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Dr. Coates is a veterinarian based in the other “Sunshine State” – that's Colorado to the rest of you – where she lives and plays with a varied range of animals. She shares her professional and personal experiences, Monday through Friday, here on petMD's blog, the Fully Vetted. Log in for your daily dose of her insight and wisdom.

 

Bufo Toads and Dogs: A Nasty Combination - But is it Worth Killing Over?

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August 01, 2011 / (25) comments


If you’ve never seen one before you’ve really not missed much. Bufo toads are big, short, squat toads with a lumpy-bumpy exterior — much like you’d expect if your worldview relied on fairy tale imagery. But still ... is it OK to kill them?

 

Lots of people think so. And I’ll confess: I’m one of them. Here’s why:

1. Bufo toads are poisonous to dogs who are curious or prey-driven enough to chase, catch and lick or bite them. The toxin they secrete and shield themselves with subsequently cause severe oral inflammation, seizures and cardiac arrhythmias. Though not often deadly once treated, some dogs do die — my mother’s Parson’s terrier, included (RIP, Floreana).

2. Bufo toads are an introduced species that don’t belong in South Florida. They’re from Australia and they have no business shouldering out the native species that once called SoFla home. It’s best they not be here at all.

But are those good enough reasons to end an innocent animal’s life? Hmmm…

As a veterinarian who’s practiced in South Florida for more than ten years, and has treated perhaps a hundred or more cases of Bufo toad envenomation, I do believe I’m justified in thinking so. Still, that doesn’t mean I’m willing to allow an animal to suffer.

Here’s a recent Miami Herald article I wrote to help explain how these toads are best dealt with. That is, if you plan to deal with them at all:

 

Q: Every year, my husband and I argue over the same thing: What to do with the Bufo toads that invade our yard. A couple of years ago you wrote a column on the dangers of these toads to our dogs and how seizures and even death can happen when dogs lick or eat these animals. You mentioned that they were an invasive species to South Florida and that they should be killed with a shovel. But I think that’s inhumane. My husband, however, doesn’t. He’s taken your words to heart. Please tell me you didn’t mean to say these innocent animals should be butchered inhumanely.

A: Oops. What I said is that sometimes the best thing for these animals is a shovel, which occasioned a slew of e-mails from folks like you who’d interpreted that to mean that the toads should be killed by bashing them with a shovel.

The truth is, I was thinking along the lines of removing them with a shovel — —not killing them in this manner, which I consider unacceptably inhumane. In fact, I considered writing a retraction, but abandoned the idea; admittedly, in retrospect, inadvisably.

Because you are right; "butchering" these animals is not the way we should proceed when faced with a Bufo toad invasion. Not when other means are available to us.

But first, let me back up and explain for the benefit of those who may not be privy to an understanding of Bufo toad poisoning in dogs:

Bufo toads (AKA Bufus marinus) are an invasive, non-native species of Australian amphibians that have enjoyed a proliferative experience in South Florida thanks to our hospitable climate. But they are unwelcome. And it’s not only because they do damage to our delicate ecosystem. The fact that dogs who engage them as prey suffer oral irritation, life-threatening seizures and sometimes heart failure earns them a special place on our list of despicable creatures.

But that doesn’t mean we should kill them with shovels. Gross as it sounds, the most humane method of euthanasia for amphibians has been determined to involve a simple household appliance: the freezer. If you can get past the toad-catching, plastic-bagging, freezer-installing and eventual disposal of these animals (in the garbage, usually) … you’re doing the best thing for the environment and for your dogs.

I know it’s not easy. But it is the best for everyone involved.

 

OK, so now it’s your turn. Am I wrong? What’s your take?

 

 

Dr. Patty Khuly

 

 

Pic of the day: Bufo marinus by Herman Horsten

bufo toad, bufo marinus, poison toad, toad toxicity, dog poisoned by toad, cat poisoned by toad

 

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COMMENTS (25)
1
UGH!
by GrandCynth on 08/01/2011 01:51am

Yes, I know I'm odd...but I have a life long, full blown phobia, to toads and frogs. I can't believe I even got through your article....I will admit I had to read bits and pieces, and return several times to get through it, for the benefit of my dogs! But the visual of catching one, and putting it in my freezer to kill it, and then the colored photo of one, sent me over the edge!! Please tell me we don't have thse toads in Northern California, PLEASE!!???

