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

  • Exclusive: Sir Paul Marshall’s climate views and those broadcast on GB News said to be ‘in direct opposition’ to those of Church of England

    The co-owner of GB News, a British TV channel accused of broadcasting climate change denial, has donated £28m to influential Church of England institutions that support climate action.

    This raises “serious questions”, say Christian leaders, given that Sir Paul Marshall’s views on the climate crisis and those frequently broadcast on the TV channel are “in direct opposition” to the Church of England, which believes that “responding to the climate crisis is an essential part of our responsibility to safeguard God’s creation and achieve a just world”.

    Continue reading...

  • The species is abundant within the protected archipelago but when they migrate outside the marine reserve to give birth they run the gauntlet of industrial fishing

    The unmistakable fluted T-shape of a scalloped hammerhead shark slides by, followed by a diver holding his breath and a metal spear like an extra-long snooker cue. The spear hits the fish behind its dorsal fin and the 2-metre shark darts away, disgruntled but otherwise unharmed.

    Carlos Robalino, a marine biologist from the Galápagos Islands, trained as a shark researcher in Mexico but is now back home and working as a junior researcher at the Charles Darwin Foundation. When we meet in March, he is one of the divers on the foundation’s research expedition to Darwin and Wolf, the most northerly islands in the Galápagos marine reserve.

    Continue reading...

  • Third of world’s energy needs should come from electricity by 2035, says Murat Kurum, as priorities set out for this year’s UN climate summit

    The world should aim to meet a third of its energy needs from electricity within a decade to cut greenhouse gas emissions, the host of the next UN climate summit has said.

    While about a third of global electricity generation already comes from renewable sources, other energy-intensive sectors – chiefly transport, heating and industries – have lagged behind. Close to four-fifths of final energy still comes from fossil fuels, as a result.

    Continue reading...

  • JPMorgan Chase leads 65 banks making decisions incompatible with restraining rising temperatures, researchers say

    The world’s largest banks committed $906bn in financing to the fossil fuel industry last year, an “unfathomable” increase in investment locking in years more of coal, oil and gas production as the world continues to overheat, a new report has found.

    The surge in new fossil fuel lending, up $64bn or nearly 8% on 2024, shows that the world’s largest 65 banks are making decisions incompatible with international agreements to restrain rising global temperatures, according to the coalition of environmental groups behind the new analysis.

    Continue reading...

  • The bottom of the ocean has barely been explored, but every journey to the deep reveals wondrous new lifeforms. As underwater mining gains momentum, we risk destroying one of the Earth’s last great wildernesses

    On 8 March 2014, at 1.20am, Malaysian Airlines flight 370 veered off its scheduled route from Kuala Lumpur to Beijing. An hour later, military radar spotted the plane heading west over the Andaman Sea. Six or seven hours later, it is presumed to have crashed somewhere over the southern Indian Ocean, one of the least studied bodies of water in the world.

    Just how little we knew about this part of the ocean became clear during the subsequent search for the missing aircraft. Before a proper underwater search could even begin, a vast stretch of seafloor had to be mapped. Over the next three years, a team of ships from Australia, China and Malaysia scanned the bottom with a combination of submersible robots and ship-borne sonar. Together, they charted a swath of ocean roughly 1,500 miles long and 150 miles wide, encompassing an area the size of France. The maps produced from these scans revealed a lost world, full of undersea canyons, crevasses, volcanic plateaux and a single, enormous cliff taller than the Swiss Alps. Even the abyssal plains, thought to be some of the flattest areas on the planet, were home to previously uncharted hills.

    Continue reading...

  • Brigg, Lincolnshire: With harvest approaching, we’re putting the glorious long evenings to good use, and both humans and insects are working hard to protect the crops

    There’s something magical about the long evenings in June, the warmth and the way the setting sun casts long shadows across the fields. The extra hours are much-needed though as there is plenty to do.

    We’re in the run-up to harvest in July, so if the weather is dry we walk up and down the seed crop tramlines, pulling out (rouging) unwanted wild oats, brome and blackgrass. They drop seeds that could contaminate not only our ground, but potentially someone else’s. Strict numbers govern how many of such plants are allowed per hectare in a seed crop, and independent inspectors check the results. Government officials in the Animal and Plant Health Agency will even walk the higher quality seed crops.

    Continue reading...

  • Global effort needed to limit effects of pollution, industrial fishing and climate crisis, World Ocean Assessment says

    The world’s oceans are under “severe and accelerating” pressure from human activities, with the rate of sea-level rise double that of a decade ago, according to a damning assessment from the United Nations.

    The “intensifying” stressors, which include pollution and large-scale industrial fishing, are cumulative, said the report, resulting in widespread biodiversity loss and putting ocean systems under “severe strain”.

    Continue reading...

  • Pacoima is hemmed in by highways and heavy industry, and its residents are fighting pollution with hyperlocal air quality monitoring

    Jose Luis Salas looks up at the ladder. “Are you ready?” he asks Shance Taylor, an environmental project manager who’s holding a white container, about the size of a shoebox, covered with wires and numbers.

    Taylor nods and climbs up to reach the side of Salas’s tidy house in Pacoima, a neighborhood in Los Angeles’s north-east San Fernando valley. The curious box in their hands is known as Aeroqual sensor – part of a community air-quality monitoring program run by Pacoima Beautiful, a local environmental group.

    Continue reading...

  • ‘Twitchers’ rush to coastal Western Australia to see black-headed gull, which usually flies between Europe and Asia

    A lone seabird has caused a stir in the nation’s birdwatching community after landing on the Western Australian coast, thousands of kilometres off its usual migratory flight path.

    The black-headed gull, which usually flies between Europe and Asia, has been spotted in the coastal city of Geraldton.

    Continue reading...

  • Marine biologist Issah Seidu has found a way for Ghana’s fishing communities to earn a living – and help protect the ancient and critically endangered fish species

    Guitarfish are an odd-looking and ancient species, with the tail of a shark and the flattened body of a ray, but their coveted fins have driven populations to the brink of extinction. In west Africa, where their meat is also a local delicacy, many guitarfish species are among the most critically endangered fish in the ocean.

    Conservationists at the International Union for the Conservation of Nature (IUCN) describe the slow-maturing ray, which produce young annually, as an “indicator species”, which reflect the overall health of an ecosystem and pose challenges in the way coastal fishing of them is managed. The IUCN red list categorises more than half of guitarfish species as critically endangered.

    Continue reading...

Eco Health News feeds

Eco Nature News feeds