Cane toads in Florida and how to protect your pets

The animal most people search for as a “cane frog” is the cane toad (Rhinella marina), a large invasive toad that poisons dogs across Miami-Dade, Broward and Palm Beach counties. If your dog has mouthed one, wipe its gums with a wet cloth right now and head to an emergency vet, because the toxin can kill a small dog in under an hour. Everything below shows you how to tell the toad apart from harmless natives, toad-proof your yard and remove the ones already living there.

Cane toad, cane frog or Bufo toad: same animal

You will hear all three names in South Florida. Older residents and many vets still call it the Bufo toad because its scientific name was Bufo marinus until taxonomists moved it to the genus Rhinella in 2006. Marine toad and giant toad show up on older signs and fact sheets too.

It is a toad, not a frog. Toads have dry, warty skin and short legs built for hopping rather than leaping, and they spend most of their adult lives on land. That matters because a cane toad is far more likely to be sitting on your patio at 10 p.m. than a true frog would be.

Whatever you call it, the danger is the same. Two large glands behind the eyes, the parotoid glands, pump out a milky toxin whenever the toad is squeezed. A dog that bites down gets a full dose straight onto its gums.

Where cane toads came from and why South Florida is full of them

Cane toads are native from the Rio Grande Valley of south Texas down through Mexico and Central America into the Amazon basin of South America. Sugar growers around the world shipped them in during the early 1900s because the toads eat beetles that attack cane. Australia released them in Queensland in 1935 and now lives with a population that recent estimates put at over two billion.

Florida tried the same idea. State and industry researchers released cane toads near sugar fields in the 1930s and 1940s, and those batches apparently died out. The population you deal with today traces back to a different accident. In 1955 roughly 100 toads imported by a pet dealer escaped at Miami International Airport, and further releases by pet dealers in the 1960s added to the stock.

From there they spread north along the canals, lawns and golf courses that South Florida kept building. Today the main established range runs from roughly the Tampa Bay area and Lake Okeechobee south through the Keys, with the heaviest numbers in Miami-Dade, Broward, Palm Beach, Lee and Collier. Isolated populations turn up farther north, usually near plant nurseries or sod farms that unknowingly truck them around in pots and pallets.

Cold is the main thing holding them back. Hard freezes kill adults and tadpoles, which is why the Panhandle and most of North Florida stay clear. Researchers at the University of Florida, including the Croc Docs lab at the Fort Lauderdale Research and Education Center in Davie, track the toads and run control research, and their sighting maps are the ones to check if you want to know whether your neighborhood is on the edge of the range or deep inside it.

Step 1: Learn to identify a cane toad

Most of the toads you see in a Broward or Palm Beach yard are not native. But the harmless southern toad does live here too, and killing natives by mistake is both illegal under anti-cruelty rules if done carelessly and bad for your yard, since native toads eat the same bugs without the risk. Spend two minutes learning the differences.

Adult cane toads

Adults are big. A typical one runs 4 to 6 inches from snout to rump, and large females pass 9 inches and weigh more than a pound. Nothing native in Florida gets close to that size.

The giveaway is the pair of parotoid glands. On a cane toad they are huge, roughly triangular and slope down past the shoulder, looking like two swollen pads behind the eyes. Native toads have small oval glands that sit neatly behind the head.

Look at the top of the head too. Southern toads have raised bony ridges between the eyes that end in little knobs. Cane toads lack those crests, so the area between the eyes looks flat and smooth.

Color is the least reliable sign. Cane toads range from tan to reddish brown to gray, sometimes with dark blotches, and the belly is pale and mottled. Young ones are darker and smaller and easiest to confuse with natives, so go by the gland shape rather than the color.

