Suppression of Four Hardwood Defoliators by Helicopter Application of Concentrate and Dilute Chemical and Biological Sprays1

Author: WALLNER WILLIAM E.  

Publisher: Entomological Society of America

ISSN: 1938-291X

Source: Journal of Economic Entomology, Vol.64, Iss.6, 1971-12, pp. : 1487-1490

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