Using nematodes for Japanese beetle control
I've been reading about using beneficial nematodes to control japanese beetles in my raspberries. I seem to have an extreme amount and can spend hours every day picking them off. I have already eliminated many other plants that attract them in my yard. Is this something that makes sense for both Minnesota and my raspberry bushes? If so, when is the best time to apply them. Please advise. I live in Shoreview. Thank you.
Nematodes are not recommended as a control measure because they do not last long in the environment, are expensive, of limited efficacy. Low impact
chemical controls are recommended.