On-Animal

Difference between biting and sucking lice

Winter is the prime time for lice populations on beef cattle to increase. As temperatures cool and hair coats grow longer, producers need to be monitoring their livestock. Constant rubbing is a sign or indicator your livestock may have biting … Read More

Keep your cattle comfortable by controlling lice

“Don’t let your comfortable cattle become ‘lousy’ cattle,” urges Dr. Larry Hawkins. Hawkins is referring to the tiny louse, which can inflict major damage on entire herds of cattle during outbreaks in cold weather. “Don’t wait for such outbreaks to … Read More

Strategies to manage lice in dairy cattle

Because lice often are inconspicuous, many dairy producers do not detect them until their cattle begin to show hair loss from the animals’ grooming activities. But by the time the infestation has progressed to this stage, populations of lice are … Read More

Cold weather = perfect temperature for cattle lice

As fall temperatures give way to winter, cattle lice numbers will increase. Cattle lice are insects that thrive in cold conditions. Populations are most noticeable during December, January and February, and they decline during March when temperatures warm. Lice are … Read More

Controlling lice in cattle starts with vigilance

During a recent webinar, a group of large-animal veterinarians discussed the habitual characteristics of lice and ways to help beef and dairy cattle producers manage these troublesome insects. They agreed that knowing the signs and symptoms are among the key … Read More

Lice in dairy cattle

One of the most common is the cattle-chewing louse, Bovicola bovis. This species is about 1/8-in. long when fully grown, has a yellow-brown appearance and is most commonly found on the animal’s neck, back, hips and tailhead. B. bovis are not … Read More

Use anthelmintics strategically to control worms

When it comes to worm control in beef and dairy cattle, what are the most common mistakes that producers make? “Not using anthelmintics strategically, and not monitoring the effectiveness of the products being used,” responded Dr. Tom Yazwinski, professor of … Read More

Cattle deworming strategies

Cattle deworming is very important to reduce internal parasites. Cattle are not only threatened by outside pests like face flies and horn flies but also by internal parasites like lungworms and gastrointestinal roundworms. Anthelmintics—or dewormers—are used to control these internal parasites. Some anthelmintics … Read More

Tips to prevent late-season fly control breakdowns

Horn and face fly numbers can continue to build throughout the summer, which will put pressure on your control programs. Now is a good time to evaluate the pasture fly situation in your herd. Check during the early afternoon on … Read More

The two most impactful flies and how to treat them

With summer upon us, so are the problems associated with fly infestations of cattle. Economic losses occur because flies torment cattle, sucking blood from the animals and spreading diseases such as pinkeye. However, effective control measures can keep fly populations … Read More