Particle films for organic or conventional prevention of Asian citrus psyllid

This project will assess the efficacy of a non-pesticidal approach to preventing Asian citrus psyllid in commercial citrus groves in California. Particle films work as optical “repellants” by hiding the leaf colors to which psyllids are naturally attracted. A white particle film is commercially available, and a red film with better efficacy against psyllids is in development. These products have reduced ACP populations more effectively than insecticides and improved plant growth in Florida. This project will test these products on a field scale in psyllid-endemic areas of California. This project will lead to an improved management option to prevent psyllids from entering commercial groves.