The latest cane toad pest control story is a fabulous yet repulsive idea to
export them to China for human consumption and Chinese medicine. Interestingly, one of the biggest hurdles to export is not whether toads are tasty, but what to do with the toad venom, a Class A drug.
Cane toads are noxious bastards. Alongside rabbits and camels, cane toads are one of the most successful
introduced species into Australia. An abundance of food and a lack of predators have fueled pest numbers. Rabbits were introduced for sport; the story goes that just
six rabbits were released for hunting. Similarly, camels were far hardier than the first white explorers who used them as pack animals. But like the
old lady who swallowed a cat to catch the mouse to catch the spider, toads were introduced from Hawaii to eat the cane beetle, which was destroying cane crops in Queensland. However it turned out that the beetles hung out up the stalk, while toads were ground-dwellers, so the toads never got to eat the beetles and
both pests flourished. Woops.
These days, the cane toad is rapidly advancing across the tropical top end of Australia, now nearing Kununurra to the north-west and Sydney to the south (
map), competing with and preying on local wildlife, and poisoning local species, pets and people. A changing climate also means the habitat of the toad is expanding.
After making sure you've got the right toad and not a native frog, toad control people say the best way to get rid of a cane toad is to destroy them at egg stage, or, if you're too late for that, by popping them in the fridge then the
freezer for a few days. Who would've thought. I remember seeing a video in uni Conservation Biology where a guy was running them over with his Combi van; 'They explode better if you can run them over head first'. Like whacking them with a golf club, this method is not condoned by the folks who run the annual
Great Cane Toad Muster. An aside, the same video had a young girl who played dress-ups and tea parties with the toads hopping around their garden: 'I call this one Princess!' (Warty Barbie?)
I've heard about cane toad biofuel trials or toad-compost once toads have been captured, alongside the genetic modification research to try to stop them breeding in the first place. Magpies have learnt to peck out the venom glad at the back of the toad's head, and some lizards have learnt they can only eat them belly-side up to avoid the poisonous skin. This evolution and our
pest control practices are however slower than the cane toad's advancement across the tropics. So full support to anyone willing to try out what may seem like a fantastical idea. Hopefully, they taste like chicken.
Hadn't had enough of cane toads? Click here.