Development of biological control tactics for use in an IPM program for multiple thrips species in Ontario greenhouse crops

Lead Applicant: Rose Buitenhuis

Research Priority: Plant Health & Protection Projects

Program Type: Tier 1

Funding Cycle: 2022/2023

Research Centre: NA

Research Summary: Biological control of western flower thrips (WFT) is the cornerstone of integrated pest management (IPM) programs in greenhouse crops. However, for the last 6-7 years, the industry reports an increase in onion thrips (OT) and failure of current thrips IPM programs. As a result, growers have resorted to pesticides, which can lead to pesticide resistance and negatively affect workers and the environment. Research started in 2019 to develop an IPM strategy for effectively controlling both thrips species. This project builds on the results to evaluate biocontrol products and practices with demonstrated efficacy against both OT and WFT in laboratory and greenhouse trials and to share a comprehensive systems approach to thrips IPM with the industry.]