Malathion for Control of Chicken Mites on Hens in Wire Cages1

Abstract
Aqueous sprays containing 0.5% and 1.0% actual malathion by volume, respectively, were applied to community-type cages with wooden frame work by means of a power-driven sprayer for the control of the chicken mite, Dermanyssus gallinae (De G.). Both concentrations of malathion provided good control of the chicken mite and, in this instance, of the northern fowl mite, Ornithonyssus sylviarum (C. & F.). Complete control of chicken mites present in individual-type cages constructed entirely of wire was obtained with a single application of 4% malathion dust.

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