295-304.
56. ERLER F., CETIN H., 2005-Evaluation of some selective insecticides and their combinations with summer oil for the control of the pear psylla Cacopsylla pyri.-Phytoparasitica, 33(3): 169-176.
57. ERLER F., YEGEN O., ZELLER W., 2007-Field evaluation of a botanical natural product against the pear psylla (Homoptera: Psyllidae).-J. Econ. Entomol., 100(1): 66-71.
58. FAUVEL G., RIEUX R., FAIVRE D’ARCIER F., LYOUS SOUFI A., 1994-Study of biological control of Cacopsylla pyri (L.) in pear orchards by experimental release of eggs of Anthocoris nemoralis F. I. Methodology.-Bulletin OILBSROP, 17(2): 81-85.
59. FIORI B.J., LAMB R.C., 1982-Histological method for determining resistance of Pyrus ussuriensis x P. communis hybrids against the pear psylla.-J. Econ. Entomol., 75:1, 91-93.
60. FOLLETT P.A., CROFT B.A., WESTIGARD P.H., 1985-Regional resistance to insecticides in Psylla pyricola from pear orchards in Oregon.-Can. Entomol., 117: 565-573.
61. FYE R.E., 1983-Dispersal and winter survival of the pear psylla.-J. Econ. Entomol., 76: 311-315.
62. GEORGALA M.B., 1956-A contribution to the biology of pear sucker, Psylla pyricola Foer.-Ann. Rep. East Malling Res. Sta., 1956: 135-141.
63. GERARD H.C., FETT W.F., MOREAU R.A., OSMAN F.S., MILLER R.L., 1993-Chemical and enzimatic investigation of the leaf cuticle of pear genotypes differing in resistance to pear psylla.-J. Agric. Food Chem., 41: 2437-2441.
64. GIUNCHEDI L., REFATTI E., 1997-Il problema della moria del pero.-Frutticoltura, 10: 59-61.
65. GIUNCHI P., 1959-La psilla del pero.-Informatore fitopatologico, 9: 431-434.
66. GUÉDOT C., MILLAR J.G., HORTON D.R., LANDOLT P.J., 2009-Identification of a sex attractant pheromone for male winterform pear psylla, Cacopsylla pyricola.-J. Chem. Ecol., 35: 1437-1447.
67. GUERRINI S., BISSANI R., POGGI POLLINI C., GIUNCHE DI L., 2000-Studi epidemiologici sulla moria del pero. Frutticoltura, 9: 30-34.
68. HARRIES F.H., BURTS E.C., 1965-Insecticide resistance in the pear psylla.-J. Econ. Entomol., 58(1): 172-173.
69. HARRIS M.K., 1973-Host resistance to the pear psylla in a Pyrus communis x Pyrus ussuriensis hybrid.-Enviromental Entomology, 2(5): 883-888.
70. HARRIS M.K., 1975-Greenhouse testing of pears with Pyrus ussuriensis lineage for resistance to Psylla pyricola.-J. Econ. Entomol., 68(5): 641-644.
71. HARRIS M.K., LAMB R.C., 1973-Resistance to the pear psylla in pears with Pyrus ussuriensis lineage.-Journal Amer. Soc. Hort. Sci., 98: 378-381.
72. HENDERSON C.F., McBURNEY H.Y., 1943-Sampling technique for determining populations of the citrus red mite and its predators.-USDA, Circular no. 671.
73. HIBINO H., SCHNEIDER H., 1970-Mycoplasmalike bodies in sieve tubes of pear trees affected with pear decline.-Phytopathology, 60: 499-501.
74. HORTON D.R., 1993-Diurnal patterns of yellow trap catch of pear psylla (Homoptera: Psyllidae): differences between sexes and morphotypes.-Can. Entomol., 125: 761-767.
75. HORTON D.R., 1994-Relationship among sampling methods in density estimates of pear psylla (Homoptera: Psyllidae)-implications of sex, reproductive maturity, and sampling location.-Ann. Entomol. Soc. Amer., 87: 583-591.
76. HORTON D.R., BURTS E.C., UNRUH T.R., KRYSAN J.L., COOP L.B., CROFT B.A., 1993-Intraorchard changes in distribution of winterform pear psylla (Homoptera: Psyllidae) associated with leaf fall in pear.-Annals of the Entomological Society of America, 86: 599-608.
