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Horn Fly Resistance to Livestock Ear Tag Insecticides

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Title: Horn Fly Resistance to Livestock Ear Tag Insecticides
Author: Kopp, D.O.; Meyer, H.J.
Description: The 'horn fly' Haematobia irritans, is a serious pest of cattle and causes significant losses in production. Effective control is known to enhance production. Over time, horn flies began to build a resistance to tag insecticides. The objective of the study in this paper was to document and to quantify the levels of pyrethroid resistance in North Dakota horn fly populations. The results were that horn flies that were tested showed a high level of resistance to fenvalerate. These groups were chosen due to their control failure in 1986 and had a previous history of insecticide ear tags. They concluded that they would continue using pyrethroid insecticide ear tags in 1987. If control appears poor, they recommend switching to an alternative control technique such as dust bags, oilers or back rubbers charged with registered organophosphate livestock insecticides.
Date: 1986
Subject: Insects
Pest control
Permalink: http://hdl.handle.net/10365/8091

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