I had a small catipiller problem and aphids I used 2 tablespoons of canola oil 1 tablespoon of dawnndish soap and mixed into a gallon sprayer. Soaked all plants and it killed all aphids and stopped the catipillers from eating the plants and I did it while they were budding. I let it dry for a half hour then soaked them again with clean tap water. Didn’t hurt the buds and got ride of pest problem. Don’t know if this will help someone told me to use neem oil but I didn’t want to search around For it. If u do try it out just make sure there is no direct sun on the plants or the oil will burn the flower and leafs. And make sure u rinse everything off good luck and happy harvest