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

  • Monday predicted to be hottest May day on record by large margin, as UK braces for ‘super El Niño’ summer

    Temperatures are expected to hit 35C in parts of England on Monday, in an “unprecedented” May heatwave.

    The Met Office is already predicting that records will be broken. A spokesperson said: “Today will be the hottest day in May in the UK in our temperature records, with highs of 35C expected. The current May record is 32.8C. Records are usually only broken by tenths of a degree, making this heatwave unprecedented for the time of year.”

    Continue reading...

  • Rain overwhelms sewer system in parts of US city, while temperatures in France break May record

    New York City saw flash flooding on Wednesday, as large parts of Brooklyn and Queens received about 2in (50mm) of rainfall in as little as 20 minutes. Officials said the deluge caused water to flow into the sewer system at a rate of up to 6in an hour, quickly overwhelming an aged network that was designed to accommodate just 1.75in an hour.

    Residents and commuters found themselves wading knee-deep through flood water that flowed with dangerous speed in places. One video showed a woman alighting from a bus losing her footing and being dragged along by the torrent of water. Several major roads were blocked, including the Long Island Expressway, and subway services were disrupted as water spilled into stations. Large amounts of mud and other debris was left behind; videos showed bags of rubbish being swept down streets along with loose litter.

    Continue reading...

  • Most people have joyful memories of playing outside as children – and now wildlife charities are urging people to ‘rewild their inner child’

    Climbing trees, squelching in mud, paddling in ponds or making dens in the woods – people’s memories of playing outside as children are often vivid and, a new poll has found, overwhelmingly positive, even those who remember falling in cowpats.

    Almost 90% of UK adults had rosy memories of the excitement and the feeling of freedom that outdoor play had brought them, the survey found. However, almost half of adults now spend less than three hours a week in natural settings such as gardens, parks, fields or woods, according to the survey. For one in 10 it is less than one hour.

    Continue reading...

  • Charter to be adopted along river’s entire catchment from Cambrian mountains to Chepstow and Bristol Channel

    The entire catchment of the River Wye has been formally recognised as a living ecosystem with intrinsic rights in a charter, a UK first that campaigners hope will help save the highly polluted river.

    The charter was celebrated at a community event at the Hay-on-Wye literary festival on Sunday. It includes the right to flow, to biodiversity, to be free from pollution, to be supported by a healthy catchment, to regenerate, and the right to be represented, described as a “significant step” towards protecting and restoring one of the UK’s most beloved rivers.

    Continue reading...

  • Definition of green facilities made in 2022, before release of ChatGPT, says Action to Protect Rural Scotland

    A Scottish government policy designed to encourage datacentres to build in Scotland could lead to a massive volume of carbon emissions being ignored, according to an analysis by a Scottish charity.

    “Green datacentres” are at the heart of Scotland’s ambitions to develop economically. Enshrined in national policy, they are part of a larger, UK-wide effort to attract big AI investment to Scotland.

    Continue reading...

  • Talybont, Ceredigion: On a crisp, post-rain morning, I take a walk among bright hawthorn blossom and the glittering pools of Cors Fochno

    On the edge of Talybont, the small cemetery, kempt and cared for, overlooks the coast and the wild brown swathe of Cors Fochno (Borth Bog). A burial ground is perhaps an odd place to begin a walk, but, as a friend remarked, it’s infinitely better than ending one there.

    The early rain has cleared so the air is crisp and the colours deep. In the foreground, grassland fields slope away towards the wild expanse of the bog, bounded by wooded hedgerows bright with hawthorn blossom. The first cut of silage has been secured, baled and removed, and a few cattle are grazing the aftermath with interest while red kites traverse overhead. The surface of the bog, marked here and there by glittering open pools, shimmers slightly in the heat of the day. Across the Afon Dyfi, the steep-faced sand dunes of Aberdyfi are visible before the eye is drawn further off to the line of hills that defines the Llŷn peninsula.

    Continue reading...

  • Temperature reaches 30.5C in Kent as amber health alerts issued before bank holiday temperatures rise

    The UK has recorded its hottest day of the year so far, with temperatures reaching 30.5C in Kent as forecasters warned more extreme heat could follow over the bank holiday weekend.

    The temperature in Frittenden also marked the first time since 2012 the UK has reached 30C in May, according to the Met Office.

    Continue reading...

  • Technological interventions face huge financial or practical challenges, but there is another way

    In 2019, my scientific research was nearly brought to an early end when my team and I published the bombastic statement that natural forest restoration was the “best climate change solution” available in a paper for the peer-reviewed journal Science.

    I remember a colleague from the World Wildlife Fund advising me that this message represented career suicide. He argued that people would be furious because reducing greenhouse gas emissions was the most urgent priority. The revival of nature might help with 30% of our carbon drawdown needs, but you cannot stop rising temperatures without cutting emissions.

    Continue reading...

  • The Martuwarra Fitzroy catchment is home to four of the world’s five sawfish species, which rely on large groundwater-fed pools to survive the dry season

    Conservationists fear a government plan to double groundwater extraction from the Martuwarra Fitzroy River catchment in Western Australia could jeopardise threatened sawfish populations.

    The untamed river, which flows 700km through the Kimberley to King Sound, is considered the last stronghold for sawfish globally and is home to four of the world’s five species.

    Continue reading...

  • Firefighters are racing to douse flames on California’s Santa Rosa Island as experts express concern for unique habitat

    On the south-eastern corner of Santa Rosa Island lies a grove of a few thousand Torrey pine trees, some of them more than 250 years old. The only other place on earth where these gnarled pines exist is in San Diego county, but biologists classify the two groves as different subspecies. So when a rare wildfire broke out on Santa Rosa Island late last week, firefighters raced to keep it from spreading into the grove, where it threatened to consign the island’s Torrey pines to extinction.

    So far, they appear to be succeeding – even as the 18,000-acre fire has torched nearly one-third of the island’s surface. But biologists who have studied Santa Rosa Island’s unique ecology are watching anxiously as the fire continues to burn a part of the island that is home to six plants found nowhere else on the planet.

    Continue reading...

Eco Health News feeds

Eco Nature News feeds