2
EEEEK!
by Melly on 08/01/2011 03:13am

Before you blame us aussies for these nasty nasty beasts, you should know the Cane Toad (as we affectionately know them) were introduced to Australia from Hawaii in June 1935 by the Bureau of Sugar Experiment Stations in an attempt to control the native cane beetle (Dermolepida albohirtum).

So please take them back :)

by Kattonic Mom on 08/01/2011 01:49pm

I have a hard time with government agency (and most other government anything) because of stupid things like this. They do things without any thought of the future and what harm their actions will cause. Then again, people get exotic pets, decide they can't handle them, and instead of trying to do the right thing they just dump them somewhere they don't belong. Dr Khuly, I'm all for the shovel...even to the point of bashing them. Thank God for cold Wisconsin winters!

3
Bufo ICK Toads!
by ZeeZee on 08/01/2011 06:42am

We have them in Bermuda...awful creatures. I've had friends whose cats and dogs have died as a result of a Bufo encounter. Our vet told us to keep a mixture of 50% water and 50% vinegar handy and should our dogs meet up with the ICKs, soak a cloth in the mixture, wipe their mouths and get to the vet IMMEDIATELY!

by NvonS on 08/01/2011 01:45pm

Thanks for the tip on the solution of water and vinegar. Our neighbors dog got a hold of one of these buggers and his owner rinsed his mouth with the hose. The vet said that if the dog was out alone he would have died. I never leave my dog out, off leash after dark, even though my yard is fully fenced. I would love to find a trap for these toads. Anyone know of one?

by ZeeZee on 08/01/2011 02:12pm

I have lots of big rocks/boulders in my yard and they sometimes set up shop under them. If I spot one, usually after a rain shower, I pour a whole thing of Morton's salt around the entrance. They come out trying to kick the salt out, I'm very persistent so after a couple of boxes they came out and we would catch them and...you know! ;-D Doesn't matter how high your fence is, they are serious climbers. I have a Koi Pond and often find them in there, and yep, we catch them there too. They originally avoided salt water but now have been known to swim short distances in salt water to get to where they want to go...miserable buggers!

4
Midwest
by TheOldBroad on 08/01/2011 07:10am

I'm truly grateful that these creatures don't live in the Midwest.

5
Bofu and Lion Fish
by NvonS on 08/01/2011 10:21am

I think we need to get rid of these buggers any way we can. They just had a Lion Fish round up off Stuart. People need to stop releasing non native species in our environment.

6
by boehmec on 08/01/2011 10:31am

The AMVA allows rapid cooling. So perhaps a bucket of ice water?

7
by pilotom on 08/01/2011 10:31am

Hmmm...I'm torn about this because even though I'm sure I would be devastated if one of my pets died as a result of an encounter with one of these toads, I don't think it's right for us to just go around killing these animals - whether introduced or not. Actually - the whole introduction thing is part of nature. Us humans often want to keep environments a certain way but the fact is that species move around all over the planet in all sorts of ways from floating logs to winds to hitchhiking on other species. Granted, with the global travel and particularly the global shipping humans put in place, species move around a lot more but to hate a species and want to decimate it because it's doing something that is just part of nature (trying to expand) doesn't make sense to me. I used to work at a place where there was also a small park and a canal nearby. There was a resident toad in the area we called Bufford - never bothered anyone. He would come out to sun himself once in a while or you would spot him after a heavy rain. If people or dogs approached him he would quickly disappear. If I had one of these toads in an area that I knew was frequented by my pets or other cats/dogs, I would trap and move him but I wouldn't kill him. Call me a toad-lover but I was sorta fond of Bufford.

8
? Not sure
by stefanio on 08/01/2011 10:46am

Not sure how I feel on this one. I am not going to vote whether to kill or not kill these toads (except to agree that if it is going to be done, it should be done humanely).

I note, however, the following:

We want to kill these toads, and the reason supposedly is that they can poison our pets, albeit rarely fatally. (Do we have statistics?). So, toads: pose a danger to our pets, and the penalty is death.