77. HORTON D.R., DEBRA A.B., HINOJOSA T., LEWIS T.M., MILICZKY E.R., LEWIS R.R., 2002-Diversity and phenology of predatory arthropods overwintering in cardboard bands placed in pear and apple orchards of central Washington state.-Ann. Entomol. Soc. of Amer., 95: 469-480.
78. HORTON D.R., HIGBEE B.S., UNRUTH T.R., WESTIGARD P.H., 1992-Spatial characteristics and effects of fall density and weather on overwintering loss of pear psylla (Homoptera: Psyllidae).-Environ. Entomol., 21: 1319-1332.
79. HORTON D.R., KRYSAN J.L., 1990-Probing and ovipositionrelated activity of summerform pear psylla (Homoptera: Psyllidae) on host and nonhost substrates.-Environ. Entomol., 19(5): 1463-1468.
80. HORTON D.R., KRYSAN J.L., 1991-Host acceptance behavior of pear psylla (Homoptera: Psyllidae) affected by plant species, host deprivation, habituation, and eggload.-Ann. Entomol. Soc. Am., 84(6): 612-627.
81. HORTON D.R., LEWIS T.M., 1997-Quantitative relationship between sticky trap catch and beat tray counts of pear psylla (Homoptera: Psyllidae): seasonal, sex and morphotypic effects.-J. Econ. Entomol., 90: 170-177.
82. HUNTER D.M., 1994-Dal Canada nuove cultivar di pero selezionate per resistenza al “colpo di fuoco batterico” e psilla.-L’Informatore Agrario, 50(34): 61-63.
83. JENSER G., SZITA E., BALINT J., 2010-Measuring pear population density (Cacopsylla pyri L. and C. pyricola Forster): review of previous methods and evaluation of a new technique.-North-Western Journal of Zoology, 6(1): 54-62.
84. KRYSAN J.L., HORTON D.R., 1991-Seasonality of catch of pear psylla Cacopsylla pyri (Homoptera: Psyllidae) on yellow traps.-Environ. Entomol., 20: 626-634.
85. LE LÉZEC M., BAUTRAIS P., BELOUIN A., 1991-Breeding pear for resistance to Erwinia amylovora.-Arboriculture Fruitiere, 440.
86. LESPINASSE Y., CHEVALIER M., DUREL Ch.-E., 2008 Pear breeding for scab and Psylla resistance.-Acta Horticulturae, 800: 475-482.
87. LYOUSSOUFI A., GADENNE C., RIEUX R., FAIVRE D’ ARCIER F., 1994-Evolution de la diapause du psylle du poirier Cacopsylla pyri dans le conditions naturelles.-Entomol. Exp. Appl., 70: 193-199.
88. MARANI G., REGGIDORI G., 2007-La difesa dalla psilla del pero.-Riv. di Frutticoltura e di Ortofloricoltura, Suppl. 6: 9-12.
89. MARČIĆ D., PERIĆ P., PRIJOVIĆ M., OGURLIĆ I., 2009-Field and greenhouse evaluation of rapeseed spray oil against spider mites, green peach aphid and pear psylla in Serbia.-Bulletin of Insectology, 62(2): 159-167.
90. MARČIĆ D., PERIĆ P., PRIJOVIĆ M., OGURLIĆ I., ANDRIĆ G., 2008-Chemical control of Cacopsylla pyri L. in Serbian pear orchards using biorational insecticides.-Acta Horticulturae, 800: 941-946.
91. McMULLEN R. D., JONG C., 1977-Effect of temperature on developmental rate and fecundity of the pear psylla, Psylla pyricola (Homoptera: Psyllidae).-Can. Entomol., 109: 165-169.
92. MILLER R.L., BILLS D.D., BUTTERY R.G., 1989-Volatile components from Barlett and Bradford pear leaves.-J. of Agricultural and Food Chemistry, 37: 1476-1479.
93. MOORE J.N., BALLINGTON J.R. Jr, 1991-Genetics resources of temperate fruit and nut crops.-Acta Horticulturae, 290: 666-697.
