Insect spraying: the 'fogging' practice

Would I find myself driving home through a mist of toxic chemicals if I caught the 20:30 ferry back from Split? That was the question on 27th September 2017.

Kill is no cure. Kill is no cure. Vivian Grisogono

The insect suppression 'fogging' action was to take place in the Jelsa region, starting at 10pm and lasting until 4am the following morning. Arriving in Stari Grad at 22:30 that evening might just put me in the wake of the 'fogging' vehicle if we coincided on the road to Pitve. Knowing the extremely potent cocktail which was being used in 2017 (a combination of two dangerous pyrethroids, Permethrin and Tetramethrin, and a synergist, Piperonyl Butoxide, which carried risks of its own), the thought of being suffused in it did not appeal. One evening in 2012, I was walking back to the car park in Hvar Town, when just a little way in front of me there was a violent hissing sound, and a misty cloud suddenly belched out to either side of a cumbersome van. Behind the van was a car and a motorbike, as well as a group of pedestrians. As the 'fogging' vehicle left town, several more cars followed it. As none could overtake it, they all crawled up the hill in a sad line steeped in swirling toxins. That year the two pyrethroid poisons used in combination were Permethrin and Cypermethrin. Each year pyrethroid pesticides have been applied across the environment, usually at least three times during the summer season. Pyrethroids are dangerous for humans, animals, and the environment, and of course are especially toxic for bees. As the exact route and timings of the 'fogging' are not published, it is impossible to plan one's movements to avoid the 'fogging' vehicle if one happens to be out and about during that night.

'Fogging', Hvar Town 30th July 2012. Photo: Vivian Grisogono

Insect suppression programme definitely futile

The morning after this September's 'fogging', it's a lovely sunny day in Pitve. A sparrow perches on my fence, looking a bit forlorn. Have they killed off his breakfast? Looking again, I can see swarms of insects milling around. Lots of flies and mosquitoes go about their business with vim and vigour. Clearly the attempted cull has failed. But how much collateral damage has it done? Personal experiences of the insect suppression programme indicate that the mosquitoes which survive are resistant, angry and increasingly virulent. The poisons which reach them inevitably create changes in their systems. And then there are the unwanted effects on non-target insects, especially bees.

Mosquitoes bite, OK?

Thousands of people get bitten by many thousands of mosquitoes in Croatia every year. According to official statistics, mosquito-borne diseases are not a problem. The few isolated cases of Malaria and Dengue Fever, for example, are mainly imported, usually by sailors returning from tropical countries. In countries where mosquito-borne diseases are endemic, experience has shown that trying to suppress the insects with insecticides is ineffective and counter-productive, as they rapidly become resistant to every poison used.

Mosquito at work. Photo: Vivian Grisogono

Mosquito bites are irritating, but the vast majority do not cause disease. Irritation is not a reason to eliminate a species, even if it was possible. Anyway, it is not possible, and pesticide use is simply increasing pest numbers, not reducing them. I used to be very sensitive to mosquito bites, now I am not. The change came when I started taking a vitamin B complex supplement daily. I still get bitten, but the bites do not cause significant irritation, and the marks disappear from my skin very quickly. This may not work for everyone, but it has certainly worked for many people I know.

Mosquito bite, Pitve, 28th September 2017. Photo: Vivian Grisogono

'Fogging' on Hvar

As already stated, details of the 'fogging' routes are not publicized. Having seen it, we at Eco Hvar only know for sure that the vehicle leaves Hvar Town along the road past the Police Station. In the Jelsa region it passes along the road through Vitarnja between Jelsa and Vrboska; and it goes through Gornje Pitve towards the Zavala tunnel. As it goes through Upper Pitve, it passes very close to the houses by the road, spraying the poisons at a height. The poisons therefore reach parked cars, the local rubbish bin, patios where children play and families eat their meals, gardens with fruits, vegetables, chickens and goats, wine cellars, food stores, kitchens, living rooms and bedrooms. As the warning notice posted in Jelsa on the Town Hall notice board  is seen by almost no-one, and the summer nights are hot, many people do not close their shutters.

