Ratios for Predicting Field Populationis of Soybean Insects and Spiders from Sweep-net Samples

Author: Marston Norman   Davis Darrell G.   Gebhardt Maurice  

Publisher: Entomological Society of America

ISSN: 1938-291X

Source: Journal of Economic Entomology, Vol.75, Iss.6, 1982-12, pp. : 976-981

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