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other orders
blister galls on elm: Physemocecis ulmi
Wanstead Park, 3 May 2005
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other orders |
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blister galls on elm: Physemocecis ulmi
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Wanstead Park, 3 May 2005
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Pimples of about 3mm on the leaf-blades of an elm in the Glade, Wanstead Park. These have been caused by a gall-wasp in the family Eriophyidae |
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