Rat poison: time to think again

Just as the use of insecticides does not solve a mosquito problem, vermin are not controlled by repeated use of poisons.

Rat poison lodged in letter-box. Rat poison lodged in letter-box. Photo: Vivian Grisogono

For many years, rat poison has been delivered to households all over the island in totally inadequate cellophane bags. To make matters worse, the instructions are inside, so the poison has to be handled if you want to read them. Foreign residents who do not know Croatian are at a disadvantage. One thought that the white tablet which comes with the red warfarin mixture was the antidote. Luckily, they had no occasion to try it, as the tablet is a separate poison meant for septic tanks, and has no antidote. The antidote to the warfarin is vitamin K. Warnings that the poison is about to be delivered are patchy and haphazard. While the official Stari Grad website always carries advance notice, that has not been the case elsewhere. In Pitve it was usually a small notice taped to the rubbish bin a day or two beforehand. However, during 2016 there has been an improvement in Jelsa, with warnings being given on the Council's website as well as on the Town Hall notice board.

Warning of the impending poison delivery on the rubbish bin. Photo: Vivian Grisogono

By law, vitamins have to be packaged securely, but it seems that rat poison does not. EU membership has not changed this irresponsible and dangerous custom. The bags are left apparently randomly around the villages. I have found them variously on a window sill, dangling from my post-box, even on top of my car! Delivery is clearly irresponsible. Are the poisons used in a more responsible manner? All too often, they are simply placed in heaps around a property, even where they may be a hazard to pets or young children. The safest way to put down such poisons - if you feel you must - is to use a rigid tube with access holes at either end large enough for mice or rats, but too small for other animals.

Packaged rat poison as delivered to local households. Photo: Vivian Grisogono

While vermin within buildings present a problem and possible health hazard, the same is not true of mice and rats in the wild, which have their place, not least in the natural food chain. For an insight into their lifestyles, see the video below, or click here.

Given regular doses of poison, rats become resistant, so poison is not the solution. On the other hand, although the poison is not supposed to attract other animals, it does, and cats and dogs have died through eating it. The more's the pity, as cats keep rats, mice and even snakes under control. For any major rat infestation, the best methods for avoiding the problem of resistance are to let tenacious dogs like Jack Russell terriers hunt them, or to use traps.

Rat poison delivered to a car roof. Photo: Vivian Grisogono

The local councils must spend quite a significant sum of money on distributing these poisons. Looking at the 2015 financial report from Jelsa Council, I was unable to identify exactly how much was spent on the campaigns against vermin and insects, as these items were not identified individually. Is this money being spent wisely? I think not.

In the United Kingdom, poisons against vermin are available, but are not generally distributed by local councils. They were (and maybe still are) distributed on request. Some sixty years ago, when we lived not far from London, my brother, sister and I came home from school to find an unmarked jam jar on the kitchen table. Ever adventurous, my sister delved in. “Cheesy“, she purred, and continued to satisfy her hunger. There was no fridge full of food in those days, indeed no fridge, and the larder was empty. However, Brother and I were more cautious, and refused her kind offer to share. Our mother's horror when she came home from work sometime later and asked where the rat poison was can be imagined. Sister spent the night in hospital, where diligent stomach pumping saved her life. I think that was the last time the local council left unmarked rat poison in anyone's home in an innocent-looking, insecure jam jar.

No safeguards regarding handling and storage. Photo: Vivian Grisogono

On Hvar in recent years I have managed to stop the deliveries by putting up notices round my property saying 'Otrov ne hvala' ('Poison, no thanks'), a tactic I recommend to anyone who does not want to be burdened with handling or storing hazardous substances.

My warning notice: No poisons!

Uncontrolled poison distribution is obviously hazardous. Coupled with the fact that poison is not an efficient method of controlling pests, the current policy needs to be reviewed, and practices need to be substantially improved - as a matter of extreme urgency.

© Vivian Grisogono 2016

Media

Small mammals in Wytham Woods University of Oxford
You are here: Home poisons be aware Rat poison: time to think again

Eco Environment News feeds

  • From LNG to drilling in Alaska, here’s everything you need to know about Trump’s energy and climate executive orders

    Through a flurry of executive orders, a newly inaugurated Donald Trump has made clear his support for the ascendancy of fossil fuels, the dismantling of support for cleaner energy and the United States’ exit from the fight to contain the escalating climate crisis.

    “We will drill, baby, drill,” the president said in his inaugural address on Monday. “We have something that no other manufacturing nation will ever have – the largest amount of oil and gas of any country on Earth, and we are going to use it. We’re going to use it.”

    Continue reading...

  • Instead of burning or transporting their garden waste, residents of an English village built their own composting site

    In the village of Thrupp, where houses are spread out over steep winding roads in the narrow Frome Valley, it’s difficult for lorries to get through to collect garden waste.

