Hi - I want to use more beneficial insects this year in my garden. I realize I cannot spray insecticides as I do that but wondering what if any impact fungicides have on insects?
I remember seeing some data on this. I will try to find it, but I have decades of notes to look through.
Do an internet search on UC IPM Bee Precaution Pesticide Rating database. You can enter the fungicide name and see if there are any risks to the different bees. Some fungicides when used alone pose no risk, but Daconil, which I don’t use because of eye damage risk, may cause some harm, depends if it is mixed with other pesticides. Certainly more research is needed on this topic.