The route through the centre of Upper Pitve

Even if we avoid direct contact with the 'fogging' vehicle, we cannot avoid coming into contact with the poisons. We breathe them in, they enter our bodies through skin contact. They don't just disappear into thin air, having done their work on the target insects during the night. The poisons settle on the surfaces where they are sprayed, and can spread over a wider area if the night is windy. The poison effects are extended for some time, possibly several days after the 'fogging' has taken place. The damage they do is not limited to the mosquitoes which are their main target victims.

The road leading towards the Pitve-Zavala tunnel

The morning after the September 2017 fogging I go down to my car, which, being parked by the road, has received a goodly dose of the poison spray. Having walked down the road, I must have picked up some poison on my shoes. I find a praying mantis fighting its shadow on the car door: has it been maddened by the poisons? Opening the door of the car, my hand is probably contaminated. The inside of the car may well have been penetrated: how much poison residue am I breathing in or touching as I drive off? The awareness is uncomfortable, much more disturbing than normal mosquito bites.

Praying mantis, 28th September 2017. Photo: Vivian Grisogono

It's time for change

Insect suppression using chemicals is not achieving its aim in Croatia and other countries. By law, there should be proper warning about the 'fogging'. It takes place during the summer season when the population of Hvar Island is multiplied several times over with guests from many different parts of the world. Locals are ill-informed, foreigners have no warning at all. Ignorance is bliss, but keeping people in the dark about an obviously dangerous practice is unacceptable and unforgiveable. Two days after the 'fogging' in our area, a shocked friend from Vrisnik reacted to the news of the spraying: "I've been eaten alive by mosquitoes all day yesterday!" When asked (by e-mail) whether she knew that her area had been sprayed two nights previously, a Stari Grad resident responded with horror: "S**t, I had no idea!!!!" 

The law and the practice urgently need to be reviewed and revised.

© Vivian Grisogono MA(Oxon), September  2017, updated January 2022

NOTES:

In February 2021 I sent a sample of my hair to be analysed for pesticides. Three were identified as being present in my system: azoxystrobine, a fungicide; glyphosate, the active ingredient in Roundup and other herbicides; and permethrin, the insecticide used over many years for the fogging actions, which is also used in household fly killers and anti-flea collars for dogs. As I do not use chemical pesticides, the presence of these potentially harmful substances is a very worrying indication of how badly our environment is contaminated and how much we are exposed to the poisons being used around us. The analysis was done by the Kudzu laboratory in France.

Details of the poisons used for the 'fogging'and their possible adverse effects: Pesticides, and their adverse effects; and  Pesticide Products in Croatia

Details of the insect suppression programme in Croatia and some of its failings: Poisoning Paradise, A Wake-Up Call

For more about the insect suppression programme over the years, please see our companion articles:

Insect Spraying: Save the Bees! (Eco Hvar, 2017, updated September 2021)

Insect Spraying: Rethink Needed (Eco Hvar, August, September 2017, updated September 2021)

Insect Spraying: The Campaign (Eco Hvar, 29th August 2017)

Insect Spraying: Pros and Cons (Eco Hvar, August 2014, updated September 2021)

Insecticides in the Air (Eco Hvar, 5th April 2016, 23rd July 2017)

Hvar's Health Tourism (Total Hvar 1st August 2012)

Bobi, the Dog Who Didn't Need to Die (Eco Hvar, 20th July, 4th September 2017.)

