The Asian longhorned tick (Haemaphysalis longicornis) is the primary vector for Theileria orientalis ikeda, and it transmits the organism through its saliva while feeding on cattle. This disease has been reported in multiple states, including Alabama, Arkansas, Georgia, Iowa, Kansas, Kentucky, Maryland, Missouri, New York, North Carolina, Pennsylvania, Tennessee and West … [Read more...]
Start NOW to reduce barriers to heartworm prevention
A growing body of evidence-based protocols can help more pets get the care they need, while also supporting practice efficiency and revenue, writes Kristin Jankowski, VMD, CCRP, and Jenni Rizzo in this article. The key lies in understanding and removing barriers at every step of care: prevention, diagnosis and treatment. Consider this article as a reminder and resource to … [Read more...]
BIVI secures emergency use authorization for Ivomec (ivermectin) 1% for NWS
Under the FDA’s Emergency Use Authorization, IVOMEC (ivermectin) 1% Injection is authorized for the prevention of infestations caused by NWS (Cochliomyia hominivorax) larvae (myiasis) when administered within 24 hours of birth, at the time of castration, or at the appearance of a wound in cattle, except for female dairy cattle producing milk for human consumption and calves … [Read more...]
Worth a Glance – February 12, 2026
Last week’s AHD Bulletin – Animal Health Digest Bulletin, February 5, 2026. Link. Most read posts from February 5, 2026 AHD Bulletin – Pet humanization predicted to double global pet care market by 2035. Link. Why Ro is spending $233,000 per second on a Super Bowl ad. Link. The pro/con list – useless. Link. Dental revenue remains behind; 90 percent of … [Read more...]
USDA announces New World Screwworm Grand Challenge
The New World Screwworm Grand Challenge funding opportunity marks a pivotal step in USDA’s comprehensive strategy to combat NWS and prevent its northward spread. As part of the commitment USDA’s Animal and Plant Health Inspection Service will make up to $100 million available to support innovative projects that enhance sterile NWS fly production, strengthen preparedness and … [Read more...]
Scientists focus on genetically engineering mice to cut Lyme disease transmission
Scientists hope to use genetic engineering to reduce the transmission of Lyme disease. The scientists' target is not the deer and ticks associated with the disease, but wild, White-footed mice, the main carriers of Lyme. The teams of scientists are engineering changes in the genetic makeup of the mice by adding a gene for an antibody that prevents Lyme infection to a mouse … [Read more...]
Tick dragging, canine-style
Tick exposure risk varies over the seasons of the year and there is seasonality to what tick species dogs or people are likely to encounter, writes Scott Weese, DVM. His recent experience with his own dog and the article are relevant for veterinary teams, retailers, pet services personnel and pet owners as fall progresses. Source: Worms and Germs, October 21, 2025. … [Read more...]
Researchers using ‘eBeam’ to battle New World screwworm
Texas A&M AgriLife and the National Nuclear Security Administration are exploring safer alternatives to high-radioactivity technologies to address NWS and other invasive arthropods. The eBeam technology used to halt fly reproduction is a potentially safer alternative to high-radioactivity cobalt-60 gamma sterilization. Source: Farm Progress, October 7, 2025. Link. Texas … [Read more...]
Anaplasmosis incidence growing
Lila Seidman’s article in The Los Angeles Times shares the growing threat of anaplasmosis in dogs in California. Anaplasmosis and Lyme disease are spread by western blacklegged ticks and can infect humans. A look at the Companion Animal Parasite Council map shows the anaplasmosis incidence across the country. Source: CAPC, The Los Angeles Times, August 18, 2025. … [Read more...]
Beware of blue-tinted pig tissue, an indicator of rodenticide contamination
The California Department of Fish and Wildlife urges hunters to always use caution when harvesting game animals and be aware of potential risks. Wildlife can be inadvertently exposed to rodenticides either by eating rodenticide bait or by eating other animals that have ingested rodenticides. Rodenticide baits often contain dye to identify them as a poison. Blue-colored … [Read more...]
Buzz off! Deer flies irritate horses and pester riders, too!
Gina Fortunato, MBA, shared a recent horse riding experience with disruptive, biting deer flies that aggravated her horse despite fly shields. She shares her experience and some facts about deer flies, including feedback horse owners offered via social media. Gina (right) and a friend are pictured with their horses. Source: Gina Fortunato, Animal Health Digest, July 28, … [Read more...]
Synthetic bait, insecticide designed to attract adult screwworm flies being deployed
Swormlure-5, created using modern science and built upon previous versions, is a potent synthetic attractant that mimics the scent of open wounds, drawing adult screwworm flies to the bait, where they die, according to Sid Miller, Texas agriculture commissioner, who is quoted in this article. Source: Bovine Practitioner, July 2025, 2025. Link. The attractant only impacts … [Read more...]
Hunter ticks and pathogen transmission variables
The quest to better understand ticks continues. We shared longhorned tick information in the July 17 AHD Bulletin <Link>. Speaking at the AVMA conference last week, Susan E. Little, DVM, PhD, DACVM, shared a range of tactics that affect how quickly ticks can spread disease. The overview differentiates the methods tick species use to find a host and factors that influence … [Read more...]
Longhorned ticks here to stay. Let’s review.
A male longhorned tick is a rarity. Reproducing by parthenogenesis, females clone themselves laying hundreds of eggs and individually creating an entire population in any given area. Considered a pest, there is no evidence that Asian longhorned ticks transmit any infection to people or dogs here in the U.S. However, they can transmit disease to cattle, farm animals and … [Read more...]
Fly control. Getting the timing right
Drovers’ 2025 Fly Control eBook provides every animal health pro with up-to-date information on controlling these costly buzzing nuisances. Even suburban and city dwellers may find something actionable as they deal with flies in backyards feasting on dog feces or pestering backyard flocks. In the free eBook, leading entomologists and veterinarians share: 4 proven steps … [Read more...]
