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 Books Poisons Beware Rat poison: time to think again

Eco Environment News feeds

  • Warmer weather has benefited some species in Britain, but others that rely on specific plants or habitats have struggled

    “Insectageddon” has not occurred, but there has been a loss of butterfly diversity over the past half a century, according to the world’s largest insect monitoring scheme.

    More than 44m butterfly sightings scientifically collected in Britain since 1976 show that of the 58 native species recorded, 33 species have declined and 25 have increased in number.

    Continue reading...

  • More than 2,200 ants were found in Zhang Kequn’s luggage at Nairobi airport, with baggage destined for China

    A Chinese national has been sentenced to a year in prison and fined by a Nairobi court for attempting to smuggle thousands of ants out of Kenya, a lucrative trade in east Africa that was exposed last year.

    The insects are mostly destined for China, the US and Europe, where they become pets and can be worth about $100 each.

    Continue reading...

  • Analysis shows whales’ coda vocalizations are ‘highly complex’ and remarkably similar to our own

    We may appear to have little in common with sperm whales – enormous, ocean-dwelling animals that last shared a common ancestor with humans more than 90 million years ago. But the whales’ vocalized communications are remarkably similar to our own, researchers have discovered.

    Not only do sperm whale have a form of “alphabet” and form vowels within their vocalizations but the structure of these vowels behaves in the same way as human speech, the new study has found.

    Continue reading...

  • With a summer glut on cards, customers are being urged to use more energy when renewables are abundant

    Great Britain is on the brink of a record-breaking summer for renewable energy, which could lead to the first periods of zero-carbon electricity in the history of the power system.

    These green milestones are an important step towards the government’s goal of creating a 95% gas-free grid by 2030 to power the electric vehicles, heat pumps and greener factories that will help the UK to reach its climate goals.

    Continue reading...

  • Exclusive: Climate action blockers including Saudi Arabia, Russia and major fossil fuel firms set to make extra $234bn by end of 2026

    The world’s top 100 oil and gas companies banked more than $30m every hour in unearned profit in the first month of the US-Israeli war in Iran, according to exclusive analysis for the Guardian. Saudi Aramco, Gazprom and ExxonMobil are among the biggest beneficiaries of the bonanza, meaning key opponents of climate action continue to prosper.

    The conflict pushed the price of oil to an average of $100 (£74) a barrel in March, leading to estimated windfall war profits for the month of $23bn for the companies. Oil and gas supplies will take months to return to pre-war levels and the companies will make $234bn by the end of the year if the oil price continues to average $100. The analysis uses data from a leading intelligence provider, Rystad Energy, analysed by Global Witness.

    Continue reading...

  • Report by Common Wealth argues rest of the world should pay for country’s transition as reparative climate finance

    Cuba could beat the US’s crippling energy blockade for ever with just an $8bn investment in renewable energy. And the rest of the world should pay for it.

    Those are the bold claims of a thinktank analysis of the embattled socialist republic’s energy policy, which claims that Cuba could show its Caribbean neighbours the way to a green energy future.

    Continue reading...

  • Prof Yasuyuki Aono’s meticulous work charted shifting bloom dates as a marker of climate change

    Even in his final months, he counted the days until the cherry blossoms. Prof Yasuyuki Aono of Osaka Metropolitan University spent his career gathering data on the spring flowering dates of cherry trees in Japan in what is one of the world’s longest climate records tracking a seasonal occurrence.

    Using sources dating as far back as the 9th century, he revealed that cherry tree flowerings have occurred progressively earlier in recent decades – a now famous marker of climate change.

    Continue reading...

  • Air pollution caused by wildfires is another blow to northern Thailand’s tourism industry as businesses suffer amid war in Iran

    The Doi Suthep temple in northern Thailand is known for its spectacular views of Chiang Mai and the lush forested mountains that surround it. Over recent weeks, though, visitors can see little of the city beyond a thick cloud of grey haze.

    Persistent wildfires have caused intense air pollution across the north of Thailand, forcing three provinces to declare emergencies and triggering spikes in pollution-related illnesses.

    Continue reading...

  • Trump’s EPA chief Lee Zeldin’s presence shows how much influence climate deniers now have, experts say

    As scientists confirmed that March was the United States’ most abnormally hot month in recorded history, dozens of climate deniers gathered to promote misinformation and tout their newfound influence on federal policy.

    At a conference hosted by the prominent science-denying thinktank the Heartland Institute last week, a crowd of mostly middle-aged men in suits claimed the world is finally waking up to the idea that the climate crisis does not exist.

    Continue reading...

  • From peak-bagging to thru-hiking, Americans have turned traversing land into personal milestones. This wilderness ranger and Indigenous writer has witnessed it firsthand

    Këmituxwe Éhènta Wehikiyànkw

    You are walking in our old homeland

    After spending 12 years backpacking some of America’s wildest trails as a wilderness ranger for the US Forest Service – and then losing that job to politics – last spring I set out for the Appalachian Trail (AT), the longest hiking-only footpath in the world.

    Continue reading...

Eco Health News feeds

Eco Nature News feeds