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 highlights Poisons Beware Rat poison: time to think again

Eco Environment News feeds

  • Oxfam says investing by rich in disaster recovery widens inequality and gives incentive to delay climate action

    The world’s wealthiest people are not just profiting from the polluting causes of climate breakdown, they are also increasingly cashing in on the catastrophic consequences, according to a study by Oxfam.

    The global equality organisation has found that the richest 0.1% of the world’s population are heavily invested in disaster preparedness, recovery and reconstruction – a market that is projected to grow from $70bn to $92bn a year by 2029.

    Continue reading...

  • Letter to PM argues series of wrong choices on North Sea oil, Heathrow, EVs and heat pumps will scupper net zero plans

    Andy Burnham will “sleepwalk” into climate disaster if he fails to get a grip on a series of important policies whose combined impact could scupper plans to reach net zero, campaigners have said.

    Big decisions on North Sea drilling, the expansion of Heathrow airport, electric vehicles (EVs) and grants for heat pumps are awaiting decisions from ministers.

    Continue reading...

  • Investigation finds dozens of ministers and civil servants moved into AI roles as government developed datacentre expansion plans

    The UK’s policy on datacentres and AI was developed without any meetings with environmental groups, an investigation has found.

    The nonprofit organisation Spotlight on Corruption said a “considerable revolving door” shaped the government’s development of “AI growth zones”, a central plank of the former prime minister Keir Starmer’s AI and economic policy, with 38 ministers, senior civil servants and special advisers hired to positions in AI companies between July 2024 and September 2026.

    Continue reading...

  • Calf of Man, Isle of Man: Such is the wealth of Manx fungi, a map is being built to plot it all. We took a special trip as part of that project

    The bird observatory on the Calf of Man was sulking under a low cloud base as we stepped ashore at South Harbour. The dank mist was perfect for our surprise visit to the island, as it was not for the birds we had come across, but fungi – in particular, waxcaps.

    My wife, Liz, and I had taken the chance to accompany Nev Kilkenny, a visiting mycologist, who would help identify and study some autumn mushrooms and toadstools – and contribute to a map that is being assembled of Manx fungi.

    Continue reading...

  • V2G tech enables drivers to charge automatically when electricity is cheaper and then sell some back to the grid at times of high demand

    Electric cars that can be used as “power plants on wheels” could be given government backing as part of plans under consideration to help UK manufacturers.

    Ministers are considering giving manufacturers incentives to add “vehicle to grid” (V2G) technology to cars as part of its review of the zero-emission vehicle (ZEV) mandate.

    Continue reading...

  • Chancellor is in favour of North Sea project, but energy secretary has said she is leaning towards rejecting it

    A cabinet split has emerged over whether to approve drilling at the Rosebank oilfield, with the chancellor, John Healey, in favour of the controversial North Sea project.

    The energy secretary, Miatta Fahnbulleh, is ultimately in charge of the decision, and the Guardian reported last week that she was leaning towards rejecting it after granting permission for the smaller Jackdaw gasfield.

    Continue reading...

  • Concrete sprawl in Yaoundé has devastated the city’s trees and parks, so volunteers are stepping up, shrub by shrub

    A little piece of paradise is buried under the asphalt that is now lined with parked cars. The romantic spot where Sosthène Hugues Ngono used to bring his first dates had been green and beautiful. “It wasn’t just a park,” he says, standing at the edge of what is now a private car park in Cameroon’s capital, Yaoundé.

    “It was where I came to clear my head when things felt confused,” he says. “Where I met people; where I fell in love, more than once.”

    Continue reading...

  • All it took was one or two careless teenage girls giving the vermin a taste of their snacks and they became the most well-fed animals imaginable

    I’ve written a fair amount about my boarding school years in Nigeria in the 90s, but never about the rats that accompanied my school experience. Picture it: thousands of girls from across the country, each bearing a suitcase or two of a term’s worth of “provisions” – cornflakes, sugar cubes, powdered milk, hot chocolate powder, and so on. All it took was one or two careless girls giving the rats a taste of the exotic and they became among the most well-fed rats in the country, enjoying a steady stream of delicious teenage-girl snacks.

    I will never forget the sight of rats – six or seven deep – congregating at dusk on the scraggly lawn next to my dormitory, like an illegal gathering of political dissidents. They were large (what with their rich diet), thick tails twitching, noses pushed together, damn near whispering. At first, they would scatter when humans approached. Then we had to clap and stomp to get them to shift. Like the proletariat, the rats began to understand their power, and stand their ground. They were no longer pests but now a sort of predator. If this sounds like the beginning of a highbrow horror, that’s how it felt.

    Continue reading...

  • Company imitates reflection of sun from mirrors, prompting pushback from some scientists, environmentalists and California locals

    Locals in a rural area of California were recently startled to see dazzlingly bright light shining down from nearby mountains at night, illuminating a swathe of the desert below.

    Unbeknown to them, the strange nocturnal illumination was the latest step in a company’s plan to erect thousands of giant mirrors in space to reflect sunlight on to the Earth during night-time.

    Continue reading...

  • Queensland researchers say a published study contains ‘silly mistake’ that over-inflates vaccine’s efficacy but the regulator is standing by decision to approve it

    At wildlife hospitals across eastern Australia, many koalas brought in have distinctive brown patches on their bottoms – a sign of urinary incontinence and a painful inflamed bladder. Others have red, weeping eyes, pointing to a bacterial disease that can cause blindness in the endangered marsupials.

    Chlamydia infection, also known as chlamydiosis, is the most significant disease affecting the animals. The culprit is most commonly the bacterium Chlamydia pecorum, which is spread via mating or close contact.

    Continue reading...

Eco Health News feeds

Eco Nature News feeds