Experimental design to test the effect of Fipronil on honey bee reproduction. Drones were exposed to the pathogen N. ceranae, the insecticide fipronil or both under semi-field conditions. Newborn drones were individually fed a sugar syrup solution contaminated or not with 50,000 spores of N. ceranae (A) and cloistered in queenless colonies placed under a tunnel covered with an insect-proof net (B). For 20 days, colonies were supplied daily by foragers that gathered in a feeder with contaminated sugar syrup solution with fipronil at 0.1 µg.L−1 (C). At the end of the experiment, drones were caught (D) to collect semen in a glass capillary (E). Following the exposures, drone life traits were investigated, and analyses of physiological markers in the head, abdomen, midgut and semen were performed (F). Graphic: Kairo, et al., 2017 / Nature Scientific Reports

26 November 2018 (BBC News) – At least one million bees are suspected to have died of poisoning in a wine-producing area of South Africa.

Brendan Ashley-Cooper told the BBC that an insecticide used by wine farmers, Fipronil, was thought to have killed the insects on his farm.

Other honey bee farmers in the area around Cape Town have also been affected, but it is still unclear how many of the insects have died, he said.

Fipronil has been blamed for the deaths of millions of honey bees in Europe.

Campaigners say Fipronil is highly toxic to insects, and its use was restricted in Europe in 2013.

About 100 of his bee hives, or 35% to 40% of those he owned in the affected areas, had been hit by the disaster, said Mr Ashley-Cooper, the vice-chairman of the Western Cape Bee Industry Association.

He estimated this meant between 1-1.5 million bees had been killed.

It is unclear how many bees there are in South Africa, but the deaths would not make much difference to their overall population, he said.

Fipronil was also at the centre of an egg scandal in Europe this year.

Millions of eggs were pulled from supermarket shelves in more than a dozen European countries, including the UK, after it was discovered that some had been contaminated with the insecticide.

Fipronil is commonly used to get rid of fleas, lice and ticks but is banned by the European Union for use on animals destined for human consumption, such as chickens. [more]

South African bees: 'One million die in Cape Town'



Blog Template by Adam Every . Sponsored by Business Web Hosting Reviews