Horn Flies

Fly control near livestock facilities

The stable fly and house fly are the major insect pests at confined livestock units. FULL STORY »

The cow-calf manager: Fly control to keep the flies from winning

Production losses to the US beef industry have been estimated in the $700 million dollar range from horn flies alone. FULL STORY »

Horn flies and cattle

Horn flies are small, dark gray flies that feed on cattle and occasionally horses. Both sexes are blood feeders, taking 20 or more blood meals each day with their stiff needle-like mouthparts. FULL STORY »

That bites

One horn fly can leave 20 to 30 bites on an animal. Multiply that by 200 flies per animal and you not only have a nuisance, but also a loss in performance. FULL STORY »

Cattle Fly Control

As the grazing season progresses, fly control will begin. The easiest answer is to do nothing and hope that horn fly populations remain less than 100 per side of the animal. Several research studies, including those conducted in North Dakota, indicate that economic losses in cow and calf productivity occur when the biting horn fly population is greater than 200 flies per animal. FULL STORY »

Dealing with horn files

Not only are horn flies a nuisance to beef and dairy cattle, they can cost producers money. FULL STORY »

Horn flies on cattle: Biology and management

Horn flies are an important blood feeding insect on range and pasture cattle in Montana. They are responsible for production losses in mature cattle and lower weaning weights in calves. Producers can minimize these losses by using one of the control tactics listed in this guide. FULL STORY »

Reducing flies helps keep herds healthy

Flies are annual summer pests of cattle and other livestock. Controlling them could mean happier, healthier and heavier livestock, said Lee Townsend, extension entomologist with the University of Kentucky College of Agriculture. FULL STORY »

Fly control around concentrated animal facilities

Flies may be a nuisance or be of economic concern due to transmission of disease, reduction in growth or production. FULL STORY »

Treating for pest flies on livestock

Flies can affect the performance of livestock such as weight gains. It can also potentially carry pathogens like pinkeye. FULL STORY »

Insect control proves essential in livestock production

Fly season is in full swing, and a Purdue Extension entomologist says insect control is essential as these pests can lead to disease and decreased growth rates in livestock. FULL STORY »

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