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Spring emergence of the crucifer flea beetle, Phyllotreta cruciferae (Goeze), was investigated in 2003 and 2004 in relation to habitat type, vegetative cover, and soil temperature in the Mixed Grassland Ecoregion of western Canada. Although total emergence extended over 10–12 weeks, emergence patterns were quite similar in both years with limited emergence for several weeks before and after a large...
The false chinch bug (FCB), Nysius raphanus (Howard) (Hemiptera: Lygaeidae), is one of the most important pests on the Brassicaceae plants in Colorado (USA), commonly in large numbers on developing canola, particularly after flowering. Aggregations occur in breeding trials on bags used to control pollination. Sprays of permethrin, but not pyrethrins, applied to the bags significantly reduced numbers...
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