Delayed recognition of the European poplar shoot borer, <i>Gypsonoma aceriana</i> (Duponchel) (Lepidoptera: Tortricidae), in Canada


  • Leland M. Humble Natural Resources Canada Canadian Forest Service Pacific Forestry Centre 506 West Burnside Road Victoria, BC V8Z 1M5 University of British Columbia Department of Forest Sciences Forestry Sciences Centre Vancouver, BC V6T 1Z4
  • Jeremy R. deWaard University of British Columbia Department of Forest Sciences Forestry Sciences Centre Vancouver, BC V6T 1Z4 Royal British Columbia Museum, Entomology 675 Belleville Street Victoria, BC V8W 9W2
  • Meghan Quinn Natural Resources Canada Canadian Forest Service Pacific Forestry Centre 506 West Burnside Road Victoria, BC V8Z 1M5 Current address: Urban Forestry, Parks Recreation and Forestry 355 Lesmill Road Toronto, ON M3B 2W8


Gypsonoma aceriana, European poplar shoot borer, Populus spp., DNA barcoding, CO1, nonindigenous species detection


The long-term presence of Gypsonoma aceriana (Duponchel) (Lepidoptera: Tortricidae: Olethreutinae), a European shoot—boring pest of poplars, was discovered in British Columbia during examination of cytochrome c oxidase 1 sequences of voucher specimens deposited in the Canadian Forest Service, Pacific Forestry Centre, arthropod reference collection. Originally identified as a species of Epiblema, G. aceriana was first recovered in BC in 1980, almost 20 years before it was reported in Washington State. DNA barcodes from both larval and adult collections are demonstrated to be conspecific with an adult collection from Great Britain. Preliminary surveys of early and late instar larval feeding damage in southwestem British Columbia demonstrate that this shoot borer is established on southem Vancouver Island and throughout the lower mainland of the province. The eastem-most collections made to date include locations near Yale in the Fraser Canyon, from the lower Coquihalla River watershed and from Hope.


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