Potato bugs?
Every three years the farmer who owns the field behind our house plants potatoes. This is a potato year. When the planes fly over this field spraying insecticide our yard gets totally SWARMED with potato beetles. They devour my roses and and other flower they can. I've planted tomatoes and other stuff this year and I'm determined to fight back. How can I fight back without harming my plants? Do not suggest diatomaceous earth, I tried that last time and it did not work. THANK YOU!