1998 ESA North Central Branch Meeting Abstract
74 A SURVEY OF INSECTICIDE USE FOR CONTROLLING ARTHROPOD PESTS OF LIVESTOCK IN NEBRASKA. John B. Campbell, D. J. Boxler, and S. T. Kamble, Department of Entomology, University of Nebraska, Lincoln, NE 68583
In this three state survey, 4,408 livestock producers responded. This represented a 47.66% response to the questionnaire. Based on pounds of active ingredient, famphur, trichlorofon, fenthion, permethrin and stirofos were the insecticides used the most in Nebraska. In North Dakota, famphur, permethrin, dichlorvos, phosmet and methoxychlor were the insecticides with the highest use. In Wyoming, famphur, stirofos, coumophos, fenthion and trichlorfon were the insecticides with the greatest use. However, in all three states, invermectrin, a broad spectrum (internal and external parasiticide) was used most frequently. It is registered for use on several animal species and has a very low active ingredient dose rate. Dust bags and oilers that might contain any of several insecticides are used daily (often several times) by cattle for horn fly and face fly control, were generally not listed as animal treatments by the respondents. They just noted their use but didn't indicate how much was used per animal per season. In the premise treatments section, most respondents listed baits in addition to area sprays. The survey instrument didn't consider baits as a premise treatment but a separate method for fly control. A somewhat surprising fact revealed by the survey was that 36.5% of Nebraska livestock producers and 53.5% of the North Dakota respondents did not use insecticides. The Wyoming document only recorded insecticides used and not the percent of producers who didn't use an insecticide.
This paper will be presented on Monday.
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