Abstract

Many chemicals were tested, hath as seed and foliar treatments, for control of the beet leafhopper ( Circulifer tenellus (Bak.)) and consequent reduction in curly top on snap beans grown for seed. Outstanding results were obtained with a foliar spray containing 0.125% Thimet® ( O,O -diethyl S -(ethylthio)- methyl phosphorodithioate) and 4% juice pressed from sugar beets highly resistant to curly top. Good control was also obtained with DDVP, lindane-DDT-Aroclor, DDT, dimethoate, and Thimet separately. The seed treatments were less satisfactory.

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