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ARS Home » Northeast Area » Kearneysville, West Virginia » Appalachian Fruit Research Laboratory » Innovative Fruit Production, Improvement, and Protection » Research » Research Project #443417

Research Project: Developing Effective Plum Curculio Management Regimes for Apple Crops Using Currently Available Tools

Location: Innovative Fruit Production, Improvement, and Protection

Project Number: 8080-21000-032-042-T
Project Type: Trust Fund Cooperative Agreement

Start Date: Sep 1, 2023
End Date: Aug 31, 2026

Plum curculio is a persistent native pest that has very few effective management options. Here, ARS is proposing to develop more effective tactics based on combining an ultra-low rate of Surround (kaolin clay) with labelled insecticides to provide increased insecticide efficacy and behavioral repellency against this pest. The objectives of this project are to: 1) Evaluate the efficacy and residual activity of single compound insecticides alone and in combination with a low rate of Surround against plum curculio (PC) in laboratory, semi-field and field experiments; 2) Evaluate efficacy of full block and border sprays with the two most effective insecticide combinations; and 3) Share results from these studies to extension personnel and regional growers.

Field trials will be conducted assessing the efficacy of labelled insecticides for plum curculio management alone and in combination with a low rate of Surround (kaolin clay). Injury will be assessed for each treatment every two weeks until normal late-June fruit absiccion occurs. Additionally, efficacy and influence will be evaluated on mobility in laboratory trials using Ethovision using colony-reared insects.