Fire Earth

Earth is fighting to stay alive. Mass dieoffs, triggered by anthropogenic assault and fallout of planetary defense systems offsetting the impact, could begin anytime!

Posts Tagged ‘insecticide’

Systemic Pesticides Harming Honeybees, Fish, Birds…

Posted by feww on June 25, 2014

Deadly impact of systemic pesticides on biodiversity and ecosystems
Scenarios 990, 444, 049, 013, 05
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 Systemic pesticides last longer!

Systemic pesticides occupy all the plant tissues (leaves, flowers, roots and stems, as well as pollen and nectar), according to a report.

“The most common are Neonicotinoids and Fipronil (neonics), which are a class of neuro-active, nicotine-based systemic insecticide.  These were developed in 1991 and brought into commercial use in the mid-1990s.”

Neurotoxic pesticides thought responsible  for the decline of honeybees are also harming other species including butterflies, worms, fish, and birds.  They are also contaminating habitats globally affecting food production and wildlife, according to a new study by a group of 29 researchers.

“Undertaking a full analysis of all the available literature (800 peer reviewed reports) the Task Force on Systemic Pesticides – a group of global, independent scientists has found that there is clear evidence of harm sufficient to trigger regulatory action,” said a press release accompanying the report.

Systemic Pesticides

Unlike other pesticides which remain on the surface of treated foliage, systemic pesticides are taken up by the plant and transported to all the tissues (leaves, flowers, roots and stems, as well as pollen and nectar).

The most common are Neonicotinoids and Fipronil (neonics), which are a class of neuro-active, nicotine-based systemic insecticide. These were developed in 1991 and brought into commercial use in the mid-1990s.

Products containing neonics can be applied at the root (as seed coating or soil drench) or sprayed onto crop foliage. The insecticide toxin remains active in the soil or plant for many months (or years), protecting the crop season-long.

Neonics act on the information processing abilities of invertebrates, affecting specific neural pathways that are different from vertebrates. This makes them popular as broad-spectrum insecticides, as they are considered less directly toxic to vertebrate species including humans.

These systemic insecticides have become the most widely used group of insecticides globally, with a market share now estimated at around 40% of the world market. Common compounds include acetamiprid, clothianidin, dinotefuran imidacloprid, nitenpyram, nithiazine, thiacloprid, thiamethoxam and fipronil, with global sales of over US $2.63 billion in 2011.

The market for seed treatments is expanding even more rapidly, growing from €155 million in the 1990s to €957 million in 2008, at which point neonics made up 80% of all seed treatment sales worldwide.

Neonicotinoids are still toxic even at very low doses. They have a high persistence in soil and water, remaining in situ for months on average, and this results in sustained and chronic exposure of non-target organisms, such as invertebrates. Because they are relatively water-soluble, they run off into aquatic habitats easily. Growing concern about their connection to bee colony collapse disorder has led to restrictions on their use in EU Countries. Concern about their impact on other non-target species including birds, has been growing for the last five years.

NOTES: The full WIA will be published in the Springer Journal within the next few weeks. Date to be confirmed by the Journal.

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Birds, Bees, Neonicotinoids and Deadly Disease

Posted by feww on April 10, 2013

China culls more than 40 tons of poultry daily

China has reported 33 cases of H7N9, including nine fatalities, in Shanghai municipality and the provinces of Jiangsu, Anhui and Zhejiang, according to the country’s National Health and Family Planning Commission.

China shut down poultry markets in Shanghai on April 5 and began culling tens of thousands of birds as a precaution to stop the spread of a new, deadly strain of avian flu.

“A top Chinese biology lab has ascribed the H7N9 avian influenza to genetic reassortment of wild birds from east Asia and chickens from east China,” said a report.

  • “A virus carried by wild birds from the Republic of Korea and other east Asian regions mingled with the avian influenza virus carried by ducks and chickens in the Yangtze River Delta during migration,” researchers said.

Colony Collapse Disorder (CCD)

“Colony Collapse Disorder (CCD) is a serious problem threatening the health of honey bees and the economic stability of commercial beekeeping and pollination operations in the United States. ” USDA said.

bee decline
Image credit: Stephen Ausmus/USDA/ARS

  • Bee pollination adds more than $15 billion in increased crop value in the U.S. each year.
  • The number of managed honey bee colonies has dropped from more than 5 million in the 1940s to less than 2.5 million today.
  • The almond industry in California requires the service of 1.4 million colonies of honey bees.
  • Losses from the winter of 2006-2011 averaged about 33 percent each year, with a third of all losses attributed to CCD by beekeepers.
  • Total losses of managed honey bee colonies were 21.9 percent nationwide for the 2011/2012 winter, according to the annual survey conducted by the USDA.
  • Neonicotinoids are a class of neuro-active insecticides chemically related to nicotine.
  • The European Food Safety Authority recently stated that neonicotinoids pose an unacceptably high risk to bees.
  • The American Bird Conservancy recently published a review of 200 studies on neonicotinoids and called for a ban on neonicotinoid use as seed treatments due to toxicity to birds, aquatic invertebrates, and other wildlife.
  • A coalition of beekeepers, conservation, food campaigners and sustainable agriculture advocates sued EPA last month on grounds that the agency has failed to protect the bees.
  • “The lawsuit accuses the Environmental Protection Agency (EPA) of failing to protect the insects – which pollinate three-quarters of all food crops – from nerve agents that it says should be suspended from use. Neonicotinoids, the world’s most widely used insecticides, are also facing the prospect of suspension in the European Union, after the health commissioner pledged to press on with the proposed ban despite opposition from the UK and Germany.”

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DISASTER CALENDARApril 10, 2013  
SYMBOLIC COUNTDOWN:
1,067 Days Left 

Mass die-offs resulting from human impact and the planetary response to the anthropogenic assault could occur by early 2016.

  • SYMBOLIC COUNTDOWN: 1,067 Days Left to ‘Worst Day’ in the brief Human  History
  • The countdown began on May 15, 2011 …

GLOBAL WARNINGS

Global Disasters: Links, Forecasts and Background

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