Some comments received via the Eco Hvar Facebook page:

DV: is this continuing? What about the bees? Not good. (29.09.2017., 17:35)

Eco-Hvar: Sadly, yes, continuing and escalating as horror stories do. But people are gradually coming to realise what's happening. No normal person finds the situation acceptable! We are pressing for change. (29.09.2017., 20:51)

DV: Precious tourists...... every organism has a purpose and if one removes it from the ecosystem.....something else will take that niche. There are natural insect repellents that can be used with out total destruction (30.09.2017., 07:59)

Eco-Hvar Yes, people are gradually coming to that realisation. It's a slow process changing mindsets, but we have to keep trying! (30.09.2017., 09:29)

JE This is shocking and so shortsighted. (01.10.2017., 16:15) Sad

 

 

 

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  • EDITOR’S NOTE:Few places on Earth are as evocative — or as imperiled — as the vast grasslands of sub-Saharan Africa. In a new Conservation News series, “Saving the Savanna,” we look at how communities are working to protect these places — and the wildlife within.

    MARA NORTH CONSERVANCY, Kenya — Under a fading sun, Kenya’s Maasai Mara came alive.

    A land cruiser passed through a wide-open savanna, where a pride of lions stirred from a day-long slumber. Steps away, elephants treaded single-file through tall grass, while giraffes peered from a thicket of acacia trees. But just over a ridge was a sight most safari-goers might not expect — dozens of herders guiding cattle into an enclosure for the night. The herders were swathed in vibrant red blankets carrying long wooden staffs, their beaded jewelry jingling softly.

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    Lions tussle in the tall grass of Mara North Conservancy.

    But elsewhere in Africa, the conservancy model has remained far out of reach.

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    “We’re always looking for creative new ways to pay for conservation efforts that last,” Stauch said. “This is really a durable financing mechanism that puts money directly in the pockets of those who live closest to nature — giving them a leg up. And it’s been proven to work in the direst circumstances imaginable.”

    © Will McCarry

    Elijah Toirai explains current conservancy boundaries and potential areas for expansion.

    Creativity from crisis

    In 2020, the entire conservancy model almost collapsed overnight.

    “No one thought that the world could stop in 24 hours,” said Kelvin Alie, senior vice president and acting Africa lead for Conservation International. “But then came the pandemic, and suddenly Kenya is shutting its doors on March 23, 2020. And in the Mara, this steady and very well-rounded model based on safari tourism came to a screeching halt.”

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    © Will Turner

    A black-backed jackal hunts for prey.

    “But then the nature finance team at Conservation International — these crazy guys — came up with a wild idea,” Alie said. “In just six months they put this entirely new funding model together: loaning money at an affordable rate to the conservancies so that they can continue to pay staff and wildlife rangers.”

    Conservation International and the Maasai Mara Wildlife Conservancies Association launched the African Conservancies Fund — a rescue package to offset lost revenues for approximately 3,000 people in the area who rely on tourism income. Between December 2020 and December 2022, the fund provided more than US$ 2 million in affordable loans to four conservancies managing 70,000 hectares (170,000 acres).

    The loans enabled families in the Maasai Mara to continue receiving income from their lands to pay for health care, home repairs, school fees and more. And because tourism revenues — not government funding — support wildlife protection in conservancies, this replacement funding ensured wildlife patrols continued normally, with rangers working full time.

    Born out of this emergency, we discovered a new way to do conservation.

    Elijah Toirai

    “The catastrophe of COVID-19 was total for us,” said Benard Leperes, a landowner with Mara North Conservancy and a conservation expert at Maasai Mara Wildlife Conservancies Association. “Without Conservation International and the fund, this landscape would have not been secured; the conservancies would have disintegrated as people were forced to sell their land to convert it to agriculture.”

    But it was communities themselves that proved the model might be replicable after the pandemic ended.

    “The conservancies had until 2023 before the first payment was due,” Toirai said. “But as soon as tourism resumed in mid-2021, the communities started paying back the loans. Today, the loans are being repaid way ahead of schedule.”

    “Born out of this emergency, we discovered a new way to do conservation.”

    A new era for conservation

    The high plateaus overlooking the Maasai Mara are home to the very last giant pangolins in Kenya.

