Malathion Residues in the Milk of Dairy Cows Treated for Horn Fly Control1
- 31 March 1959
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 52 (2) , 341
- https://doi.org/10.1093/jee/52.2.341
Abstract
A series of trials were conducted to determine the usefulness of malathion for control of the horn fly, Siphona irritans, on dairy cattle. Hand application of 4% malathion dust at a rate of 2 ounces per cow resulted in malathion residues in the milk of not more than 0.01 ppm 12 to 60 hours after treatment. Similar treatment with 10% malathion dust and a 0.5% malathion spray application resulted in significantly greater residues. The 3 formulations of malathion did not appear to differ markedly in their effect on the horn fly. Useful levels of fly control for a period of 9 to 14 days were obtained.This publication has 3 references indexed in Scilit:
- Insecticide Residues, Colorimetric Estimation of Malathion Residues in Animal ProductsJournal of Agricultural and Food Chemistry, 1958
- Pesticide Residues, Malathion in Milk and Fat from Sprayed CattleJournal of Agricultural and Food Chemistry, 1956
- Effectiveness of Cattle-Rubbing Devices and Hand Dusting for Horn Fly ControlJournal of Economic Entomology, 1954