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Horn Flies and Cattle
University of Kentucky — Horn flies are small (3/16 inch), dark gray, blood-sucking flies that stay on cattle almost continuously. Both males and females are blood feeders that spend most of their time on the shoulders and backs of cattle. During extremely hot weather or ...More…
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Managing Pyrethroid-Resistant Horn Flies
University of Kentucky — Development of insecticide resistance in a pest, such as the horn fly, is a selection process similar to that used by cattlemen to improve herds. Animals with undesirable traits are carefully culled, the best stock are kept. By the repeated use ...More…
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Horn Flies and Cattle
University of Kentucky — Horn flies are small (3/16 inch), dark gray, blood-sucking flies that stay on cattle almost continuously. Both males and females are blood feeders that spend most of their time on the shoulders and backs of cattle. During extremely hot weather or ...More…
-
Managing Pyrethroid-Resistant Horn Flies
University of Kentucky — Development of insecticide resistance in a pest, such as the horn fly, is a selection process similar to that used by cattlemen to improve herds. Animals with undesirable traits are carefully culled, the best stock are kept. By the repeated use ...More…