what is killing the honey bees?

Bug spray killin' the bees...
:confused:
Insecticides linked to honeybee die-offs
WASHINGTON, March 15,`12 (UPI) -- Die-offs of honeybees critical for pollinating food crops -- part of so-called colony collapse disorder -- is linked to an insecticide, a U.S. journal reports.
Researchers from the University of Padua in Italy writing in the journal Environmental Science & Technology say the springtime die-offs have been linked to technology used to plant corn coated with insecticides. In some parts of Europe where farmers use the technology to plant seeds coated with so-called neonicotinoid insecticides, widespread deaths of honeybees have been reported since the introduction of the technique in the late 1990s, they said.

Such insecticides are among the most widely used in the world, popular because they kill insects by paralyzing nerves but have lower toxicity for other animals. Scientists said they suspected the bee die-offs might be due to particles of the insecticide made airborne by the pneumatic drilling machines used for planting that forcefully suck seeds in and expel a burst of air containing high concentrations of particles of the insecticide coating.

They found that honeybees that flew through the emission cloud of the seeding machines used in mid-March to May corn planting were dying. Future work on the problem should focus on a way to prevent the seeds from fragmenting inside the pneumatic drilling machines, the researchers said.

Source
 
In 2007, some authorities attributed the problem to biotic factors such as Varroa mites and insect diseases (i.e., pathogens including Nosema apis and Israel acute paralysis virus).
Other proposed causes include environmental change-related stresses, malnutrition, pesticides (e.g.. neonicotinoids such as clothianidin and imidacloprid, and migratory beekeeping.
More speculative possibilities have included both cell phone radiation and genetically modified (GM) crops with pest control characteristics. Relatively little attention has been given to the artificial selective breeding of bees for industrial use, the displacement of and stressors on wild bees, and the effect of artificial genetic homogeneity on increased predisposition and uniform susceptibility to disease.
It has also been suggested that it may be due to a combination of many factors and that no single factor is the cause.
The most recent report (USDA - 2010) states that "based on an initial analysis of collected bee samples, reports have noted the high number of viruses and other pathogens, pesticides, and parasites present in CCD colonies, and lower levels in non-CCD colonies.
This work suggests that a combination of environmental stressors may set off a cascade of events and contribute to a colony where weakened worker bees are more susceptible to pests and pathogens."
Applying proteomics-based pathogen screening tools in 2010, researchers announced they had identified a co-infection of invertebrate iridescent virus type 6 (IIV-6) and the fungus Nosema ceranae in all CCD colonies sampled. However, subsequent studies have questioned the methodology used in these proteomic experiments.
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It appears there may be more causes than pesticides.
 
MeBelle60, I didn't want to go all science on everybody. lol

I was surprised last year to learn how many species of honey bees there are. Many with overlaping territories.
 
Carnac says...

Before this thread is done, someone will blame Republicans...

No one is blaming Republicans for causing the mass die off. Everyone is blaming the Republicans because they think it can't be man made. It must be part of "God's Plan", if it's even happening. This is why we must end the EPA.
 
MeBelle60, I didn't want to go all science on everybody. lol

I was surprised last year to learn how many species of honey bees there are. Many with overlaping territories.

That explains recent observations in the bees' odd behavior. Normally, they do a type of a "dance" inside the hive in order to communicate the location of nectar.
Now, scientists believe this dance has evolved into what they can only explain as the flashing of gang symbols.

Not totally unrelated: the following is an experiment conducted on the effects of various drugs on spiders...

[ame=http://www.youtube.com/watch?v=sHzdsFiBbFc]Spiders On Drugs - YouTube[/ame]
 

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