A sundew that had a bunch of aphids on its flower stalk was sprayed with the alcohol / water / dish soap solution. The leaves still have their dew and I don't see any aphids. Not sure if they were eradicated or if they found new homes. I sprayed a few other sundews (capensis, mostly) that had aphids. We'll see how that goes. I'm confused about aphids. I though that they laid eggs and required repeated applications of Neem Oil, over time, to kill subsequent generations. But another hobbyist tells me tha they bear live young. He was the same one to try the alcohol / water / dish soap concoction.