Wednesday, 7 March 2012

Pyrocantha pest

We have a pyrocantha growing against the wall at the front of the house. It has developed sort of dry blisters on the leaves which are going brown and dropping. Inside the blister are some little dots I suspect are aphids. My neighbour's shrub is showing similar signs. I sprayed liberally with a mild solution of washing up liquid, my usual anti-aphid weapon, and there does seem to be some improvement. Don't know what this pest is called. Any ideas?

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