2011 Peace Canola Survey J.Otani1 1 Beaverlodge Research Farm, Agriculture & Agri-Food Canada, P.O. Box 29, Beaverlodge AB, T0H 0C0,
[email protected]. 2 Fort Vermilion Research Farm, Agriculture & Agri-Food Canada, P.O. Box 126, Fort Vermilion AB. 3 Smoky Applied Research and Demonstration Association, Falher AB. 4 Saskatoon Research Centre, Agriculture & Agri-Food Canada, 107 Science Place, Saskatoon SK. The 2011 Annual Peace Canola Survey was completed by Agriculture & Agri-Food Canada staff based at Beaverlodge, and Fort Vermilion plus SARDA4 staff based in Falher, Alberta. A total of 155 fields were surveyed at flowering stage throughout the BC and Alberta Peace in 2011. Sweep-net sampling was conducted by performing 50 - 180° sweeps per canola field (N=8 B. rapa + 144 B. napus varieties) on the following dates in these areas: • July 6 near Fort Vermilion, LaCrete, High Level. • July 7 near Fairview, Grimshaw, Dixonville, Manning, Hawk Hills, Falher, Whitemud Crossing, Valleyview, High Prairie. • July 13 near St. Isidore, Nampa, Jean Cote, Guy, High Prairie. • July 19 near Beaverlodge, Halcourt, Rycroft, Dunvegan, Fairview, Hines Creek, Spirit River, Woking, LaGlace, Valhalla, Dawson Creek, Rolla, Clayhurst, Cecil Lake, Rose Prairie, Montney, Fort St. John, Baldonnel, Farmington. • July 20 near Wanham, Codesa, Eaglesham, Teepee Creek, Sexsmith, Grande Prairie, Bezanson, Spirit River, Blueberry Mountain, Hythe, Huallen, Wembley. Four canola pests were present in the 2011 samples but all occurred in low numbers at flowering: 1. Lygus bug (Miridae: Lygus spp.) populations ≥5 lygus bugs per 10 sweeps were observed in only five fields surveyed (N=152 fields) and very few nymphs were present.