Spinosad, which is biological, is a great produce for many bugs, caterpillar, ants, aphids. Its a great product. It also could be beetles. Have you checked for feeders at night? Asiantic Garden Beatles (also know as those fuckers) feed at night, you can pick them off but they burro into the ground when you touch then. Rotenone is a powder that will stick to the leaves. It is organic but I would not use it in flower. It is an old product that I have use when needed on vegetables and I have know reason to think that it could not be used in veg.
