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We studied the effects of landscape composition and diversity on parasitism of Helicoverpa armigera eggs (Noctuidae: Lepidoptera) by Trichogramma spp. (Hymenoptera: Trichogrammatidae) in cotton fields in northern China. Sentinel eggs of H. armigera were exposed to parasitoids for a 48h time periods in experiments conducted in 2012–2013, resulting in parasitism rates ranging from 0 to 38.8%. Trichogramma...
Conservation biological control (CBC), often described as the field of biological control with the greatest potential for use in developing world agriculture, has received only marginal, scattered research attention outside Western Europe or North America. As a consequence, pesticide overuse remains rampant in many cropping systems, while in others, a complete lack of safe, affordable and effective...
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