If you've mentally filed ticks under “summer problem” and moved on with your life, we need to talk. Every fall, we diagnose dogs with Lyme disease whose owners will swear — hand over heart — that they've never once found a tick on their dog. Here's the twist: they're probably right. They just never saw it, because it was about the size of a poppy seed and long gone by the time symptoms showed up.
That's the thing about fall in Northeast Wisconsin. Between hunting season, cooler nights, Halloween candy bowls, and a whole cast of curious noses — feathered and furry ones included — autumn hides more hazards than most pet owners expect. Here's what we're actually seeing walk through Gentle Vet's doors this season, and what to do about it before any of it becomes an emergency.
Wait — Aren't Ticks a Summer Problem?
Nope. In Northeast Wisconsin, ticks are just as active in fall as they are in June — arguably more dangerous, because everyone's guard is down. We hear a version of the same conversation constantly: “There's no way my dog has Lyme disease, I would have seen a tick.” Except the ticks doing most of the damage right now are in the larval and nymph stage, which means they're roughly the size of a pinhead. You could check your dog head to tail and still miss one — and plenty of our clients have.
If your dog spends any part of fall hunting, hiking, or just patrolling a wooded property line, ticks are the single biggest fall hazard we see — more than any toxin, more than any injury. For dogs actively hunting, we recommend either a Bravecto Quantum injection or Simparica Trio as the backbone of tick prevention, with a Seresto collar layered on top as extra repellent (not a replacement for either). The Lyme vaccine belongs on that list too. Our Parasites page has more on what year-round coverage should look like for a dog with your lifestyle.
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REAL CASE: “It Took Six Weeks to Get Better” One of our own team members had a dog diagnosed with both Lyme disease and Rocky Mountain spotted fever — RMSF, which is uncommon in Wisconsin but not impossible. A typical Lyme recovery takes 10 to 14 days. This dog was sick, painful, and not eating for more than six weeks before fully recovering. It's not the usual outcome, but it's a real one — and it's why “my dog's fine, he's young and healthy” isn't the same thing as “my dog is protected.” |
One more wrinkle worth knowing: the annual 4Dx test — the bloodwork panel that screens for heartworm plus three tick-borne diseases — is often run in any time of the year alongside other wellness bloodwork. That test is actually looking backward at the previous year's exposure, so a clean result in May doesn't mean fall is automatically safe — it means last year was. Worth keeping in mind if your dog's screening happens to land outside of fall. The CDC's tickborne disease resources are a good general reference on how tick season actually runs in the Upper Midwest.
Hunting Season Turns the Woods Into an Obstacle Course
Wisconsin's fall hunting calendar is long — archery deer season typically runs from mid-September through mid-November, firearm deer season lands in mid-November, small game runs mid-September through February, and waterfowl season stretches from late September into early December. Exact dates shift year to year, so check current dates at the Wisconsin DNR before you head out. That's a lot of overlap between hunting dogs, wildlife, and off-leash time in heavy brush.
Blaze orange isn't just for you — put a brightly colored vest, bandana, or reflective harness on your dog too, especially anywhere hunting is active nearby. And if your dog is the type to bolt after a deer, this is the season to keep that instinct on a leash. Literally.
Two injuries we see spike every fall: eye injuries and ACL tears (also called CCL tears — same joint, different name). A dog working through heavy underbrush at full speed is going to take some hits. If your dog comes back from a hunt squinting or with a red, irritated eye, flush it with plain over-the-counter human eye wash — not contact lens solution — and see if that clears it. If the redness or squinting doesn't resolve, that's likely a scratch or ulcer on the surface of the eye, and it needs prompt care.
ACL tears show up differently: a dog that was running fine an hour ago suddenly won't put weight on a back leg. This isn't something you can prevent by being a more careful owner — it's closer to a sports injury, a real risk that comes with a dog living an active life outdoors. It's not an emergency-room situation, but it is a “call us today or tomorrow, not next month” situation, so we can get a diagnosis and a repair plan started and get your hunting partner back in the field sooner.
And one hazard nobody puts on a checklist: porcupines. Hunting dogs are curious, porcupines are not impressed, and the result is a dog with a face full of quills that has to come out one at a time, under anesthesia. If you see a porcupine in the field, that's the one time we'd tell your dog to lose interest immediately.
What's in Your Yard Might Be More Dangerous Than What's in the Woods
Not every fall hazard requires a hunting license. Plenty of dogs get into trouble without ever leaving the backyard.
Compost piles and garden cleanup debris are a magnet for scavenger-minded dogs — rotting vegetables apparently qualify as fine dining if you're a dog. Most of the time, that ends in a day or two of an upset stomach and nothing worse. The bigger concern is mold: compost can harbor tremorgenic mycotoxins, a mouthful of a term for mold byproducts that can cause tremors or seizures, sometimes within 30 minutes of ingestion. If vomiting or diarrhea goes past 24 hours, or your dog shows any tremors, wobbliness, or seizure activity, that's a same-day vet visit, not a wait-and-see.