Side-by-side comparison

Feature	Cane toad (invasive)	Southern toad (native)	Cuban tree frog (invasive)
Adult length	4 to 6 in, up to 9+ in	Usually under 4 in	1.5 to 5 in
Parotoid glands	Large, triangular, run onto shoulder	Small, oval, behind head	None visible
Head crests	None, flat between eyes	Raised ridges with knobs	None
Skin	Dry, warty	Dry, warty	Bumpy, moist
Toe pads	None	None	Large sticky pads
Found	Lawns, patios, under lights	Sandy soil, pinelands	Walls, windows, pool cages
Pet risk	Can be fatal	Mild drooling at most	Skin and eye irritation

Cuban tree frogs are worth knowing because people call them cane frogs too. They are a separate invasive species, they climb glass and walls, and their skin secretions sting if you rub your eyes after handling one. They will not kill a dog, but they do eat native tree frogs and clog pool pumps.

Eggs and tadpoles

Cane toads breed any month in South Florida once water is warm, and they go into overdrive after summer rains. A single female lays 8,000 to 35,000 eggs in long jelly strings draped over vegetation in canals, retention ponds, ditches and even swimming pools. The tadpoles are small, jet black and swim in dense schools.

Eggs and tadpoles carry the same toxin as adults. A dog that drinks from a pond full of them or scoops up a mouthful rarely gets a lethal dose, but it can get sick. Keep dogs out of ditches and pond edges from May through October especially.

Step 2: Know what cane toad poisoning looks like in a dog

The toxin, a mix of compounds called bufadienolides and bufotenin, hits fast. It is absorbed through the gums and the membranes of the mouth, so you do not need the dog to swallow anything. Licking is enough.

Symptoms show up within minutes, in roughly this order:

• Heavy drooling, often thick and foamy
• Pawing at the mouth and head shaking
• Gums that turn brick red
• Vomiting
• Whining, pacing or looking disoriented
• Stumbling, a wobbly walk, dilated pupils
• Rapid or irregular heartbeat and a spike in body temperature
• Muscle tremors and seizures
• Collapse

Small dogs and terrier-type breeds are the usual victims because they are built to grab things and a small body gets overwhelmed by a smaller dose. Big dogs die too. Reports from South Florida vets regularly include Labs and pit bulls that chewed a large toad and arrived seizing.

Cats are poisoned less often because they tend to bat at toads instead of biting, but cat cases happen every summer. Ferrets, rabbits and small dogs that share a lanai with a toad are at risk in the same way.

How fast it goes bad depends on the size of the dog, the size of the toad and how long the dog had it. A Chihuahua that chewed a 7-inch toad can be seizing in 15 minutes and dead within the hour. A 70-pound dog that briefly mouthed a juvenile may only drool for a while. You cannot tell which case you have in the first few minutes, so treat every exposure as the serious kind.

Step 3: First aid, then the vet, in that order

Vets in all three counties will tell you the same thing. The rinse you do in your yard in the first five minutes does more for survival than anything they can do later. Then you still need to bring the dog in.

Flush the mouth properly

Get the toad away from the dog first, using a shoe or a stick, not your bare hand. Then start on the mouth.

Soak a rag or towel in water and wipe the gums, the inside of both cheeks and the tongue. Rinse the rag and repeat. The toxin is sticky, so you are physically removing it rather than diluting it. Keep going for 10 to 15 minutes, checking the gums for the slimy film that signals toxin still present.

Point the dog’s nose toward the ground the whole time. If you use a hose, run it gently from the side of the mouth so water flows out the front, never down the throat. Dogs that have a hose jammed in their mouths aspirate water into the lungs, and aspiration pneumonia kills dogs that would have survived the toad.

Do not try to make the dog vomit, and do not give milk, oil, activated charcoal or anything else by mouth. None of it helps and all of it delays you.

Go to an emergency vet

Call while you drive, or have someone call for you. Say “toad poisoning” in the first sentence so they prepare. Miami-Dade, Broward and Palm Beach all have 24-hour veterinary emergency hospitals, and if you do not know yours, search for the closest one tonight and save it in your phone before you need it at 2 a.m.

