Peter W. Shearer, shearer@aesop.rutgers.edu1, Larry A. Hull, lah4@psu.edu2, Larry J. Gut, gut@msu.edu3, Henry W. Hogmire, hhogmire@wvu.edu4, Atanas Atanassov, atanassov@aesop.rutgers.edu1, Greg Krawczyk, gxk13@psu.edu2, David J. Biddinger, djb134@psu.edu2, Mike Haas, haasm@msu.edu3, and Peter McGhee, mcghee@pilot.msu.edu3. (1) Rutgers University, Rutgers Agricultural Research and Extension Center, 121 Northville Road, Bridgeton, NJ, (2) Pennsylvania State University, PSU Fruit Research and Extension Center, 290 University Drive, Biglerville, PA, (3) Michigan State University, Department of Entomology, East Lansing, MI, (4) West Virginia University, Entomology, WVU-KTFREC, PO Box 609, Kearneysville, WV
Investigators from seven states are participating in a 4-year USDA-CSREES Risk Avoidance and Mitigation Program (RAMP) grant designed to develop and demonstrate reduced-risk arthropod management strategies and tactics for eastern USA tree fruit IPM. Four states included peaches in their studies. The main intent was to eliminate organophosphorus (OP) and carbamate insecticide use and minimize pyrethroid sprays. The project integrated mating disruption, OP-replacement and reduced-risk insecticides, and biological control. Twenty pairs of commercially managed peach blocks were used in this study. At each site, one block or part of a block was designated as the RAMP treatment while an adjoining block was the conventional (CONV) comparison. The project investigators provided the cooperating growers with arthropod management recommendations for the RAMP blocks while growers continued with their traditional IPM programs in the CONV blocks without input from the investigators. The same sites were utilized each year. Results indicate that many major peach arthropod pests can be managed with minimal OPs and carbamate sprays as data revealed no major differences in quality at harvest. However, some problems with scale insects, plum curculio, and Japanese beetles did surface in RAMP blocks. One major overriding factor is the high costs of the RAMP programs, which can cost up to $150 more per acre than CONV management costs. A few RAMP blocks were cheaper to manage but overall, 85% of the RAMP peach blocks were less profitable than conventionally managed blocks in 2004.
Species 1: Lepidoptera Tortricidae
Grapholita molesta (oriental fruit moth)
Species 2: Coleoptera Curculionidae
Conotrachelus nenuphar (plum curculio)
Species 3: Coleoptera Scarabaeidae
Popillia japonica (Japanese beetle)
Keywords: Peach, IPM