Fact Sheet Written by:
Robert W. Barker, Professor of Entomology
Bill Stacey, NE District Extension Director
Russell Wright, Professor of Entomology / Dept. Head
And Provided by
Oklahoma State University
The beef cattle industry in Oklahoma loses millions of dollars annually due to external parasites. These losses result from reduced performance due to blood loss, irritation and annoyance. Indirectly, diseases affecting cattle, dogs, and humans may be transmitted by external parasites of beef cattle. Flies, ticks, and lice are major pests of cattle. Several species within each group of parasites exist and because of their seasonal occurrence, external parasite control is a year round consideration. Proper identification is necessary for determining the appropriate treatments. Control should be based on economic thresholds when possible. Timely applications of recommended insecticides should improve control efforts. Some pest problems may also be reduced by avoiding: 1) the introduction of infested animals into the herd; 2) poor nutrition; 3) overcrowding; 4) sloppy feeding and watering of animals; and 5) inadequate manure handling. Elimination of fly-breeding sites around feed lots or premises reduces filth flies, (houseflies and stable flies).
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