Quantcast
Mar 302012
 

Pesticides are not the whole problem, but some think they could be a significant one

Some of the world’s most commonly used pesticides are killing bees by damaging their ability to navigate and reducing numbers of queens, research suggests.

Scientific groups in the UK and France studied the effects of neonicotinoids, which are used in more than 100 nations on farm crops and in gardens.

The UK team found the pesticides caused an 85% drop in queen production.

Writing in the journal Science, the groups note that bee declines in many countries are reducing crop yields.

In the UK alone, pollination is calculated to be worth about £430m to the national economy. And the US is among countries where a succession of local populations has crashed, a syndrome known as Colony Collapse Disorder.

Many causes have been suggested, including diseases, parasites, reduction in the range of flowers growing wild in the countryside, pesticides, or a combination of them all. The neonicotinoids investigated in the two Science papers are used on crops such as cereals, oilseed rape and sunflowers.

Often the chemical is applied to seeds before planting. As the plant grows, the pesticide is contained in every part of it, deterring insect pests such as aphids. But it also enters the pollen and nectar, which is how it can affect bees.

Dave Goulson from the UK’s University of Stirling and colleagues studied the impact of the neonicotinoid imidacloprid on bumblebees. They let bees from some colonies feed on pollen and sugar water containing levels of imidacloprid typically found in the wild, while others received a natural diet. Then they placed the colonies out in the field.

Read full article, which was written by Richard Black Environment correspondent, BBC News

Share on social media:

Facebooktwittergoogle_plusredditpinterestlinkedintumblrmail

Leave a Comment

avatar

Sort by:   newest | oldest | most voted
lynnibinny
Member
4 years 5 months ago

#RoundUp smells of Lamp-Oil (kerosene) + disinfectant Spray – was blowing across to our Woodland – #Pesticides have Ruined our World !

#Countries_reduction_in_Crop_Yields !!! Now…we should Worry !

We appear to be Witnessing Many #Extinctions on Twitter – We cannot lose anyMore! The biological balance is disturbed by #humans, So Sad!

All because of the #Pesticides #Sytemics #Round-up – We must cease using these please !

#SaveOurBees !!!

Carol Duke
Guest
4 years 5 months ago

Important posting Supertrooper! Pesticides and constant loss of swaths of wildflowers are pretty frightening and we are seeing more problems with our needed insect populations. Thank you for sharing Richard Black’s article.

wpDiscuz

Top-Viewed Posts Last 30 Days

  1. POLL: Should there be a worldwide ban on fur farms? [2513 Views]
  2. POLL: Should Japan’s “research whaling” program be closed down? [1958 Views]
  3. POLL: Should buzzards be killed to protect pheasants? [1418 Views]
  4. Gray Squirrels versus Red Squirrels – The Facts [1358 Views]
  5. POLL: Should Norway’s plan to cull its wolves be abandoned? [1243 Views]
  6. Rare desert lions of ‘five musketeers’ fame poisoned [1241 Views]
  7. The biologist terrifying the US Forest Service, timber and forest fire-fighting industries [1191 Views]
  8. POLL: Should Japan’s killing of dolphins and whales be stopped? [959 Views]
  9. POLL: Should the badger cull in the UK be extended? [903 Views]
  10. POLL: Should there be a worldwide ban on the ivory trade? [828 Views]

Top-Viewed Posts Last 12 Months

  1. White Killer Whale Adult Spotted for First Time in Wild [41861 Views]
  2. POLL: Should there be a worldwide ban on fur farms? [16576 Views]
  3. POLL: Should the annual Canadian seal hunt be banned? [14686 Views]
  4. POLL: Should fur farming be banned in the European Union? [13391 Views]
  5. POLL: Should Congress disband Wildlife “Killing” Services? [11073 Views]
  6. POLL: Should hare coursing be banned in Ireland? [10031 Views]
  7. POLL: Should driven grouse-shooting be banned? [8407 Views]
  8. POLL: Should grouse shooting on highland estates be banned? [8273 Views]
  9. Gray Squirrels versus Red Squirrels – The Facts [8080 Views]
  10. POLL: Should black bears be killed for Royal Guards’ fur caps? [8005 Views]