Posted: 13/11/2016 at 13:47
The Winter wash I use is a natural insecticide made from plants. It kills off overwintering aphids and their eggs without damaging anything else. Only trouble with it for us, is that it needs to be sprayed in winter and then again in March, on a windless day. We never have windless days here!
One further point, you may have not noticed, but I'll bet that there was a stream of ants going up the trees to those curled leaves. Might be worth putting a grease band around the trunk to stop them. They farm the aphids for their honeydew. Sooty mould grows on the honeydew they miss.
Last edited: 13 November 2016 13:49:25