Oriental Chestnut Gall Wasp

Oriental Chestnut Gall Wasp , Arboriculture > Forestry , Forest Research

Forest Research

Dr Suzanne Sancisi-Frey, Forest Research

Dryocosmus kuriphilus is a species of gall wasp native to China that is commonly
referred to as the oriental chestnut gall wasp (OCGW). In June 2015 it was discovered
for the first time in Britain. OCGW induces galls (distinctive growth irregularities)
to form on sweet chestnut trees (Castanea sativa) which can result in a reduction
of growth and fruiting. At this time, we believe that OCGW is the only insect that is
forming galls on Sweet Chestnut.

Forest Research

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