Category Archives: Pesticides

Widespread continued use of bee-killing neonicotinoid pesticides

“Countries across Europe are exploiting a loophole to allow widespread continued use of bee-killing neonicotinoid pesticides, two years after the EU introduced a landmark ban on their use.

The EU agreed a ban on all outdoor uses of the neonicotinoid insecticides clothianidin, imidacloprid, and thiamethoxam on 27 April 2018, in order to protect bees.

However, an Unearthed investigation has found that in the two years since the ban was agreed, EU countries have issued at least 67 different “emergency authorisations” for outdoor use of these chemicals…”

https://unearthed.greenpeace.org/2020/07/08/bees-neonicotinoids-bayer-syngenta-eu-ban-loophole/

‘Bee-killing’ pesticide now will not be used on UK sugar beet fields

A Guardian newspaper article:-

“A pesticide which reduces bee populations and was to be used in England’s sugar beet fields this year will not be used after recent cold weather killed off virus-transmitting aphids…..”

https://www.theguardian.com/environment/2021/mar/03/bee-killing-pesticide-now-will-not-be-used-on-uk-sugar-beet-fields?fbclid=IwAR0tOvOeuetwoExDrEe8efFQqw-w9FwusIG73Kt-SW6vV7sHQ6cxnQM1jZM

EU to end the export of banned agrochemicals to Third World countries

As reported by Greenpeace the EU has pledged to bring to an end the deplorable practice of sending thousands of tonnes of pesticides and herbicides which are banned in Europe to poor third world countries with weaker regulations.

The UK is a major exporter of these banned pesticides but this new proposed legislation won’t apply to us as we are no longer members of the EU.

Many of these banned agrochemicals pose a threat to bees and other pollinators, not to mention people. For example the herbicide Paraquat is manufactured for Syngenta in its factory here in Huddersfield. We are not the only culprits, however, as 10 other EU countries, including Germany and France, are guilty of exporting similar prohibited chemicals.

The date set for action is 2023.

Will the UK follow suit?

https://unearthed.greenpeace.org/2020/10/15/eu-banned-pesticide-exports-public-eye/

Promote wildlife and have a profitable arable farm

Farmers Weekly 11th Sept 20 has an article about an RSPB owned commercial arable farm.

In 2019, the farm was benchmarked against other local farm businesses and though crops varied in profitability, this was typical compared to the other farms.

!n 2019, the farm went completely insecticide free and saw no reduction in yields compared with previous years, making small savings on the products.

One quote:-
“Though we had aphids in the beans last year, there were loads of ladybirds and larvae too, and within 10 days there were only ladybirds left and the beans didn’t suffer at all,”

The farm is planting wildflower corridors through fields to increase access to beneficial insects, compost spreading and sowing cover crops as part of the Centre of Ecology and Hydrology and Rothamsted Research’s Achieving Sustainable Agricultural Systems programme.

https://www.fwi.co.uk/news/environment/how-to-make-wildlife-conservation-with-profitable-arable-farming


 

First pollinator plant logo scheme backed by DNA-barcoding

“The National Botanic Garden of Wales launches first pollinator plant logo scheme in the UK to be backed by DNA-barcoding science.

It is being rolled out to growers & nurseries so shoppers are guaranteed eligible plants are loved by bees and other pollinating insects, don’t contain synthetic insecticides and are grown in peat-free compost.

It aims to prevent pollinator decline and benefit other wildlife such as hedgehogs, sparrows and frogs …”

Read more …

https://botanicgarden.wales/press/science-fact-fuels-campaign-to-stamp-out-pollinator-friendly-fiction/


 

Mass bee die-offs – Brazil’s pesticide boom

Bees are sentinels’: “mass bee die-offs signal the wider impact of Brazil’s pesticide boom”

“The footage is unpleasant to watch: thousands of bees writhe, disoriented, on the ground in front of their hive. The dead bodies of thousands more lie beneath them.

But the smell, said beekeeper Aldo Machado, is even worse.