At the clinic the team will flush the mouth again, control seizures, treat the heart rhythm and cool the dog down if its temperature has spiked. Most dogs that arrive while still conscious go home the same night or the next morning. The ones that do not make it are usually the ones whose owners waited to see if symptoms got worse.

If the drooling stopped on its own and the dog is acting normal after 30 minutes, you probably caught a minor exposure. Still call a vet or the ASPCA Animal Poison Control Center or Pet Poison Helpline to talk it through. Both charge a consultation fee, which is cheaper than a bad guess.

Step 4: Make your yard less attractive to toads

A cane toad shows up for three things: food, water and shelter. Take those away and you cut the number of toads your dog can find, even if you never catch one.

Food

Pet food left outside is the single biggest draw. Cane toads eat kibble straight from the bowl and will sit in a dog’s dish for hours. Feed pets indoors, or pick up bowls as soon as they finish.

Outdoor lights are the second draw. Porch lights, landscape lighting and pool lights pull in moths and beetles, and the toads sit underneath eating whatever falls. Switch patio lights off when you are not out there, or swap to yellow bug bulbs that attract fewer insects.

Compost piles, fallen fruit from mango and avocado trees, and open trash bins all feed the insects that feed the toads. Keep lids on and pick up fruit.

Water

Cane toads need standing water to breed and like damp ground to sit in. Dump anything that holds rain: plant saucers, buckets, kiddie pools, clogged gutters. Fix leaking spigots and hose bibs, and shorten irrigation run times so the lawn is not soaked every night.

Swimming pools are a problem of their own. Toads fall in, cannot climb the smooth wall and either drown or sit on the steps. Check the skimmer basket every morning during the rainy season, and consider a floating escape ramp so dead toads are not sitting in the water your dog laps from.

If you back onto a canal or retention pond, you cannot drain it, but you can keep the bank clear. Cut back tall grass and reeds at the water’s edge where toads lay eggs and hide.

Shelter

Toads spend the day under something. Woodpiles, stacked pavers, boards leaning against the fence, dense groundcover, the gap under the shed and the space beneath an AC pad are all prime spots. Raise woodpiles onto a rack, clear junk against the fence, and trim low shrubs so the ground underneath gets sun.

Mow regularly. Cane toads sit in long grass because it stays damp and holds insects. A short lawn is a bare, dry lawn from the toad’s point of view.

Fencing

Toads cannot climb smooth vertical surfaces and they are not strong jumpers. A barrier of quarter-inch hardware cloth or smooth sheet material at least 24 inches high, with the bottom buried an inch or two or bent outward, keeps most adults out of a small dog run or patio.

The barrier only works if it has no gaps. Most South Florida fences are aluminum picket or chain link with plenty of room underneath, and a toad walks straight through. Run the mesh along the inside of the existing fence and pay attention to gates, which are usually where the gap is.

This is overkill for a whole half-acre lot. It is very doable for the 10-by-15-foot section where you let a small dog out at night.

Step 5: Change the dog’s routine during toad season

Toads are active from dusk to dawn, and they peak on warm, humid nights after rain. In South Florida that means the rainy season from roughly late May through October is the dangerous stretch, but a warm wet week in January produces toads too, and you should not assume winter is safe. If you track west palm beach weather or any South Florida forecast, a string of evening storms is your cue to tighten up for a few nights.

Walk dogs on a leash after dark, including in your own yard if you have a dog that grabs things. Carry a flashlight and scan ahead on the sidewalk, since toads sit on warm pavement and under streetlights. Keep the dog on a short leash past sprinkler heads, storm drains and the edges of lawns.

For the last potty trip of the night, go out first with a light and do a quick sweep of the patio and the grass near the door before the dog follows. It takes 30 seconds and it is when most backyard poisonings happen.

If you have a doggy door, close it at night during the rainy season. Dogs that wander out alone at 3 a.m. are the ones found drooling in the morning.

