Rutgers School of Environmental and Biological Sciences [Dept. of Entomology]

Peter Shearer

shearer@aesop.rutgers.edu

Abstract: Developing and implementing integrated pest management (IPM) programs for tree fruit is the central focus of my research program. This multifaceted research is based upon understanding the biology and ecology of arthropod pests, natural enemies, and their interactions with host plants. My research also includes studying the impact of pesticides on non-target arthropods, insecticide resistance monitoring, and pesticide efficacy. I am also involved in developing alternative pest management options including mating disruption, integrated fruit production (IFP) programs, orchard floor management, and sustainable tree fruit pest management.

Selected Publications:
  • Krimian, A., P.W. Shearer, Aijun Zhang, George C. Hamilton and J. Aldrich. 2008. Field trapping of invasive brown marmorated stink bug, Halyomorpha halys, with geometric isomers of methyl 2,4,6-decatrienoate. J. Agric. Food Chem. 56: 197–203.
  • Aldrich. J. R., A. Khrimian, A. Zhang, and P. W. Shearer. 2006. Bug pheromones (Hemiptera: Heteroptera) and tachinid fly host-finding. Denesia. 19:1015-1031.
  • Atanassov, A. and P. W. Shearer. 2006. Peach extrafloral nectar impacts life span and reproduction of adult Grapholita molesta (Busck) (Lepidoptera: Tortricidae). Journal of Agricultural and Urban Entomology. 22 (1): 41-47.
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  • Lalancette, N., R. D. Belding, P. W. Shearer, J. L Frecon, and W. H. Tietjen. 2005. Evaluation of hydrophobic and hydrophilic kaolin particle films for peach crop, arthropod, and disease management. Pest Manag Sci. 61:25-39.
  • Shearer, P. W. and A. Atanassov. 2004. Impact of peach extrafloral nectar on key biological characteristics of Trichogramma minutum Riley (Hymenoptera: Trichogrammatidae). J. Econ. Entomol. 97: 789-792.
  • Atanassov, A., P. W. Shearer, and G. C. Hamilton. 2003. Peach pest management programs impact beneficial fauna abundance and Grapholita molesta (Lepidoptera: Tortricidae) egg parasitism and predation. Environ. Entomol. 32: 780-788.
  • Atanassov, A., P. W. Shearer, G. Hamilton, and D. Polk. 2002. Development and implementation of a reduced risk peach arthropod management program in New Jersey orchards. J. Econ. Entomol. 95: 803-812.
  • Shearer, P. W. and J. L. Frecon. 2002. Managing Brachycaudus persicae (Homoptera: Aphididae) during peach orchard establishment. J. Econ. Entomol. 95: 368-371.
  • de Lame, F. M., J. J. Hong, P. W. Shearer, and L B. Brattsten. 2001. Sex related differences in the resistance of Oriental fruit moth (Grapholita molesta) to organophosphate insecticides. Pest Mgt. Sci. 57: 822-832.
  • Shearer, P. W., and K. A. Usmani. 2001. Sex-related response to organophosporus and carbamate insecticides in adult Oriental fruit moth, Grapholita molesta (Busck). Pest Mgt. Sci. 57: 822-826.
  • Usmani, K. A., and P. W. Shearer. 2001. Topical pheromone trap assays for monitoring susceptibility of male Oriental fruit moth (Lepidoptera: Tortricidae) populations to azinphosmethyl in New Jersey. J. Econ. Entomol. 94: 233-239. 
  • Shearer, P. W. 2000. Pyridaben baseline assays for adult female European red mite (Acari: Tetranychidae) and eggs. J. Ag. & Urban Entomol. 17: 65-69. 
  • Wilson, M., P. Nitzsche, and P. Shearer. 1999. Entomopathogenic nematodes to control black vine weevil (Coleoptera: Curculionidae) on strawberry. J. Econ. Entomol. 92: 651-657. 
  • Shearer, P. W., and V. P. Jones. 1998. Suitability of selected weeds and ground covers as host plants of Nezara viridula (L.) (Hemiptera: Pentatomidae). Proc. Hawaiian Ent. Soc. 33:75-82. 
  • Gaugler, R., M. Wilson, and P. Shearer. 1997. Forum Article: Field release and environmental fate of a transgenic entomopathic nematode. Bio. Control. 9: 75-80. 
  • Varella, L. G., P. W. Shearer, V. P. Jones, H. Riedl, and S. C. Welter. 1997. Monitoring of insecticide resistance in tentiform leafminer, Phyllonorycter mespiella (Lepidoptera: Gracillariidae) in four western states. J. Econ. Entomol. 90: 252-260. 
  • Shearer, P. W., and V. P. Jones. 1996. Suitability of macadamia nut, Macadamia integrifolia (Maiden and Betche) as a host plant of Nezara viridula (L.) (Hemiptera: Pentatomidae). J. Econ. Entomol. 89: 996-1003. 
  • Shearer, P. W., and V. P. Jones. 1996. Diel periodicity of Nezara viridula (L.) (Hemiptera: Pentatomidae) feeding behavior. Environ. Entomol. 25: 599-602.
  • Shearer, P. W., V. P. Jones, & H. Riedl. 1995. Diel periodicity and circadian control of oviposition by Cryptophlebia illepida Butler (Lepidoptera: Tortricidae). Environ. Entomol. 24: 1229-1233.
  • Shearer, P. W., and H. Riedl. 1994. Comparison of two pheromone-trap assays for monitoring insecticide resistance of Phyllonorycter elmaella (Lepidoptera: Gracillariidae). J. Econ. Entomol. 87: 1450-1454.
  • Shearer, P. W., L. Varella, H. Riedl, S. C. Welter, and V. P. Jones. 1994. Topical pheromone-trap assay for monitoring insecticide resistance of Phyllonorycter elmaella (Lepidoptera: Gracillariidae). J. Econ Entomol. 87: 1441-49.
  • Riedl, H., W. W. Barnett, J. F. Brunner, B. A. Croft, P. W. Shearer, and P. H. Westigard. 1992. Current status, monitoring and management of insecticide and miticide resistance on deciduous tree fruits in the Western United States. Acta Phytopathologica et Entomologica Hungarica. 27:535-544.
  • Riedl, H., and P. W. Shearer. 1991. Double leaf disk residue assay for assessing the toxicity of repellent acaricides to spider mites (Acari: Tetranychidae). Exp. Appl. Acarol. 11:149-157.
  • Croft, B. A., P. W. Shearer, G. J. Fields, and H. W. Riedl. 1990. Distribution of Metaseiulus occidentalis (Nesbitt) and Typhlodromus pyri Scheuten (Parasitiformes: Phytoseiidae) in apple orchards of the Hood River Valley, Oregon. Can. Ent. 122: 5-14.

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