Abstract
Field expts. with benzene hexachloride, methoxychlor, aldrin, chlordan, parathion, and acid lead arsenate indicated that the petal-fall application was of little value in control, excepting where lead arsenate was used. Benzene hexachloride, aldrin, and parathion gave 94% or more reduction of larvae in drop peach fruits, due primarily to the killing of the immature stages in the fruits. Young larvae were more readily killed than mature larvae. In lab. tests parathion and dieldrin killed 100% of the beetles within 3 days when used at 4 oz. technical material/100 gals. of water.

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