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Reference Report for IND83080988
Title:Green cloverworm (Lepidoptera: Noctuidae) populations in conventional and double-crop, no-till soybeans Plathypena scabra.
Authors:Sloderbeck, P.E., Yeargan, K.V.
Source:J. Econ. Entomol. 1983, 76(4):785-791
Abstract:In studies in Kentucky, populations of Plathypena scabra (F.) were monitored for 3 years (1978-80) in conventionally tilled soyabean crops planted on different dates and in crops planted without tillage into the stubble left after the harvest of wheat to determine whether egg or larval populations were affected by the different planting practices. Oviposition occurred at the study site throughout the soyabean growing season; however, peaks in egg numbers and resultant larval populations were asynchronous in crops planted on different dates. Larval populations usually increased rapidly as the crops began to flower, peaked during full bloom to late pod-set and began to decline during early pod-fill. A higher level of egg or larval mortality was observed in double-crop no-till soyabeans than in conventionally planted soyabeans; however, no consistent relationship was detected between this higher level of mortality and the incidence of parasites or pathogens.






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