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ARS Home Pacific West Area Wapato, Washington Temperate Tree Fruit and Vegetable Research Research





- Cooper, William - Rodney
- 2023
- 2022
- 2021
- Crop Protection & Quarantine (304)

Research Project: Field Testing of Minor Use Pesticides **Location:
                            Temperate Tree Fruit and Vegetable Research** 2021 Annual Report **Objectives**
                                

Provide efficacy, phytotoxicity and yield data and residue samples for analyses to support the registration or re-registration of minor use pesticides for the control or modification of behavior of pests through Interregional Project No. 4. [NP304, C3, PS 3B] **Approach**
                                

Determine needs for minor use pesticides by consulting producers, processors,
fieldmen, or their associations. Select pesticides for testing based on needs,
efficacy, economics, and safety to the crop and its environment. Conduct studies on candidate pesticides in the field, nursery or greenhouse to obtain efficacy,
phytotoxicity and yield data, and residue samples for analyses in accordance with
protocols, standard operating procedures, and good laboratory practices. **Progress Report**
                                

The Interregional Research Project Number 4 (IR-4) is the primary entity in the United States to facilitate registrations of conventional pesticides and bio pesticides on specialty food crops and non-food ornamental horticulture crops. The IR-4 Project at USDA, Agricultural Research Service facility in Wapato, Washington, tested candidate pesticides on eight food crops for residues and efficacy against pests and on 11 ornamentals for crop safety (phytotoxicity) evaluation. Information from these field trials will be used to support petitions submitted by IR-4 Project to the Environmental Protection Agency (EPA) for the registration or re-registration of pesticides for use on minor crops and ornamentals. **Accomplishments**
                                

1. Facilitate registrations of conventional pesticides and bio pesticides. The Interregional Research Project Number 4 (IR-4) is the primary entity in the United States to facilitate registrations of conventional pesticides and bio pesticides on specialty food crops (fruits, vegetables, and nuts) and non-food ornamental horticulture crops (greenhouse flowers, nursery, landscape plants, and Christmas trees). These registrations are necessary to prevent damage to the crops we eat or the plants that enhance our environment. ARS researchers in Wapato, Washington, in collaboration with IR-4 personnel at Rutgers University in New Brunswick, New Jersey, tested candidate pesticides on eight food crops for residues to include two mint, grass, cherry, pear, clover, basil, pea and soybean, as well as efficacy against pests on 11 ornamentals for crop safety (phytotoxicity) evaluation. It was found that levels of residues on food crops of most of the pesticides tested were below the levels established by the Environmental Protection Agency (EPA), and these products were deemed to be safe to use on minor crops. This information will be submitted to the EPA by the IR-4 Project, to enable registrations of needed pesticides for use on minor food crops and ornamentals.


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