Latest suspect in colony disorder: Australian honeybees

June 22, 2010 By Les Blumenthal

Disease-carrying honeybees imported from Australia may be responsible for a mysterious disorder that's decimated bee hives around the country, and federal regulators say they'd consider import restrictions if necessary.

By some estimates, beekeepers in the past several years have lost from a third to half of their hives to what's called . Each hive, or colony, can contain as many as 100,000 bees. The bees are disappearing from the hives never to be seen again.

Honeybees pollinate about 100 crops, mostly fruits, vegetables and nuts. By some estimates, more than a third of the food that humans consume is pollinated by honeybees.

"Honeybees are important if you want a healthy and nutritious diet," said Robyn Rose, the Agriculture Department's national program manager for honeybee health. "We could live without them, but our diet would be pretty bland."

Scientists are unsure what's causing the problem, though it could involve a combination of factors. The possible culprits include mites, viruses, other diseases, pesticides, , stress and even . The latest suspect, however, is the imported honeybee from Australia.

"A link between the disorder, first reported in the United States in 2006, and honeybee imports from Australia has been suggested," according to a recent notice in the Federal Register by the Agriculture Department's Animal and Plant Health Inspection Service.

The department was seeking comment on a draft report that concluded "zoosanitary" measures or restrictions may be need to reduce the risk that viruses carried by Australian honeybees could reach the U.S. Such measures might include inspections, quarantines and . Agriculture Department officials don't rule out a ban on imports of Australian bees.

"It's a possibility, but not at this point," said Colin Stewart, a senior entomologist at the Agriculture Department.

Honeybees aren't native to North America; they were first brought to the continent by European colonists in the early 1600s.

Officials at the Australian Embassy in Washington insist that their bees aren't a threat to U.S. beekeepers, though they admit that Australia is facing an invasion of exotic Asian honeybees. Some scientists think the Asian bees might carry different viruses and mites than those carried by the European honeybees in the U.S.

"It is now widely accepted that this 'suggested' link has been discredited and that there is no single agent responsible for the cause of declining honeybees," the Australian Embassy said in an e-mail.

With nearly 15,000 hives, Eric Olson of Yakima, Wash., owns one of the nation's larger beekeeping operations.

Hitching a ride on a flatbed truck, his hives travel the western U.S., from the almond orchards of California's Central Valley to clover fields in the Dakotas.

For three years in a row, Olson has been losing hives to colony collapse disorder.

This past year, he lost 55 percent of his hives.

He's convinced that Australian honeybees are behind the colony collapse outbreak, and he thinks federal regulators have been dragging their feet in banning the foreign bees.

"This is more critical to our industry than mad cow was for livestock, and they stopped that," he said. "I'm very unhappy with the government response."

A loss of 30 percent or more of the honeybee hives every year in the U.S. isn't sustainable, said Rose, of the Agriculture Department.

Earlier this month, the department launched a voluntary survey of 350 apiaries in 13 states. Rose said they'll be looking for pests and diseases that haven't been found in the U.S. before.

"We want to prevent the import of bees from countries that have those pests," she said.

Currently, only bees from Australia, New Zealand and Canada can be imported.

Colony collapse disorder hasn't been seen in Australia, and Australian officials say their bees carry the same pathogens found in bees in the U.S.

As for the Asian bees, the embassy said they've been confined to the northern part of the country, and nests and swarms that are eradicated are tested for various mites and parasites. Nothing unusual has been found. Under new U.S. rules, Australia must certify that the nests of Asian were at least 100 miles from where the bees packaged for export are raised.

"We are keeping a close eye on it," said the Agriculture Department's Stewart. "They haven't found anything of significance in any of the swarms they have killed."

Many scientists are reluctant to blame colony collapse disorder on a single factor.

"It's a dangerous path to say it's just one thing," said Tim Lawrence, the director of the Washington State University Extension in Island County, Wash., who used to raise bees. "There will not be a single silver bullet that will solve this."

Lawrence said he didn't think the Australian bees were responsible for colony collapse disorder, but he added that diseases or mites could be on the foreign bees when they enter the U.S.

Beekeeper groups, including those from Washington state and California, have filed a petition with the Agriculture Department requesting that all import permits for Australian and other foreign bees be revoked until it's shown the bees are free of pathogens that could aggravate colony collapse disorder.

"We are not ruling anything out," said David Holzworth, a Washington attorney representing the beekeepers. At a minimum, the groups think existing import rules need to be tightened, he said.

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1 / 5 (4) Jun 23, 2010
Strange that on something as important as this, here are no comments made be the evolutionists. What evolutionary mechanism is driving this disappearance?
4 / 5 (4) Jun 23, 2010
Strange that on something as important as this, here are no comments made be the evolutionists. What evolutionary mechanism is driving this disappearance?

What are you talking about?
5 / 5 (1) Jun 23, 2010
What's the creationsist mechanism?

Why did you even bring this up?
not rated yet Jun 23, 2010
Strange that on something as important as this, here are no comments made be the evolutionists. What evolutionary mechanism is driving this disappearance?

The evolutionary mechanism is called HUMANS!!! Honey bee (like many other creatures) have been around for millions of years. It's only now that humanity has messed with everything on this planet that these creatures are having problems surviving. We spread ourselves like a virus, we pollute the waters, the air, the land. We fill the ocean with garbage and oil. We cut down forests. We let loose nuclear bombs. We spread chemical pesticides EVERYWHERE.

And to top it off, we sit hear and wonder why something like honeybees are dying. If we keep behaving in this way, we will prove Darwin's theory of "survival of the fittest" because humanity will make this earth unfit to live on.

My 2 cents.
not rated yet Jun 23, 2010
Whether it is the Australian honey bees or not is difficult to tell, especially as this problem is not seen in Australia.
Whilst concern was expressed over Asian honey bees they did not say that they had this problem either.
It must be possible that bacteria that one source of bees are accustomed to could create problems with bees that were not accustomed to them.
Much like human travelers suffering stomach upsets when they travel due to the different flora in the local water which is fine for the locals but not the visitors.
The only problem here is that generally bees build their own colonies, they don't accept inter marriages or migrant or refugee bees into their communities.
That should tend to make them (imported bees)as a source of infection less likely.
1 / 5 (1) Jun 23, 2010
Bumble-bees and bats are disappearing too - it's improbable, the spreading of Australian honeybees would affect them all.

I'd rather say, GMO are guilty by CCD. Australia is known by ruling out the genetically modified crops before years.

I disagree that GMO is to blame, we've done extensive studies of the impact of GMO against native wildlife and found no correlation with the loss of pollination agents in situ.
5 / 5 (1) Jun 24, 2010
Yes GMO again, you brainwashed critisists start to read and stop playing the "green" parrots you are!
Au-Pu has it right, what happened when white people arrived in South America....and lots of animal populations suffers from such problems-great losses in short periods due to patogens, nature doesnt know the word mercy.
And this GMO tehnology that you all hate so much can fix the problem if the things gets really bad!
not rated yet Jun 26, 2010
Yeast - this is my theory. The first link describes how yeast and beetles have cooperated to invade honeybee colonies, and the second describes the symptoms of systemic yeast infection.
Yeast is close to my heart, because i have a systemic yeast infection, and it is happy when i eat sugar, especially in concentrated forms like honey. before i had it i was extremely healthy, but since i have developed a periodically weakened immune system, diabetes, brain complications, and various other issues. it is a tricky predator, in that whenever it is threatened it undergoes rapid mutation, enabling it to invade other tissues or derive nourishment from other sources. garlic keeps me healthy but i don't know what would help the bees.

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