Abstract
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 of FCB for at least 12 days after application. This reduction resulted in a 25–79% increase in yields compared with untreated bags.
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