Decline of the Chestnut Gall Wasp Population, Dryocosmus kuriphilus YASUMATSU (Hymenoptera : Cynipidae) after the Establishment of Torymus sinensis KAMIJO (Hymenoptera : Torymidae)
Author's Organization:Fruit Tree Research Station Fruit Tree Research Station Fruit Tree Research Station (Present address)National Institute of Agro-Environmental Sciences Fruit Tree Research Station