The instructions for use of the recommended insecticides are not as comprehensive as the pesticide labels and are intended to be used as guidelines only. Before using any pesticide, READ THE LABEL for more specific instructions. Many insecticides are sold under brand names not listed in this publication. Further information about the biology and control of insect pests of lactating dairy animals can be found in publications ENT 4 "Cattle Backrubbers, ENT 36 "Fly Control Around Dairy Farms", ENT 37 "Insect Pests of Dairy Cattle" and ENT 42 "Dust bags for Cattle Insect Control".
Click here for entfact-12. This document is also available from your County Extension Office.