I don't have much experience conducting research on grasshoppers. It seems clear that the use of ginkgo berries reduces the frequency of locust outbreaks. When there are no ginkgo berries, the option to choose is to add caustic soda and rock powder. This method effectively controls even the most difficult to control thrips. Please refer to the following:
https://www.youtube.com/watch?v=r1gs8efDlgY&t=4s
