Wheat kernels infested with immature stages of rice weevil, Sitophilus oryzae, were mixed with wheat treated with 300 ppm diatomaceous earth (DE). Mortality of emerged adults was 56 -90% at 22°C and > 90% at 27 and 32°C. Exposure to DE suppressed F1 progeny by 60 - 90% relative to untreated controls.
Species 1: Coleoptera Curculionidae Sitophilus oryzae (rice weevil)
Keywords: control, dust
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