94. MORGAN D., SOLOMON M.G., 1993-Pest-man: a forecasting system for apple and pear pests.-OEPP/EPPO Bulletin, 23: 601-605.
95. MORI P., SANCASSANI G.P., 1984-Essai de lute intégré contre le psylle du poirier (Psylla pyri) en Vénitie.-Bulletin OILB/SROP, 7(5): 354-357.
96. MUSACCHI S., ANCARANI V., GAMBERINI A., GIATTI B., SANSAVINI S., 2005-Progress in pear breeding at the University of Bologna.-Acta Horticulturae, 671: 191-194.
97. MUSACCHI S., ANCARANI V., SANSAVINI S., 2006 Qualità e resistenza alle malattie nei programmi di miglioramento genetico a Bologna.-Frutticoltura 10: 20-23.
98. NAUEN R., RECKMANN U., THOMZIK J., THIELERT W., 2008-Biological profile of spirotetramat (Movento®)-a new two-way systemic (ambimobile) insecticide against sucking pest species.-Bayer Crop Science Journal, 61(2): 245-278.
99. NGUYEN T. X., 1962-Cycle biologique d’un psylle du Poirier, Psylla pyri L. (Homoptère, Psyllidae) dans le midi de la France.-Bulletin Soc. Hist. Nat. Toulose, 97(1-2): 233-240.
100. NGUYEN T.X., 1975-Evolution de la diapause ovarienne de Psylla pyri (Homoptera Psyllidae) dans le conditions naturelles de la région Toulousaine.-Bulletin de la Societe Zoologique de France, 100(2): 71-74.
101. NUCIFORA A., 1969-La Psylla pyri L. nei frutteti dell’ Etna. Tecnica Agricola, 21: 348-361.
102. PASQUALINI E., CIVOLANI S., 2006-L’integrazione delle tecniche garantisce un’efficace difesa dalla psilla.-Riv. di Frutticoltura e di Ortofloricoltura, Speciale Pero, 10: 26-31.
103. PASQUALINI E., CIVOLANI S., 2007-Spirodiclofen, nuovo insetticida efficace contro la psilla del pero.-L’Informatore Agrario, 11: 89-93.
104. PASQUALINI E., CIVOLANI S., CORELLI-GRAPPADELLI, 2003-Particle film technology: approach for a biorational control of Cacopsylla pyri (Rhynchota: Psyllidae) in Northern Italy.-Bulletin of Insectology, 55(1-2): 39-42.
105. PASQUALINI E., CIVOLANI S., MUSACCHI S., ANCA RANI V., DONDINI L., ROBERT P., BARONIO P., 2006-Cacopsylla pyri resistance on a new pear selection for host resistance programs.-Bulletin of Insectology, 59(1): 27-37.
106. PASQUALINI E., NATALE D., CIVOLANI S., VERGNANI S., 1997-Indagini sull’attività di alcuni prodotti non convenzionali per il contenimento di Cacopsylla pyri (Homoptera Psyllidae).-L’Informatore Agrario, 21: 65-68.
107. PRIORE R., 1991-Biological study on Cacopsylla Pyri L. in Campania region (1986-1988).-Informatore Fitopatologico, 41(3): 57-61.
108. PROKOPY R., OWENS E.D., 1983-Visual detection of plant by herbivorous insects.-Annual Revue of Entomology, 28: 337-364.
109. PUTERKA G., FARONE W., PALMER T., BARRINGTON A., 2003-Structure-function relationships affecting the insecticidal and miticidal activity of sugar esters.-J. Econ. Entomol., 96(3): 636-644.
110. PUTERKA G.J., 1997-Intraspecific variation in pear psylla (Psyllidae: Homoptera) nymphal survival and development on resistant and susceptible pear.-Environ. Entomol., 26(3), 552-558.
111. PUTERKA G.J., BELL R.L., JONES S.K., 1993-Ovipositional preferences of pear psylla (Homoptera: Psyllidae) for resistant and susceptibility pear.-J. Econ. Entomol., 86(4): 1297-1302.
112. PUTERKA G.J., GLENN D.M., PLUTA R.C., 2005-Action of particle films on the biology and behavior of pear psylla; (Homoptera: Psyllidae).-J. Econ. Entomol., 98(6): 20792088.