Teach a solid “leave it” and “drop it” if your dog does not already have them. Practice with a tennis ball in the yard until the response is instant. A dog that drops a toad the moment you say the word has a much shorter exposure than one you have to pry open.

Dog beaches have their own hazards, from heat to the man o war jellyfish that wash up on windy days, but toads are rarely a beach problem. The risk is at home, on lawns and patios, which is why the yard work matters more than anything else.

Step 6: Remove the toads you already have

Cane toads are not protected in Florida. The Florida Fish and Wildlife Conservation Commission (FWC) states that they can be humanely killed on private property year-round with the landowner’s permission, and the only legal constraint is the state anti-cruelty law, which means you have to do it humanely. Do not relocate them. Dumping a cane toad in a park moves the problem into native habitat, and it is the kind of release FWC specifically asks you not to do.

Catching them

Go out after dark with gloves, a flashlight and a bucket or a sturdy zip-top bag. Toads freeze in a flashlight beam, so you can pick them up from behind with a gloved hand or herd them into a long-handled net. Grab around the body, not the head, to avoid squeezing the glands toward your face.

Put each toad in its own bag and seal it. Do not stack them loose in a bucket where they can climb out.

Humane euthanasia

The method FWC and University of Florida IFAS recommend for homeowners is a two-stage one. First, rub a generous dab of 20 percent benzocaine gel, the kind sold in pharmacies for toothache and teething, onto the toad’s belly or back. The toad is absorbing the anesthetic through its skin and goes limp within a few minutes.

Then seal the bag and place it in the freezer for 24 to 48 hours. The anesthetic keeps the animal unconscious while it freezes, which is what makes the method humane. Freezing a live, unsedated toad is not considered humane and can get you a cruelty complaint. Lidocaine spray applied to the back works the same way if that is what you have on hand.

After the freezer time, put the bag in your household trash. Keep frozen toads away from pets and kids in the meantime, since the toxin is still present in a frozen toad.

Some people prefer not to do this themselves, which is fine. Do not switch to methods that cause suffering, such as drowning, salt, bleach or leaving toads in a hot car. Those are both cruel and illegal.

Eggs and tadpoles

If you find egg strings in a pool or a kiddie pool, scoop them out with a net and put them in a sealed bag in the trash. Tadpoles in a chlorinated pool will die anyway once you shock it, but net out what you can first so you are not vacuuming thousands of carcasses. In a natural pond or canal there is not much you can do beyond keeping the bank clear, since the water is not yours to treat.

Hiring it out

Several private companies in Palm Beach, Broward and Miami-Dade run regular toad removal routes, especially in gated communities with lakes. Pricing is usually per visit or a monthly contract, and some HOAs cover it. FWC keeps a directory of nuisance wildlife trappers on its site, and that is the place to find someone who is doing it legally and humanely rather than picking a name off a flyer.

Step 7: Report sightings outside the known range

FWC and UF use public reports to track the leading edge of the cane toad range. If you are in Miami-Dade, Broward or Palm Beach, a toad in your yard is not news, and you do not need to report it. If you are visiting family in Ocala or the Panhandle and see one, that is worth a report.

You can report through the FWC Exotic Species Hotline at 888-IVE-GOT1 (888-483-4681), the IveGot1 website, or the EDDMapS app, which lets you upload a photo with location. A clear photo of the head and glands is what the biologists need to confirm the ID. Confirm the current reporting options on the FWC nonnative species pages, since the apps and web forms get updated.

The same hotline handles other invasive wildlife, including Burmese pythons and Argentine tegus, if you spot those. For a sick, injured or dead native animal, such as a manatee in a canal, that is a different number, and FWC’s Wildlife Alert line is the one to use.

Why cane toads matter beyond your dog

The reason FWC treats this as a wildlife problem and not just a pet problem is that cane toads are a large, hungry, poisonous predator with almost no natural controls here. An adult eats anything that fits in its mouth: beetles, native frogs, small snakes, baby birds that fall from nests, and lizards. Research in Florida and in Australia shows they outcompete native toads for food and breeding sites.