    These mammals, armored with distinctive interlocking scales, are highly endangered because of illegal wildlife trade. In Kenya, threats from poaching, deforestation and electric fences meant to deter elephants from crops have caused the species to nearly disappear. Today, scientists believe there could be as few as 30 giant pangolins left in Kenya.

    Conservancies could be crucial to bringing them back. Conservation International has identified opportunities to provide transformative funding for conservancies in this area — a sprawling grassland northwest of Maasai Mara that is the very last pangolin stronghold in the country. The fund will help communities better protect an existing 10,000-hectare (25,000-acre) conservancy and bring an additional 5,000 hectares under protection. It provides a safety net, ensuring a steady income for the communities as the work of expanding the conservancy begins. With a stable income, communities can start work to restore the savanna and remove electric fences that have killed pangolins. And as wildlife move back into the ecosystem, the grasslands will begin to recover.

    In addition to expanding conservancies around Maasai Mara, Conservation International has identified other critical ecosystems where community conservancies can help lift people out poverty, while providing new habitats for wildlife. Conservation International has ambitious plans to restore a critical and highly degraded savanna between Amboseli and Tsavo National Parks in southern Kenya, as well as a swath of savanna outside Kruger National Park in South Africa.

    © Emily Nyrop

    A lone acacia tree in a sea of grass.

    Elephants, fire, Maasai and cattle

    Many of the new and emerging community conservancies have been carefully chosen as key wildlife corridors that would be threatened by overgrazing livestock.

    When the first Maasai Mara conservancies were established in 2009, cattle grazing was prohibited within their boundaries. When poorly managed, cattle can wear grasses down to their roots, triggering topsoil erosion and the loss of nutrients, microbes and biodiversity vital for soil health. It was also believed that tourists would be put off by the sight of livestock mingling with wildlife.

    © Emily Nyrop

    Cattle are closely monitored in the Maasai Mara to prevent overgrazing.

    However, over the years, landowners objected, lamenting the loss of cultural ties to cattle and herding. “That was when we changed tactics,” said Raphael Kereto, the grazing manager for Mara North Conservancy.

    Beginning in 2018, Mara North and other conservancies in the region started adopting livestock grazing practices to restore the savanna. Landowners agreed to periodically move livestock between different pastures, allowing grazed lands to recover and regrow,  mimicking the traditional methods pastoralists have used on these lands for hundreds, if not thousands, of years.

    “Initially, there was a worry that maybe herbivores and other wildlife will run away from cattle,” said Kereto. “But we have seen the exact opposite — the wildlife all follow where cattle are grazing. This is because we have a lot of grass, and all the animals follow where there is a lot of grass. We even saw a cheetah with a cub that spent all her time rotating with wildlife.”

    “It's amazing — when we move cattle, the cheetah comes with it.”

    The loans issued by the fund — now called the African Conservancies Facility — will enhance rotational grazing systems, which are practiced differently in each conservancy, by incorporating best practices and lessons from the organization’s Herding for Health program in southern Africa.

    © Will Turner

    An elephant herd stares down a pack of hyenas.

    For landowners like Dickson Kaelo, who was among the pioneers to propose the conservancy model in Kenya, the return of cattle to the ecosystem has restored a natural order.

    “I always wanted to understand how it was that there was so much more wildlife in the conservancies than in Maasai Mara National Reserve,” said Kaelo, who heads the Kenya Wildlife Conservancy Association, based in Nairobi.

    “I went to the communities and asked them this question. They told me savannas were created by elephants, fire and Maasai and cattle, and excluding any one of those is not good for the health of the system. So, I believe in the conservancies — I know that every single month, people go to the bank and they have some money, they haven't lost their culture because they still are cattle keepers, and the land is much healthier, with more grass, more wildlife, and the trees have not been cut.

    “For me, it’s something really beautiful.”


    Further reading:

    Will McCarry is the content director at Conservation International. Want to read more stories like this? Sign up for email updates. Also, please consider supporting our critical work.

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