Comparison of soybean looper (Lepidoptera: Noctuidae) populations in soybean and cotton soybean agroecosystems.

Reference Report for IND86057705

Title:	Comparison of soybean looper (Lepidoptera: Noctuidae) populations in soybean and cotton soybean agroecosystems.
Authors:	Beach, R.M., Todd, J.W.
Source:	J. Entomol. Sci. 1986, 21(1):21-25
Abstract:	In 1982-84, larval populations of Pseudoplusia includens were sampled from soyabean fields in southern Georgia, USA. Fields were sampled from 2 types of areas: those in which cotton and soyabean were both grown and those in which soyabean was grown in the absence of cotton. The average larval density during the 3-year period ranged from 0.5 to 93.9 larvae/50 sweeps in cotton-soyabean areas and from 0.0 to 7.1 larvae/50 sweeps in soyabean-only areas. Larval populations were significantly larger on soyabean in cotton-soyabean areas than in soyabean-only areas on the majority of sampling dates throughout the study. The results of surveys indicated that soyabean fields planted near cotton fields were at greater risk of experiencing economically-injurious larval populations of the pest.

Funded by the USDA-ARS. Developed by the USDA-ARS SoyBase and Legume Clade Database group at the Iowa State University, Ames, IA

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