Native predators that try to eat them often die. Raccoons, otters, snakes and wading birds have all been found dead with cane toads in their stomachs. Some Australian crows have learned to flip the toads over and eat only the belly, avoiding the glands, and a few Florida animals seem to be figuring out the same trick, but the toads still win on numbers.

They are also a pest for growers. Cane toads sit in sod farms, ornamental nurseries and vegetable fields in Palm Beach County and ride out with the product, which is how they keep seeding new populations. If you buy large potted plants or pallets of sod from South Florida and live north of the range, check the pots.

This is the cautionary tale biologists tell about biological control. A sugar industry in the 1930s looked at a toad that ate beetles and saw a free pest control service. What they got was an animal that eats everything, poisons everything that eats it and breeds by the tens of thousands.

Common problems

Problem	What is happening	What to do
Toads come back every night	A nearby pond or canal supplies new ones	Focus on fencing the dog’s area and removing food and lights, not just catching
Dog licked a toad but seems fine	Possible light exposure	Rinse the mouth anyway and call a vet or poison line to confirm
Can’t tell toad from native	Juvenile or poor light	Check for the big triangular glands and missing head crests; when in doubt, photograph and leave it
Toad in the pool every morning	Falling in under pool lights	Turn lights off, add an escape ramp, check skimmer daily
Toads under the neighbor’s shed	Shared breeding or shelter spot	Talk to them, or contact the HOA if the community has a removal contract
Dog found drooling in the morning, no toad seen	Likely overnight exposure through a doggy door	Treat as toad poisoning, rinse and go to the vet
Cat with foamy mouth	Batted or bit a toad	Same first aid, same vet trip
Kids touched a toad	Toxin on hands	Wash with soap, keep hands away from eyes, call a doctor if eyes are red or burning

FAQ

Is a cane frog the same as a cane toad?

Yes. “Cane frog” is just a common misnomer for the cane toad, Rhinella marina. In South Florida you will also hear Bufo toad, marine toad and giant toad for the same animal.

Can a cane toad kill a dog?

Yes. The toxin from the glands behind its eyes is absorbed through the gums within minutes and can cause seizures, heart arrhythmias and death, sometimes in under an hour for a small dog. Fast mouth rinsing and an immediate vet visit save most dogs.

Are cane toads dangerous to people?

Not in normal contact. The toxin irritates skin and burns eyes badly if you rub them after handling a toad, so wear gloves and wash up. The toxin is absorbed through mucous membranes, so biting, licking or mouthing a toad is seriously dangerous for pets and potentially for people, which is not a risk for most adults but is why toddlers should be kept away.

Is it legal to kill cane toads in Florida?

Yes, on your own property or with the landowner’s permission, as long as you do it humanely. FWC recommends benzocaine gel on the skin followed by 24 to 48 hours in a freezer. Relocating them is discouraged and inhumane methods can violate state cruelty law. Check FWC’s cane toad page for the current guidance.

What time of year are cane toads worst in South Florida?

They are active year-round, but numbers spike during the rainy season from late May through October when they breed after storms. Warm wet nights are the highest-risk nights in any month.

How do I tell a cane toad from a native southern toad?

Size and glands. A cane toad is usually 4 to 6 inches long with large triangular glands that slope down onto its shoulders and no ridges between its eyes. A southern toad is under 4 inches with small oval glands and raised crests ending in knobs on the head.

Do cane toads live in swimming pools?

They fall in and cannot climb out, and in the rainy season they sometimes lay eggs in untreated or lightly treated pools. Turn off pool lights at night, add an escape ramp and check the skimmer basket every morning.

Should I report a cane toad sighting?

Only if you are outside the established range, which covers all of Miami-Dade, Broward and Palm Beach. Sightings in Central or North Florida help FWC and UF track the spread, and you can report through the Exotic Species Hotline or the EDDMapS app.