I have now lost two Aerogrow crops to aphids. The first was a 7-pod Herb kit, and despite hearing that aphids don't like mint, it didn't seem to help. I cleaned the unit very well and didn't seem to have any aphids around. I then planted a 7-pod cherry tomato and that chili kit that got completely overrun by aphids - even worse than the first one. As before, I tried rinsing the plants under water, using an anti-aphid soap spray, etc. I ended up dumping this one as well. This time, I left the (dry) aerogrow and have not seen any evidence of aphids. I have other live plants both inside and outside the house that have no aphids - they only seem to like the aerogrow!
I am about to start another 7-pod cherry heirloom cherry tomato kit and looking for any suggestions to prevent aphids from coming back. Are there other plants I should put near the garden? Are their sprays or pestsripts that will keep them away?