How can I stop the cycle of aphids?
I will be removing peas that are the home of aphids in a wee or two, and replacing with tomatoes. Are there any organic steps can I take between crops to prevent the aphids from making my tomatoes their home? Should I treat the soil?
When I started my small square foot garden, I placed it in a spot that previously had aphid/white fly infested roses. I thought by removing the roses, the bugs would disappear, but they haven't. I didn't know much about gardening, bugs, and such when I started... When I put the bed in, I added fresh compost, peat, etc. So I know the soil mix is mostly healthy--I even had decent crops last summer. I understand that aphids love a nitrogen rich environment, and have switched from Miracle Gro to a fish emulsion fertilizer, but this hasn't stopped them...
Thanks in advance for the advice.