The Whitlingham Bird Report for 2023 is now available to download from the Bird Reports page or from here

NORWICH: Aphids on Walnut

Late September 2022

Earlier in the year I had seen Large Walnut Aphids, Panaphis juglandis, on the upperside of some Walnut leaves. There is however a second species, Small Walnut Aphid (Chromaphis juglandicola), which I hadn't found, until now. It really was tiny, so I might well have just overlooked them in the past. There was a bonus on the same tree, with my first alate (winged adult) Panaphis juglandis.




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