WAC 16-470-420
WAC 16-470-420. Chestnut—Pests
The following are designated chestnut pests: Chestnut bark disease ( Endothia parasitica ); large chestnut weevil ( Curculio caryatrypes ); small chestnut weevil ( Curculio sayi ); nut curculio ( Conotrachelus carinifer ); and the oriental chestnut gall wasp ( Dryocosmus kuriphilus ).