    It leaves some people with the choice of lengthy car trips to a nearby town to take their green waste to a facility, or burning their rubbish in small bonfires that have prompted many irate social media posts.

    Continue reading...

  • Mark Avery to stand down from role with Wild Justice but won’t completely give up campaigning, he insists

    If government ministers and civil servants are grey squirrels, they may think they can rest easy – the predatory pine marten in the Westminster jungle is leaving them in peace.

    A campaigner who has “created a landscape of fear” over the authorities’ failure to protect nature is stepping back from Wild Justice to spend more time with the wildlife – and grandchildren – in his garden.

    Continue reading...

  • As the captain of a royal research ship, I break ice to get to British stations in the Antarctic. It’s great fun - but getting stuck is always a risk

    I have been working for the British Antarctic Survey since I was 19. I started icebreaking on my first trip to the Antarctic and got hooked. Now I am the captain of the royal research ship Sir David Attenborough and I find icebreaking addictive.

    It’s unique in a maritime career to have the ability, even as a junior officer, to do quite intricate ship handling and manoeuvring at all stages. Ships break the ice continually, 24/7 – so the whole bridge team gets to do it.

    Continue reading...

  • A decade ago, up to 1,000 of the apex predators lived in one South African bay. Now they have gone, fleeing from killer whales. But the gap they have left creates problems for other species

    The first carcass of a great white, a small female, washed up in South Africa on 9 February 2017. The 2.6-metre-long body had no hook or net marks, ruling out human involvement. Whatever had killed her had vanished. So too had all the other great white sharks in Gansbaai on the Western Cape, Dr Alison Towner noticed.

    “We had several sharks acoustically tagged, and later realised three had moved as far as Plettenberg Bay and Algoa Bay, more than 500km [300 miles] east,” says the Rhodes University marine biologist.

    Continue reading...

  • The Marches, Shropshire: As the ice thins and the paths begin to stick, the ravens and owls are getting busy with their breeding season

    Up on Cyrn y Bwch (Horns of the Buck), known as Old Racecourse Common, a plateau on the edge of the Oswestry Uplands, winter comes and goes in a week. There are still white punctuation marks fallen from the rich quiet of a snow spell that feels dreamlike now as the puddle ice thins to kitchen film and paths turn claggy.

    The thaw is a kind of recall as the past returns. Mounds of heather, the grey, private memories of a heath, like an old tune muffled by bracken and birch. The racecourse grandstand ruins where 18th-century punters watched their fortunes gallop away like horses over the hills. West, the green folds of Powys. East, the sunlit plains of north Shropshire fading towards the Wrekin floating on the horizon. South, a track rolls down through conifers where a small stand of beech and oak are trapped, shadowy apparitions imprisoned in the vertical lines of the plantation.

    Continue reading...

  • The original cotton totes have a ‘disarmingly short’ life cycle – so demand is high for a more environmentally friendly version

    This year’s It bag isn’t made by any of the usual designers. And if this bag could talk, it wouldn’t say “calf leather” so much as “wash me at 40C”. What’s more, in an ideal world, you would never want to buy another again.

    The “forever tote” is big business. Usually made from calico, an unbleached cotton designed to be reused, it’s similar to the cotton bags you have balled up at the bottom of a drawer, except it’s sturdy, with a reinforced base and handles, sometimes a pocket, often coloured (Yves Klein blue seems especially popular), and always conspicuously branded with logos. Demand is high.

    Continue reading...

  • Many palm species in the city are receptive to embers, hard to extinguish – and probably helped spread the fires

    When the Los Angeles wildfires broke out on the morning of 7 January, some of the most dramatic images were of palm trees set ablaze along Sunset Boulevard. In the days that followed, burning palms became a symbol to illustrate what may be the costliest wildfires in history, which left at least 25 dead and destroyed thousands of structures.

    The trees are icons of the city. They also played a role in spreading the flames, researchers and fire officials say.

    Continue reading...

  • Fans of the flower – known as Putricia – say they are ‘obsessed’ with the plant, although they have ‘never smelt that before’

    In Sydney, word is spreading: a rare endangered plant named after a deformed penis is beginning to unfurl.

    Outside Sydney’s Royal Botanic Garden greenhouse on Thursday, a diverse crowd of hundreds has formed. International tourists wait expectantly by families and young, trendy couples. Babies are everywhere.

    Sign up for Guardian Australia’s breaking news email

    Continue reading...

  • Acronyms, in-jokes and online fan clubs spring up as viewers across the globe prepare for Sydney’s first corpse bloom in 15 years – from a safe distance

    In a Sydney greenhouse, a tall pointed flower is about to bloom for the first time in years.

    To the scientific community, the Botanic Gardens of Sydney’s corpse flower is known as amorphophallus titanum, which translates to large, deformed penis. But online, the rare endangered plant has taken on a new name: Putricia.

    Sign up for Guardian Australia’s breaking news email

    Continue reading...

Eco Health News feeds

Eco Nature News feeds