13 plants that gardening experts say repel mosquitoes
As garden centers close out spring flowering plants to get ready for the fall planting season you may still be able pick up one or two of these plants that help keep mosquitoes away. Locally, marigolds, lavender, citronella and basil are still available. Source: Martha Stewart, April 15, 2025. Link. Image: Link. … [Read more...]
New World screwworm update and swine perspective
Ann Hess shares an update and perspectives on the advancing risk of the New World screwworm and where the risks exist for swine in the U.S. She includes how the changes in the Darien Gap increase risks. The Darien Gap has served as a biological barrier for keeping New World screwworm away from our border. Source: National Hog Farmer, June 13, 2025. Link. Fly control will be … [Read more...]
OSU researchers: Asian longhorned tick that can be deadly for cattle
As the Asian longhorned tick moves into new regions, researchers express concerns because ALTs can transmit a protozoan pathogen known as Theileria orientalis, specifically the Ikeda genotype. T. orientalis has similar clinical signs to anaplasmosis but impacts young animals instead of older animals. The Asian Long-horned tick is a three-host tick and reproduces through … [Read more...]
Poll reveals horse owner deworming behaviors
A June poll reveals how frequently a group of respondents deworms their horse(s). Information like this can help veterinary teams understand client behaviors and may provide opportunities to improve horse stewardship. The sponsored article below was linked with the poll results. In it, Christa Lesté-Lasserre, MA, shares what scientists are learning about equine parasite … [Read more...]
Review: Diagnostic testing for tick-borne diseases; recommendations, interpreting results
Ticks are making the news across the U.S. as resident populations bloom and areas experience new tick species migrating into a region for the first time. A large percentage of vector-borne diseases reported are vectored by ticks, with dogs acting as sentinels for human exposure to concerning bacterial, protozoal and viral agents. In this article, Doctors Schlemmer and … [Read more...]
Worth a Glance – June 12, 2025
Last week’s AHD Bulletin – Animal Health Digest Bulletin, June 5, 2025. Link. Most read posts from June 5 2025 AHD Bulletin – Strategies for culling cows this year. Link. Orange cats, freak of nature? Link. Plain speak. Link. AVMA’s New World screwworm resource for veterinarians. Link. DocTalk . . . Embryos and reproductive technologies. Link. … [Read more...]
AVMA develops New World screwworm resource for veterinarians
New World screwworm is a serious cause for concern. AVMA’s New World screwworm webpage delivers the key information veterinary teams need to stay ahead of this emerging threat. Veterinary teams will play a critical role in frontline defenses. The situation calls for vigilance and immediate response. Source: AVMA@Work, June 3, 3025. Link. … [Read more...]
Ramp up fly control or breathe through your teeth
Maggie Gilles provides a reminder all animal health pros need. Fly control begins with regular sanitation to remove manure and organic material from breeding areas. To increase effectiveness, it is important to implement one or more of the fly reduction approaches targeted to different life stages of the pesky flies. Stable flies and horn flies are the primary targets for … [Read more...]
Inflatable tube man as bird deterrent
Includes Commercial Content We noticed the comments about the inflatable tube men in the National Hog Farmer article here. We later found found additional information about using inflatable tube dancers to help control birds and deer from LookOurWay. The erratic movement of inflatable tube men gives birds and other pests no chance to adapt. Sources: Migratory birds … [Read more...]
New World screwworm fact sheet from Texas A&M
Texas A&M AgriLife Research and Texas A&M AgriLife Extension Service experts have released an updated fact sheet publication about the New World screwworm to provide livestock producers with key information about prevention, infestation and reporting of infestations. NOTE: Missouri screwworm report false, BEEF, May 27, 2025. Link. The USDA said the May 27th news … [Read more...]
Orkin reveals the country’s top spots for mosquitoes
Orkin recently published its annual report, ranking U.S. cities by the number of mosquito-related service requests from April 2024 through March 2025. According to Orkin’s 2025 Top 50 Mosquito Cities List, some areas of the U.S. will experience more of these pesky insects than others this summer. Los Angeles is the top spot for the fourth year in a row and statewide, … [Read more...]
Alpha-Gal Syndrome story: How researchers traced a red-meat allergy to Lone Star ticks
The range expansion of the Lone Star tick has been reported redundantly. Focused on our pets, we don’t always associate the Lone Star tick as a culprit that causes red meat allergies in humans. Danielle Gerhard, PhD, tells the story of how scientists discovered the Lone Star tick as the culprit causing Alpha-Gal Syndrome. This is an interesting read and a topic worthy of … [Read more...]
Tick-borne diseases of concern in U.S. horses
You may know and remember that ticks are capable vectors of several equine diseases but do your horse owner clients? Animal health pros can help clients understand the increasing risks from new ticks, regional expansion and disease prevention. Consider this article for newsletters or social media. Adding your own experiences with ticks in your local area while servicing clients … [Read more...]
USDA closes southern border, NCBA supports decision to halt the New World screwworm
Despite the United States' work to control the New World screwworm, weak governmental participation in Central America allowed the insect to spread north out of Panama. This has been coupled with a lack of timely action by officials in Mexico and now the U.S. cattle herd, other livestock, wildlife, pets and humans are at risk again. Consequently, the USDA has closed the U.S. … [Read more...]
Decoding a fly spray label
To effectively reduce the number of flies terrorizing horses, horse owners, retailers and veterinary teams need to identify and consider eight important elements from the various product labels available. The EPA tightly regulates label language. Know that the small print gives the types and levels of active ingredients, which vary from one fly product to the next. This … [Read more...]