Canadian Forest Service Publications

Distribution and life cycle of Rhyacionia buoliana (Lepidoptera: Tortricidae) in the interior of British Columbia. 2003. Heeley, T.; Alfaro, R.I.; Humble, L.M.; Strong, W.L. Journal of the Entomological Society of British Columbia 100: 19-25.

Year: 2003

Available from: Pacific Forestry Centre

Catalog ID: 24367

Language: English

CFS Availability: Order paper copy (free), PDF (request by e-mail)

Abstract

The European pine shot moth, Rhyacionia buoliana (Denis and Schiffermueller), is an exotic shoot-boring insect of hard pines in British Columbia. In 1999 infestations of this pest in native lodgepole pine were reported at a seed orchard in the interior of this province where large numbers of the shoot moth reduced seed production by damaging pollen and cone bearing shoots. Rhyacionia buoliana were recorded on about 80% of the trees in a lodgepole pine seed orchard in June 2000. Pheromone trap catches and weather observations over three years indicated that first, and peak R. buoliana flight occurred when approximately 1000, and 1680 degree-days, respectively had accumulated from January to August (using a threshold of -2.2ºC). We found no evidence of a serious threat to natural lodgepole pine strands from R. buoliana damage. Head capsule measurements confirmed the presence of six larval instars in R. buoliana in BC.

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