Mushrooms popping up in yards and wooded areas deserve the same caution. The vast majority are harmless, but the dangerous ones — including the death cap mushroom — can cause serious liver and kidney damage, and telling a safe mushroom from a dangerous one by eye is genuinely difficult, even for experienced foragers. Our rule: if your dog eats a mushroom you can't positively identify, treat it as toxic and call us or animal poison control right away. If possible snap a picture of a local sample and bring it with you if an appointment is needed.
Rodenticides deserve a mention too, since fall is prime rat-and-mouse-bait season as rodents move indoors ahead of winter. These products are toxic to pets directly, and dogs and cats can also be poisoned secondhand by eating a rodent that's already been poisoned. If you're using bait anywhere on your property, keep pets out of that area entirely, and ask your neighbors whether they are too.
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? CALL NOW IF YOU SEE THIS Tremors, seizures, repeated vomiting, sudden weakness, or collapse. Call Gentle Vet or ASPCA Animal Poison Control immediately — don't wait to see if it passes on its own. |
The Chocolate Question Isn't as Simple as “A Little Bit Is Fine”
Halloween brings its own predictable wave of calls, usually one of two ways: the dog finds the candy bowl and helps himself, or a well-meaning kid decides sharing is caring and feeds the family pet a fun-size bar.
Here's the honest answer we give every time someone asks “how much chocolate is too much”: it depends. Toxicity comes down to your pet's body weight and the type of chocolate — specifically, how concentrated the cocoa is. A small amount of baking or dark chocolate can be genuinely dangerous even for a large dog, while a small dog can sometimes eat a modest amount of milk chocolate and be just fine. That's not a rule you want to guess your way through at 9pm on Halloween. Call us or ASPCA Animal Poison Control, tell them the type of chocolate, how much, and your pet's weight, and they can calculate the real risk instead of a worst-case guess.
The reassuring news: most owners are already cautious about chocolate, so most of these calls end with us inducing vomiting and monitoring at home rather than a hospital stay. The scenario that turns serious fast is a small dog getting into dark or baking chocolate — treat that one as urgent, every time.
While you're candy-proofing the house, xylitol deserves a mention too. It's showing up in more sugar-free candy and gum every year, and it's dangerous to dogs in much smaller amounts than chocolate is.
Don't Forget Your Feathered, Scaled, and Furry Roommates
Fall and the holiday season that follows aren't just a dog-and-cat story. If your household includes a bird, reptile, ferret, rabbit, guinea pig, or chinchilla, a few fall habits are worth adjusting.
Strong scents — scented candles, essential oil diffusers, incense, even pumpkin-spice everything — can trigger real respiratory irritation in birds and in small mammals with sensitive airways, like rabbits, guinea pigs, and chinchillas. If you've got exotic pets in the house, keep the heavily scented stuff in a room they don't share.
As holiday cooking ramps up, be careful with nonstick pans left to heat on the stove without food in them — the fumes that come off an overheated, empty Teflon pan are especially dangerous for birds. And as temperatures drop, check space heater and fireplace setups for damaged cords or overloaded outlets before you rely on them daily — both a fire risk, and, if a heat source fails, a cold-exposure risk for animals that depend on supplemental warmth.
That cold-exposure point matters more than people expect: reptiles, tropical bird species, and even rabbits that have spent their whole lives indoors don't have the ability to adjust quickly to a cold draft the way people assume an “outdoor animal” should. Watch for drafty windows and doors as the weather turns.
Last one: curious ferrets and birds love small objects, and holiday shopping means more small parts and stray toy pieces lying around. Treat anything smaller than a golf ball as a choking or ingestion risk if you share your home with either. Our Exotic Pet Services page has more on what routine care looks like for exotic companions in every season.
Fall Pet Safety: Quick Answers
Can my dog have Lyme disease even if I've never found a tick on him?
Yes — and it's more common than you'd think. The ticks most likely to transmit Lyme disease are often in the nymph stage, about the size of a pinhead, easy to miss entirely even with a thorough check. A clean “tick search” doesn't rule out exposure.
How much chocolate is dangerous for my dog?
It depends on your dog's weight and the type of chocolate — baking and dark chocolate are dangerous in much smaller amounts than milk chocolate. Call us or ASPCA Animal Poison Control with the details rather than guessing; they can calculate actual risk in minutes.
My dog suddenly won't put weight on a back leg after a day outside. Is this an emergency?
It's not typically an ER-level emergency, but it does call for a prompt appointment. This pattern is a common sign of an ACL (CCL) tear, and earlier diagnosis means a faster path back to normal activity.
Is it safe to use scented candles or essential oil diffusers around my bird or rabbit?
We'd avoid it. Strong scents, including popular pumpkin-spice and holiday fragrances, can irritate the respiratory systems of birds and of small mammals like rabbits, guinea pigs, and chinchillas.
When does hunting season start in Wisconsin, and does it matter if my dog doesn't hunt?
It matters either way. Wisconsin's archery deer season starts in mid-September, with firearm season in mid-November and small game and waterfowl seasons running in between — check the Wisconsin DNR for exact current-year dates. Even non-hunting dogs walking near wooded or rural areas benefit from a visible vest or leash during these windows.
Gentle Vet Animal Hospital
2560 University Ave, Green Bay, WI
(920) 435-5000
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