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Warning: The information in this archived item was not confirmed with the appropriate National Plant Protection Organization and is provided solely for informational purposes. Please use this information with caution.

Subject: Poplar shoot borer (of Europe) reported in Washington State, USA.
Date posted: November 01, 2001
Source: Canadian Food Inspection Agency (CFIA)
Miller, W.E. and E.H. LaGasa 2001. Proc. Entomol. Soc. Washington 103 :1020-1022
see also Emmet & Heath 1992, Zhang 1994, Karsholt & Razowski 1996.
The European poplar shoot borer,Gypsonoma aceriana (Duponchel) (Lepidoptera: Tortricidae), has recently been reported in King and Pierce counties, Washington State, USA. It is a significant pest of Populus spp. and their hybrids in plantations and tree nurseries in Europe. The young larva feeds first as a leafminer, then overwinters in crevices on host bark and feeds the following spring in branch terminals as a shoot borer. This insect has been considered a potential pest on dormant plant material of Populus spp. and their hybrids originating from off-continent (Europe). The European distribution ranges from Ireland and the United Kingdom north to Sweden and east to Russia. A related insect, the cottonwood twig borer Gypsonoma haimbachiana, occurs in eastern Canada, i.e., Ontario; Quebec [Prentice 1965 (1966), Nystrom & Britnell 1994, Handfield 1997].

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