Aphids are back, let loose on my garden. I was not impressed upon discovering this. I asked them nicely to go chew someone else's garden. They ignored me. Rain didn't wash them away. They continued to multiply on my lovely purple sprouting broccoli, to congregate on my snow peas and nestle in my snapdragons. Enough was enough, I sprayed. I used to make homemade organic sprays from chillis and garlic and the like. They never worked. This time I went for Pyrethrum, the big guns, but made sure no bees were buzzing in the balcony garden at the time. Seems to have worked, for now. I also bought a few more of these, to keep them away. Fingers crossed.