Laboratory and Field Tests Against Mites and Lice Attacking Poultry

Abstract
In laboratory tests against the northern fowl mite Ornithonyssus sylviarum (C. & F.), ronnel (Korlan) was more toxic than malathion or barthrin. In spray tests on infested birds, dicapthon and ronnel were more effective than malathion, barthrin, or diethyltoluamide. The chicken mite Dermanyssus gallinae (DeG.) was far more difficult to kill than the northern fowl mite. In field tests on turkeys infested with the northern fowl mite and on chickens infested with the chicken body louse Menacanthus stramineus (Nitz.), excellent results were obtained with both ronnel and malathion.
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