113. PUTERKA G.J., GLENN D.M., SEKUTOWSKI D.G., UN RUH T.R., JONES S.K., 2000-Progress toward liquid formulations of particle film for insect and disease control in pear.-Environ. Entomol., 29(2): 329-339.
114. QUAMME H.A., 1984-Observations of psylla resistance among several pear cultivars and species.-Fruit Var. J., 38: 34-36.
115. QUARTA R., PUGGIONI D., 1985-Survey on the variety susceptibility to pear psylla.-Acta Horticolturae, 159: 77-86.
116. RIEDL H., WESTIGARD P.H., BETHELL R.S., DETAR J.E., 1981-Problems with chemical control of pear psylla.-Calif. Agric., 35(9,10): 7-9.
117. RIEUX R., FAUVEL G., FAIVRE D’ARCIER F., FOURNAGE G., LYOUSSOUFI A., 1994-Study of control against Cacopsylla pyri (L.) in pear orchards by experimental release of Anthocoris nemoralis F. in the eggs stage. II. Results and discussion.-Bulletin OILB-SROP, 17(2): 120-124.
118. RIEUX R., LYOUSSOUFI A., ARMAND E., D’ARCIER F.F., 1992-Dynamique des populations hivernales et post-hivernales du psylle du poirier Psylla pyri (L.) (Homoptera: Psyllidae).-Acta Phytopathologica et Entomologica Hungarica, 27: 545-549.
119. RIEUX R., LYOUSSOUFI A., D’ARCIER F.F., 1990-Mise en place des populations hivernales de Psylla pyri (L.) (Homoptera: Psyllidae) en conditions naturelles dans le region d’Avignon-Montfavet.-IOBC/WPRS Bulletin, 18(2): 17-21.
120. RIVALTA L., DRADI M., 1998-Miglioramento genetico del pero presso l’ Istituto Sperimentale per la Frutticoltura di Forlì.-Riv. di Frutticoltura e di Ortofloricoltura, 60(9): 51-57.
121. ROBERT P., CHAUSSET J., LE LÉZEC M., 1999-Larval development of Cacopsylla pyri (L.) (Homoptera: Psyllidae) on two resistant Pyrus genotypes.-IOBC/WPRS Bulletin, 22(10): 89-91.
122. ROBERT P., GUERIF P., LEMOINE J., LE LEZEC M., 2004 Criblage de genotypes de Pyrus vis-à-vis de la résistance au psylle du poirier Cacopsylla pyri (L.).-Cahiers Agricultures, 13(4): 349-354.
123. ROBERT P., RAIMBAULT T., 2005-Resistance of some Pyrus communis cultivars and pyrus hybrids to the pear psylla Cacopsylla pyri (Homoptera, Psyllidae).-Acta Horticulturae, 671: 571-575.
124. SALVIANTI F., BETTINI P.P., GIORDANI E., SACCHETTI P., BELLINI E., BUIATTI M., 2006-Identification by suppression subtractive hybridization of genes espresse in pear (Pyrus spp.) upon infestation with Cacopsylla pyri (Homoptera: Psyllidae).-J. of Plant Physiology, 165: 1808-1816.
125. SANCHEZ J.A., ORTIN-ANGULO M.C., 2011-Sampling of Cacopsylla pyri (Hemiptera: Psyllidae) and Pilophorus gallicus (Hemiptera: Miridae) in pear orchards.-J. Econ. Entomol., 104(5): 1742-1751.
126. SANSAVINI S., 1999-Il colpo di fuoco batterico. I traguardi della genetica.-Il Divulgatore, 1.
127. SANSAVINI S., ROSATI P., 1986-Resistenza genetica delle piante da frutto alle avversità parassitarie.-Rivista di Frutticoltura, 8: 43-46.
128. SCHAUB L., GRAF B., BUTTURINI A., 2005-Phenological model of pear psylla Cacopsylla pyri.-Entomologia Experimentalis et Applicata, 117: 105-111.
129. SCUTAREANU P., DRUKKER B., BRUIN J., POSTHUMUS M.A., SABELIS M.W., 1997-Volatiles from psylla-infested pear trees and their possible involvement in attraction of anthocorid predators.-J. Chem. Entomol., 23(10): 2241-2260.
