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 For the common good Poisons Beware Rat poison: time to think again

Eco Environment News feeds

  • Vast swathes of the country’s trees have been killed off by droughts and infestations, in a trend sweeping across Europe. A shift towards more biodiverse cultivation could offer answers

    Even the intense green of late spring cannot mask the dead trees in the Harz mountains. Standing upright across the gentle peaks in northern Germany, thousands of skeletal trunks mark the remnants of a once great spruce forest.

    Since 2018, the region has been ravaged by a tree-killing bark beetle outbreak, made possible by successive droughts and heatwaves. It has transformed a landscape known for its verdant beauty into one dominated by a sickly grey.

    Continue reading...

  • Abernethy Forest, Cairngorms: Thanks to a local collaborative effort, linnets, bramblings, green and goldfinches are coming to this field in joyful flocks

    It’s -6C and I’m off to what has been a regular haunt recently – a field planted by Speyside Fields for Wildlife. This is a small, community-run charity that works with local farmers, crofters and others to take over “spare” fields and land for wildlife-friendly crops.

    Some sites are planted with annuals such as cornflower, corncockle, marigold and poppy – important sources of pollen, nectar and flowers that used to grow among the grain crops before herbicides became commonplace. Others, such as this one on a hill farm, have been planted with seed crops that benefit birds and other wildlife during autumn and winter.

    Continue reading...

  • Study of 1,000 products finds wet, raw and meat-rich products have higher climate impact than dry kibble

    Dog food accounts for 1% of the UK’s total greenhouse gas emissions, according to research that found wet, raw and meat-rich products were associated with substantially higher emissions than dry kibble.

    The analysis revealed striking differences in the environmental impact of commercial dog foods, with the highest-impact foods being responsible for up to 65 times more emissions than the lowest-rated options.

    Continue reading...

  • Shift from ‘big 5’ imports to British fish such as sprats and sardines would help diets and the planet, say researchers

    Supermarkets could help to support British consumers to move away from their reliance on mainly imported seafood – the “big 5” of cod, haddock, tuna, salmon and prawns – to more sustainable, nutritious and locally caught fish such as sardines and anchovies, researchers say.

    A study by the University of East Anglia (UEA), which confirmed previous research showing consumers did not eat the recommended amount of fish in their diet, suggests the UK could be overlooking a major opportunity to improve national health as well as bolstering local economies by embracing its own rich populations of nutritious small fish.

    Continue reading...

  • Scientists also name an overlooked snowdrop growing in the UK and a fruit that tastes like banana and guava

    A zombie fungus that springs from a trapdoor and a flame-like shrub named after the fire demon in the Studio Ghibli film Howl’s Moving Castle are among the species of plant and fungi named by scientists in 2025.

    A list of 10 “weird and wonderful” new species was compiled by scientists at the Royal Botanic Gardens (RBG), Kew and their international partners, who together named 125 new plants last year. The list also includes an orchid whose flowers look bloodstained and attract sexually aroused flies, and a beautiful snowdrop that had been hiding in plain sight in UK gardens.

    Continue reading...

  • Outcome of aggression will determine whether rare earths and other resources drive energy transition – or strengthen US military power and oil interests

    The US’s first overt attack on an Amazon nation last weekend is a new phase in its extractivist rivalry with China. The outcome will decide whether the vast mineral wealth of South America is directed towards a 21st-century energy transition or a buildup of military power to defend 20th-century fossil fuel interests.

    Although this onslaught was ostensibly aimed at one corrupt dictatorship in a miserably dysfunctional country, the ramifications are far wider.

    Continue reading...

  • The practice is ‘much more widespread’ than previously realised, researchers say, with serious environmental impact

    The household burning of plastic for heating and cooking is widespread in developing countries, suggests a global study that raises concerns about its health and environmental impacts.

    The research, published in the journal Nature Communications, surveyed more than 1,000 respondents across 26 countries.

    Continue reading...

  • Sandbanks can shift position during winter storms, but sonar mapping means charts can now be updated immediately

    Offshore sandbanks are a particular navigation hazard because, unlike rocks and reefs, they have a habit of shifting position during winter storms.

    The Goodwin Sands is a 10-mile (16km) bank off the coast of Deal in Kent, close to the busy shipping lanes of the Dover strait. The sands have claimed about 2,000 vessels over the years. In 1634, two lighthouses were set up on South Foreland for sailors to follow a safe route through.

    Continue reading...

  • A year after the Eaton fire, residents returning to Altadena confront lingering contamination and little official clarity

    One year on from the Eaton fire, long after the vicious winds that sent embers cascading from the San Gabriel mountains and the flames that swallowed entire streets, a shadow still hangs over Altadena.

    Construction on new properties is under way, and families whose homes survived the fire have begun to return. But many are grappling with an urgent question: is it safe to be here?

    Continue reading...

  • Across Africa, baobabs have rich symbolic meaning, but the breakneck expansion of the DRC’s capital has reduced their number in the city centre to one

    The older inhabitants of Kinshasa can remember when trees shaded its main avenues and thick-trunked baobabs stood in front of government offices.

    Jean Mangalibi, 60, from his plant nursery tucked among grey tower blocks, says the capital of the Democratic Republic of the Congo’s frenzied expansion has all but erased its greenery. “We’re destroying the city,” he says, over the sound of drilling from a nearby building site.

    Continue reading...

Eco Health News feeds

Eco Nature News feeds