Project Number: 3020-43000-034-034-R
Project Type: Reimbursable Cooperative Agreement
Start Date: Sep 1, 2023
End Date: Aug 31, 2026
This project includes the following objectives: Objective 1. Optimize rapid test for detecting and monitoring phosphine resistance on the Great Plains and compare the test to commercial standard test. Objective 2. Apply best rapid phosphine tolerance/resistance test to food facilities on Great Plains and screen for resistance among multiple stored product insects. Objective 3. Deploy suite phosphine resistance management programs to reduce effects of phosphine resistance on food facilities. Objective 4. Transfer knowledge to and engage stakeholders in implementing effective solutions to overcome phosphine resistance.
We will use a combination of laboratory, semi-field, and field experiments to develop a rapid screening test for phosphine resistance among food facilities on the Great Plains, screen food facilities for problems with resistance, and then develop a comprehensive recommended protocol for responding to resistant populations through a variety of off-the-shelf IPM tactics. This will include serial exposure assays to phosphine to develop discriminating exposure times to rapidly test field populations. In addition, long-lasting insecticide netting and aerosols, fumigants, and residual contact insecticides will be employed in concert to overcome resistance in a resistance management program. This project will involve collaborating with local stakeholders for tests at facilities, and also demonstration of tactics in pilot scale mills and warehouses to reduce insect infestation and progeny.