Can we now list all the other sources of equal or greater danger to our pets, (antifreeze, rat poison, abuse, poisoned pet food, toxic plants [cats mostly], cars, etcetera).

Why is it when the danger is another non-human living creature, the solution is killing, but we have yet to outlaw rat poison, rarely enforce abuse laws against humans, aren't doing much better on pet food oversight in the wake of all the death a few years back, etcetera?

So easy to kill nonhumans. Why don't we prioritize the list of dangers and then start at the top of the list with the ones that statistically cause more harm?

by Marcelle on 08/01/2011 10:14pm

'Why is it when the danger is another non-human living creature, the solution is killing, but we have yet to outlaw rat poison, rarely enforce abuse laws against humans, aren't doing much better on pet food oversight in the wake of all the death a few years back, etcetera?'

you can't kill rat poison.

9
bufo toads
by 3grrrs on 08/01/2011 01:24pm

I'm torn on this topic .. hate killing things, but when I consider the damage done to our ecology across the nation by imported pests, both fauna and flora .. I'm inclined to say, kill it. We've lost so much habitat to imported plants that have no enemies here so they thrive at the expense of our native plants. As a result we've lost so many critters because their food sources have been crowded out. Now we have the Asian carp to deal with, zebra mussels, and the list goes on. I had no idea there were toads from Australia living her as well.
The more I think about it, the more I think eradication is justified.

10
multipe bufo toads..
by 3grrrs on 08/01/2011 01:28pm

Yikes .. sorry about this .. I can't find away to delete the extra uploads of my comments .. apologies.

by petMD Editorial on 08/01/2011 09:04pm

No worries. We've got your back :)

11
Bufo Toads
by Quixote on 08/01/2011 01:41pm

I kill native threats to my pets all the time: mosquitoes, flies, ticks, etc. I would have no qualms about protecting them from any native or nonnative creature that will harm them on our property. That is my job as a responsible pet owner.

12
Non native species
by vida on 08/01/2011 07:32pm

As a non-native species myself,( I think we all started in Africa? Or the nile delta, a bit fuzzy on that) I think it's a bit late to be purging the other non native species. You want to look at invasive animals that wreck the delicate ecosystem? Look in the mirror, humans tend to wreck havoc where ever we go. And yet, I'm rather fond of us, we'll do better maybe in time. As to the toads, well, I'm kind of fond of them too but I'm up North so don't get a vote in their fate.

13
How to recognize a Bufo?
by MiamiAngel on 08/02/2011 11:57pm

You know I've seen these huge, fat ugly toads I was terrified. But I have no idea if it's a Bufo toad. I come across them as I'm feeding the colony of stray cats in my neighborhood. One evening during sunset, I noticed the water bowl had some thing in it. Thinking it was the usual dark leaves that fall from the trees, I studied it before getting closer. Why this time? it looked awfully full of leaves but after studying it, I realized it was a monstrous toad. I often wondered if it was the Bufo toad. Now I can't even imagine trying to capture it. But I don't want them around my cats either. But I won't kill them with a shovel either. So I shooed it to the opposite direction. But then I learned from security guards that they eat the leftover cat moist food! I'm the reason they're big and fat! Oh no! I'm not kissing toads, I'm feeding them! Christine www.riverfrontcats.com

14
Euthanasia by freezing
by MikeF on 08/06/2011 11:43am

Euthanasia by freezing is controversial at best. AARV has stated that the method is painful and should not be used.
There is a big difference between "humane" and "non-violent". The shovel bashing method is ugly, violent, and I hate it. However, done correctly, it is very fast. Freezing is neither fast nor painless for the recipient - just easier for the executioner.

Bufo is not a good name for these toads, as there are many toads that share the genus Bufo, not just marinus. Many are native to the US.

Cane toads, as they are called in Australia, are introduced all around the world, including Hawaii. They probably originate in Central America. Marine toad may be a better name.

The preferred method for euthanasia of course involves lethal injection under veterinary supervision, but I fear most people won't have the resources to kill large numbers of toads that way.

by versinn on 08/08/2011 08:00pm

thank you for saying what i was going to say

I have always understood freezing to NOT be a humane death- even Vets who practice on fish don't advocate that kind of death as ice crystals forming in the blood stream is very painful (ask anyone who's ever lost a digit to frost bite).

