Further Experiments with Dichloroethyl Ether for Plum Curculio Control

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Abstract
In expts. in commercial Elberta peach orchards near Fort Valley, Ga., in 1942, 1943, and 1944, the effect of 2 applications of dichloroethyl ether on the soil under the trees for control of the plum curculio, Conotrachelus nenuphar, was not significantly different from that resulting from the regular schedule of 3 Pb arsenate sprays on the fruit. No injury to vegetation under the spread of the trees or to any part of the trees could be discerned from the application of dichloroethyl ether. However, the Pb arsenate, with safener added and applied according to the regular schedule, caused severe foliage injury and heavy defoliation, some budwood injury, and in 2 of the 3 yrs. a little spray burn on the harvested fruit.

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