Anthocoris nemorum (Heteroptera: Anthocoridae) as predator of cabbage pests voracity and prey preference

作者：Simonsen Marie Louise Rugholm^*; Enkegaard Annie; Bang Camilla Nordborg; Sigsgaard Lene

来源：Entomologica Fennica, 2010, 21(1): 12-18.

Laboratory experiments were performed with adult female Anthocoris nemorum (Linnaeus) (Heteroptera: Anthocoridae) at 20 degrees C +/- 1 degrees C, L16:D8, 60-70% RH to determine voracity and preference on cabbage aphids (Breyicoryne brassicae L.) (Hemiptera: Aphididae), diamondback moth larvae (Plutella xylostella L.) (Lepidoptera: Plutellidae) and Western flower thrips (Frankliniella occidentalis Pergande) (Thysanoptera: Thripidae) (model species for cabbage thrips (Thrips angusticeps Uzel) (Thysanoptera: Thripidae)). When offered individually, A. nemorum readily accepted all three species with no significant differences in consumption. When aphids and moth larvae were offered simultaneously, A. nemorum showed preference for the latter (numbers eaten and biomass consumed). When aphids and thrips were offered together, A. nemorum preferred thrips in terms of numbers eaten but preferred aphids in terms of biomass consumed. The results showed that A. nemorum is a voracious predator of B. brassicae, P xylostella and F occidentalis and can therefore be considered as a potential candidate for biological control in cabbage.

• 出版日期2010-5-27