If there’s one myth that hangs around ranch country year after year, it’s the idea that a hard freeze wipes the slate clean on parasites. I get where it comes from—we see bermudagrass die back, flies disappear, snakes vanish, bugs go quiet, and everything suddenly feels…dead. But parasitology doesn’t follow the same rules as the rest of the ranch. A cold snap doesn’t magically “sterilize” your cattle or your pastures. In fact, for several parasites, winter is not a problem at all—it’s their favorite time of year.
December and January, especially across West Texas and the southern Plains, create a sweet spot for some of the most costly freeloaders on your cattle. Lice explode. Winter ticks find their groove. Internal parasites hunker down and wait for spring. And every one of these reduces performance long before you see obvious symptoms.
So let’s clarify what actually happens on your ranch in December and why waiting until spring can be too late to control parasites. Recognizing that winter doesn’t kill all parasites is key to implementing timely management steps that protect your herd’s health and future performance.
If you’ve been around cattle long enough, you already know the truth—horn flies don’t pay attention to the calendar. Just because September rolls in doesn’t mean the pressure lets up. In fact, for many ranchers, fall can bring some of the heaviest horn fly infestations of the entire year. And if you’re not watching closely, your herd could start losing body condition at a time when you want them holding steady or even gaining before winter.
Bovine Respiratory Disease—better known as BRD—isn’t just one illness. It’s a catch-all term for respiratory diseases in cattle, most often showing up as 
It’s August—and at first glance, your cattle might look like they’ve weathered summer just fine. The calves are filling out, the cows are holding condition, and the pastures, while a little crispy, are still holding up well. But don’t let that surface-level calm fool you. One sneaky issue that could be dragging down performance and profits without making much of a scene is 
Trichomoniasis—Trich for short—isn’t just another hard-to-pronounce disease. It’s a serious and costly problem that can infiltrate your herd and significantly impact your bottom line. We’re talking fewer calves on the ground, lower weaning weights, and a longer, more frustrating breeding season. And the worst part? You often don’t realize it’s there until it’s already done the damage.
The weaning season is upon us once again, and for those of us deeply entrenched in the cattle business, we understand the profound significance of this time. It’s not just a rite of passage for the calves but a crucial test of our planning and management skills as ranchers. The satisfaction of seeing our calves take that next step is undeniable. Still, we also know that it can be a stressful period for both us and the calves.
Nobody wants to walk out to the pasture and see a sick cow. Cattle diseases don’t just hurt the animal—they can slow down your whole operation and hit your wallet harder than expected. Sick animals may eat less, grow slower, or lose condition, and treating them takes time and money you probably hadn’t planned on spending. The good news? Many common issues can be spotted early and dealt with before they turn into big problems.
Pinkeye, a highly contagious disease in cattle, can spread rapidly if not promptly addressed. This bacterial infection, which primarily affects the eyes, can lead to irritation, excessive tearing, and in severe cases, blindness. Given its mode of transmission through direct contact and flies, an outbreak can swiftly engulf an entire herd. Therefore, early detection and immediate action are crucial, as managing it becomes significantly more challenging once it takes hold.
Sulfur salt blocks have sparked plenty of debate among cattle producers. Some ranchers swear by them, believing they offer real benefits to their herd. In contrast, others argue they’re nothing more than an unnecessary expense. With so much conflicting information out there, it’s easy to see why the topic can be confusing. Do sulfur blocks truly help cattle, or are they just another product that sounds good in theory but doesn’t deliver? Making the best decision helps to take a closer look at what they actually do—and what they don’t.
Bovine Leukemia Virus (BLV) could be lurking in your herd right now—and you wouldn’t even know it. This silent disease is already costing the cattle industry millions, especially in dairy herds. While it often flies under the radar, BLV can have a profound financial impact, leading to lost production, higher vet bills, and the need to replace affected animals. Even if your cattle look healthy, the virus could still spread, putting your operation at risk.
