I'm going to try some cinnamon around my tomato plants, the ants are bringing in the aphids. Almost any kind of poison is available here, unfortunately I think. Some of the ones I remember from my youth that have been banned in the US for a long time are still available in agricultural stores. I try not to go crazy with them but some of the bugs here are just overwhelming, it is the tropics. Mainly the million different types of ants, I really hate ants. We have small ones that eat electrical insulation and also bite. The bite swells and itches for days, hateful things. I have the exterminator come in regularly to put powder in the outlets because I don't want them to short out my wiring. Getting rid of them in the garden is impossible but I fight them when I can do it without endangering my pets. I'm with you Melissa, I think some of these bugs come down with the rain, they just suddenly appear.