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Oak tree growth
Observed: 24th May 2013 By: Fun Guy
Added: 25th May 2013
This oak is in a pot in my garden. It has a lot of these berry like things on the underside of leaves and some on stems/twigs. The largest are about the size of a pea and in appearance look like unripe blackcurrants (without the little dry bit at the bottom). I've noticed there are some also on a large mature oak in my garden. I am assuming it is a caused by a parasite or insect. Any information appreciated.