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

  • Pan Europe found several pesticide residues in 85% of apples, with some showing traces of up to seven chemicals

    Environmental groups have raised the alarm after finding toxic “pesticide cocktails” in apples sold across Europe.

    Pan Europe, a coalition of NGOs campaigning against pesticide use, had about 60 apples bought in 13 European countries – including France, Spain, Italy and Poland – analysed for chemical residues.

    Continue reading...

  • Stoke-on-Trent, Staffordshire: No finches yet and only a single thrush, but tuning into January’s sounds has revealed that nature is beginning to stir

    If my teenage son hadn’t mentioned it one grey morning this week, I’m not sure I’d have noticed, having been too caught up in the January doldrums. But he was right: there’s a new fullness to the soundscape here on our urban housing estate. “The birds just sound louder,” he said, scanning the rooftops, “more enthusiastic.”

    “Go on then, what are they?” he grinned, giving me permission to perform my party trick. I closed my eyes and listened. Sparrow. Robin. Wood pigeon. Wren. Blue tits – a bickering winter flock of them – and, there, the see-see-see of long-tailed tits.“Which one makes this sound?” he asked, and whistled a long, descending note like something falling from the sky. “They’re my favourite.” “Starling!” I said. Right on cue, one made that exact sound somewhere above us, confirming his perfect impression.

    Continue reading...

  • More than 300 brown hairstreak butterfly eggs discovered near Llandeilo this winter after decade of decline

    Record numbers of eggs of the rare brown hairstreak butterfly have been found in south-west Wales after landowners stopped flailing hedges every year.

    The butterfly lays its eggs on blackthorn every summer. But when land managers and farmers mechanically cut hedges every autumn, thousands of the eggs are unknowingly destroyed.

    Continue reading...

  • This week’s best wildlife photographs from around the world

    Continue reading...

  • Projects in development expected to grow global capacity by nearly 50% amid growing concern over impact on planet

    The US is leading a huge global surge in new gas-fired power generation that will cause a major leap in planet-heating emissions, with this record boom driven by the expansion of energy-hungry datacenters to service artificial intelligence, according to a new forecast.

    This year is set to shatter the annual record for new gas power additions around the world, with projects in development expected to grow existing global gas capacity by nearly 50%, a report by Global Energy Monitor (GEM) found.

    Continue reading...

  • Emergency pumps are deployed in attempt to stop water inundating homes around River Parrett

    Since medieval monks started draining and managing the Somerset Levels, humans have struggled to live and work alongside water.

    “At the moment it feels like a losing battle,” said Mike Stanton, the chair of the Somerset Rivers Authority.“Intense rainfall is hitting us more often because of climate change. It may be that in the next 50 years, perhaps in the next 20, some homes around here will have to be abandoned.”

    Continue reading...

  • Despite no criminal charges being brought against them, four officers have been detained since the MV Dali struck the Francis Scott Key Bridge, killing six workers

    Several crew members of a ship that collided with a bridge in Baltimore almost two years ago are still being held in the US by federal authorities despite the fact that no criminal charges have been brought against them.

    In the early hours of 26 March 2024, the MV Dali departed the port of Baltimore bound for Sri Lanka. While navigating the Fort McHenry channel, the 1,000ft-long Singapore-flagged cargo vessel lost power before striking the bridge. The impact resulted in the deaths of six people who were working on the bridge at the time.

    Continue reading...

  • Plastics make up the majority of litter across the country. In the absence of regulation, the public are taking matters into their own hands

    Neil Blake weighs a paper bag of fake grass fragments he has collected from a stormwater gutter near Darebin Creek in Melbourne’s north.

    Over the past three years Blake has conducted 56 collections of synthetic turf in the waterway alongside the KP Hardiman Reserve hockey pitch.

    Continue reading...

  • Experts say administration has launched ‘war on all fronts’ to undo environmental rules – here are the key areas at risk

    In his first year back in office, Donald Trump has fundamentally reshaped the Environmental Protection Agency, initiating nearly 70 actions to undo rules protecting ecosystems and the climate.

    The agency’s wide-ranging assault on the environment will put people at risk, threatening air and water quality, increasing harmful chemical exposure, and worsening global warming, experts told the Guardian. The changes amount to “a war on all fronts that this administration has launched against our health and the safety of our communities and the quality of our environment,” said Matthew Tejada, the former director of the EPA’s environmental justice program.

    Continue reading...

  • When temperatures drop suddenly, trapped water can freeze and expand, splitting trunks with a gunshot-like sound

    During the recent cold spell in the northern US, meteorologists issued warnings about exploding trees.

    A tree’s first line of defence against freezing is its bark, which provides efficient insulation. In cold conditions, trees also enter a form of hibernation, with changes at a cellular level: cells dehydrate, harden and shrink, increasing their sugar concentration. This is the botanical equivalent of adding antifreeze, helping to prevent the formation of ice crystals.

    Continue reading...

Eco Health News feeds

Eco Nature News feeds