The Effect of Grain Moisture Upon Development of the Rice Weevil in Green Corn

Abstract
The rice weevil (Sitophilus oryza (L.)) is known to infest standing corn in the field in Louisiana. It was not known at what maximum grain-moisture level oviposition followed by complete development occurred. Studies conducted over a 2-year period showed oviposition may occur at a grain moisture of 65%. Eggs laid at this stage of corn maturity required 9 days for incubation. Complete development from egg to emergence of the adult required 42 days, and occurred between a grain moisture change from 65% to approximately 25%.

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