I am on the third floor of an apartment building and started a garden in pots last year, somehow I ended up with aphids. I think that I’ve tried everything to remove them Insecticidal soap, ladybugs even removal by hand. Nothing seemed to work. This year I bought all new soil and plants and once again have found a couple aphids specifically on my sangria charm petunias. Being on a deck I can’t use a hose to blast them.. I am using the Safer brand insecticidal soap but it doesn’t seem to keep them away. Does anyone have any tips for saving my plants? thanks!