I'm thankful i don't have to worry about them in the midwest- i'm not sure i'd have the heart to kill them as it's not their fault they were released here- they're just trying to live like every other animal around

by BBristol on 08/10/2011 07:02pm

I also thank Mike for this sensible reply. I am constantly amazed at how often people equate "gory" with "inhumane" - and unfortunately they also equate "bloodless" with "humane". Destroying the brainstem is as painless as a death can get, since the pain impulses literally have nowhere to go to be recognized as such. Whether this is carried out with a shovel, or hammer, or bullet or other instrument of force is irrelevant. Killing an animal in such a way may be hard on the operator's sensibilities but it's MUCH easier on the animal than most other slower, tidier methods.

15
Protecting my furbabies
by CVICU RN on 08/06/2011 11:46am

I remember hating my next door neighbor for running over snails with his tricycle. I thought he was the meanest human alive. But as an adult, I'm really sold on the idea of protecting the little ones who count on me. I hate the idea of killing a bear or cougar, but I'd sure do so if was attacking my children. While I don't plan to ever have a bear or cougar encounter, I may well have a toad encounter. No way would I leave anything around that could cause the death of my two tiny Maltese. Sorry Mr. Toad.
But I would have to contract out the deed. What are husbands for anyway?

by stefanio on 08/10/2011 08:44pm

Isn't there some way to keep these things out of the yard? I mean, there are not many maltese owners letting them run around unsupervised, and I'm sure you don't. So what are the chances of a close encounter of the poison toad kind?

16
MBA vs VMD
by officerdown on 08/06/2011 09:28pm

MikeF has already pointed out the errors I've noticed but I'm compelled to add to these sentiments. I hope a retraction is planned for the Miami Herald before people start filling up their freezers with every bumpy amphibian they find in their backyard.

"Bufo toad" is not only unspecific and misleading, it's redundant: Bufo is latin for TOAD. And though she has enlisted her readers to kill the toads, the author didn't offer a description for discriminating the cane toad and South Florida's other toad species (or any other species where this may be read now that it's circulating on the internet).

I also have to agree that freezing could potentially be a slow and painful death to an amphibian and would much rather support a swift decapitation with a spade in its place. But neither of these are actually the most ethical means available. Chemical euthanasia with Tricaine-S (MS222) at high concentrations is an option for anyone seriously interested in doing this and it is readily available online. But before you toss out those carcasses, consider a new hobby: http://toadshop.com/

That being said, I think the whole thing is a waste of time. Eradication is not feasible and just as much as these toads have invaded new territory so have we, along with out pets. In my opinion your dog is just as unwelcome to the ecosystem as this toad is. Both are likely here to stay.

17
Bufo toads
by k_maree on 08/07/2011 06:36pm

I was very disturbed to read in your article that you believed Cane Toads (bufo marinus) were an Australian species! These toads are AMERICAN are were introduced into Australia FROM Hawaii. Their natural distribution extends from the southern United States to tropical South America. So when you claim that "they have no business shouldering out the native species that once called SoFla home", spare a though for the indigenous Australian species that are being decimated by this pest. This animal is killing off our native predators including quolls and goannas and influencing native frog populations. So when you say "it’s best they not be here at all", it really applies over here in AUS!

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About fully vetted

Patty Khuly, VMD, MBA

Photo of Dr Khuly

Dr. Khuly is a former petMD blogger and small animal veterinarian in Miami, Florida, where she practices medicine at Sunset Animal Clinic and serves on the board of the South Florida Veterinary Medical Association. She is a graduate of Wellesley College, the University of Pennsylvania School of Veterinary Medicine, and The Wharton School of Business.

As a significant sideline, she writes...a lot. She authors pet health columns for USA Today, The Miami Herald and Vetstreet. She also writes a popular monthly column for Veterinary Practice News and serves as regular contributor to Veterinary Economics, The Bark, and the Veterinary News Network.

Dr. Khuly lives in South Miami with her brood of hens, goats, dogs, cats...and humans.

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