130. SCUTAREANU P., MA Y., CLAEYS M., DOMMISSE R., SA BELIS M.W., 1999-Induction of a p-cumaroyl trihydroxy triterpene acid in psylla-infested and mechanically damaged pear trees.-J. Chem. Entomol., 25(9): 2177-2191.
131. SCUTAREANU P., SABELIS M.W., BOON J.J., 2001-Systemic and non-systemic responses induced by herbivory variation among pear cultivars.-IOBC/WPRS Bulletin, 24(5): 227-234.
132. SESTRAS R., BOTEZ C., ARDELEAN M., OLTEAN I., SES TRAS A. 2009-Response of pear genotypes to Psylla sp. attack in Central Transylvania, Romania.-Acta Horticulturae, 814: 845-850.
133. SLIGERLAND M.V., 1892-The pear-tree psylla.-Cornell Univ. Agric. Exp. Stn. Bull., 44: 161-186.
134. STAMENKOVIC’ S., MILENKOVIC’ S., NIKOLIC’ M., 1993-The infestation levels of pear psylla, Psylla pyri L. on some pear cultivars.-IOBC/WPRS Bulletion, 17(2): 142-145.
135. STANLEY D., 1993-Scientists seek limits on pear pests.-Ag ricultural Research, 41(11): 4-9.
136. STAUBLI A., HACHLER M., PASQUER D., ANTONIN P., MITTAZ C., 1992-Dix années d’ expérience et d’ observations sur le psylle commun du poirier Cacopsylla (=Psylla) pyri L. en Suisse romande.-Revue Suisse Viticulture Arboriculture et Horticolture, 24: 89-104.
137. STRATOPOULOU E. T., KAPATOS E. T., 1995-The dynamics of the adult population of pear psylla, Cacopsylla pyri L. (Hom., Psyllidae) in the region of Magnesia (Greece).-J. Appl. Entomol., 119: 97-101.
138. STRAULEA M., ARDELEAN M., GHIDRA V., SESTRAS R., 1992-Scorching rate of pear trees following infestation with melliferous fea (Psylla sp.).-Bul. ESAMV, A-H., 46(2): 91-97.
139. STUART L.C., BUTT B.A., BELL R.L., 1989-Effect of host phenology on ovipositional preferences of winter form pear psylla (Homoptera: Psyllidae).-J. Entomol. Soc. Brit. Columbia, 86: 34-38.
140. SZABÓ T., LABUSCHAGNE I.F., MUSACCHI S., NYÉKI J., TRONYAI J.,SOLTÉSZ M., SZABÓ Z., 2010-The Hungarian pear germplasm as source of genetic variability for breeding programmes.-Int. J. of Hortic. Sci., 16(3): 7-13.
141. TERZA S., PAVAN F., 1988-La psilla del pero nel veronese. Un’esperienza di lotta integrate.-L’Informatore Agrario, 44(17): 69-74.
142. TREMBLAY E., 1995-Entomologia applicata.-Ed. Liguori, Vol II, pp. 101-105.
143. ULLMAN D.E., McLEAN D.L., 1988-Feeding behavior of the winter-form pear psylla, Psylla pyricola (Homoptera: Psyllidae), on reproductive and transitory host plants.-Environ. Entomol., 17: 675-678.
144. WESTIGARD P.H., LOMBARD P.B., BERRY D.W., 1979 Integrated pest management of insects and mites attacking pears in Southern Oregon.-J. Econ. Entomol., 61: 740-743.
145. WESTIGARD P.H., WESTWOOD M.N., LOMBARD P.B., 1970-Host preference and resistance of Prunus species to the pear psylla, Psylla pyricola Foerster.-J. Amer. Soc. Hort. Sci., 95(1): 34.
146. WESTIGARD P.H., ZWICK R. W., 1972-The pear psylla in Oregon.-Oregon Agric. Exp. Stn. Tech. Bull., 122.
147. WILDE W.H.A., McINTOSH D.L., 1964-Psylla pyricola Foerster suppresses pear tree root development.-Can. Entomol., 96: 1083-1087.