“Dead bees smell like dead rats,” he said. “The smell is very strong, it really is. It’s like any other meat.”

Half a billion bees are estimated to have died from December 2018 to January 2019 in southern Brazil. Machado, vice-president of Rio Grande do Sul’s beekeeping society, has been hearing reports of die-offs since 2013.

Machado sent samples of his bees for analysis, which showed that they were contaminated with an insecticide called fipronil, commonly used to control ants and termites on soy crops.”

See the full report…
https://unearthed.greenpeace.org/2020/02/27/bee-die-offs-soya-brazil-pesticide-boom-biodiverisity-agriculture/

Pesticides found to starve fish ‘astoundingly fast’

Report from The Guardian:-

“The Silent Spring prophecy that pesticides could “still the leaping of fish” has been confirmed, according to scientists investigating the collapse of fisheries in Japan. They say similar impacts are likely to have occurred around the world.

The long-term study showed an immediate plunge in insect and plankton numbers in a large lake after the introduction of neonicotinoid pesticides to rice paddies. This was rapidly followed by the collapse of smelt and eel populations, which had been stable for decades but rely on the tiny creatures for food. … ”

https://www.theguardian.com/environment/2019/oct/31/fishery-collapse-confirms-silent-spring-pesticide-prophecy

How do chemicals affect bees?

Pesticides reduce their egg-laying capabilities

Researchers found 26% of queen bumblebees treated with insecticides, stopped founding new colonies after winter hibernation.  This means over a quarter of bumblebee nests are being lost every year, increasing their chances of extinction.

https://www.npr.org/sections/thesalt/2017/08/14/542895824/popular-pesticides-keep-bumblebees-from-laying-eggs?t=1566656775002


Pesticides affect male bees’ sperm health

Researchers found drones (male honey bees) with neonicotinoid exposure did not have reduced sperm count, but did have reduced sperm viability.  Their conclusion finds that pesticides leads to queen honey bees failing to become properly fertilised and leads to premature colony failure.

https://royalsocietypublishing.org/doi/full/10.1098/rspb.2016.0506


Glyphosate reduces healthy gut microbiome in honey bees

Glyphosate is a very successful herbicide because it targets an enzyme usually only found in plants. However, gut bacteria in honey bees also contain this enzyme and once affected by glyphosate, increases their susceptibility to infection by disease and other pathogens.

Research has shown glyphosate leads to a weakened immune system in bees, and could be one of the causes of Colony Collapse Disorder.

https://www.pnas.org/content/115/41/10305


Fungicides reduce beneficial fungi in Bee Bread

Honey bees use pollen to make what is known as “bee bread”. This is where they collect pollen, then mix it with a bit of nectar and some of their digestive fluids before tightly packing it into their cells where it ferments. Fermentation breaks down proteins into important vitamins such as amino acids, lactic acid, and vitamin K. Honey bees eat this because it is a source of medicine, as pollen comes from a wide range of plant sources – just as we get our vitamins from a wide range of fruit and vegetables.

But fungicide research has shown that it reduces beneficial fungi needed for bee bread fermentation, leading to inferior quality bee bread which reduces their immune system and ironically leads to more fungal disease – such as Chalkbrood.

https://www.tandfonline.com/doi/abs/10.1080/15287394.2013.798846


Neonicotinoid exposure damages bees brains and affects their ability to forage

Researchers have found “rapid mitochondrial depolarization in neurons” in bumblebees exposed to neonicotinoids – meaning the plasma membrane of a muscle or nerve changes in permeability, affecting how cells transmit nerve impulses.

They found that bees suffered poor navigation, which led to poor foraging, which then led to a deficit in colony growth and contributed to bumblebee decline.

https://www.fasebj.org/doi/abs/10.1096/fj.14-267179?sid=c056c9e0-9441-4180-8cbf-0d912050cfe2


Get updates from https://cyrene.co.uk/how-do-chemicals-affect-bees/