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Classical biological control of Japanese beetle

The Japanese beetle (Popillia japonica) is a pest that feeds on hundreds of fruit tree species, causing considerable damage. In the USA, costs to control the pest exceed $450 million per year. Global regions that climatically support the invasion of the Japanese beetle include central Europe where it is considered a high priority pest. This project is aiming to tackle the spread of the Japanese beetle by exploring the use of the parasitic fly, Istocheta aldrichi, as a classical biological control agent in Switzerland, where it arrived in 2017.

CABI to investigate using parasitic fly as a classical biological control agent against Japanese beetle