States reporting honey bee Colony Collapse Disorder (in red) |
By Claire Thomson, Grist, January 13, 2012
Anyone who's been stung by a bee knows they can inflict
an outsized pain for such tiny insects. It makes a strange kind of sense, then,
that their demise would create an outsized problem for the food system by
placing the more than 70 crops
they pollinate -- from almonds to apples to blueberries -- in peril.
Although news about Colony Collapse Disorder (CCD) has
died down, commercial beekeepers have seen average population losses of about
30 percent each year since 2006, said Paul Towers, of the Pesticide Action
Network. Towers was one of the organizers of a conference that brought together beekeepers and environmental groups this week to tackle the challenges
facing the beekeeping industry and the agricultural economy by proxy.
"We are inching our way toward a critical tipping
point," said Steve Ellis, secretary of the National Honey Bee Advisory
Board (NHBAB) and a beekeeper for 35 years. Last year he had so many abnormal
bee die-offs that he'll qualify for disaster relief from the U.S. Department of
Agriculture (USDA).
In addition to continued reports of CCD -- a still
somewhat mysterious phenomenon in which entire bee colonies literally
disappear, alien-abduction style, leaving not even their dead bodies behind --
bee populations are suffering poor health in general, and experiencing shorter
life spans and diminished vitality. And while parasites, pathogens, and habitat
loss can deal blows to bee health, research increasingly points to pesticides
as the primary culprit.
"In the industry we believe pesticides play an
important role in what's going on," said Dave Hackenberg, co-chair of the
NHBAB and a beekeeper in Pennsylvania.
Of particular concern is a group of pesticides,
chemically similar to nicotine, called neonicotinoids (neonics for short), and one in particular called clothianidin. Instead of being sprayed, neonics
are used to treat seeds, so that they're absorbed by the plant's vascular
system, and then end up attacking the central nervous systems of bees that come
to collect pollen. Virtually all of today's genetically engineered Bt corn is treated with neonics. The chemical industry alleges that bees don't like to collect
corn pollen, but new research shows that not only do bees indeed forage in
corn, but they also have multiple other routes of exposure to neonics.
The Purdue University study, published in the journal PLoS ONE, found high levels of clothianidin
in planter exhaust spewed during the spring sowing of treated maize seed. It
also found neonics in the soil of unplanted fields nearby those planted with Bt
corn, on dandelions growing near those fields, in dead bees found near hive
entrances, and in pollen stored in the hives.
Evidence already pointed to the presence of
neonic-contaminated pollen as a factor in CCD. As Hackenberg explained, "The insects start taking [the
pesticide] home, and it contaminates everywhere the insect came from."
These new revelations about the pervasiveness of neonics in bees' habitats only
strengthen the case against using the insecticides.
The irony, of course, is that farmers use these
chemicals to protect their crops from destructive insects, but in so doing,
they harm other insects essential to their crops' production -- a catch-22 that
Hackenberg said speaks to the fact that "we have become a nation driven by
the chemical industry." In addition to beekeeping, he owns two farms, and
even when crop analysts recommend spraying pesticides on his crops to kill an
aphid population, for example, he knows that "if I spray, I'm going to
kill all the beneficial insects." But most farmers, lacking Hackenberg's
awareness of bee populations, follow the advice of the crop adviser -- who,
these days, is likely to be paid by the chemical industry, rather than by a
state university or another independent entity.
Beekeepers have already teamed up with groups
representing the almond and blueberry industries -- both of which depend on
honey bee pollination -- to tackle the need for education among farmers.
"A lot of [farm groups] are recognizing that we need more resources
devoted to pollinator protection," Ellis said. "We need that same
level of commitment on a national basis, from our USDA and EPA and the
agricultural chemical industry."
Unfortunately, it was the EPA itself that green-lit
clothianidin and other neonics for commercial use, despite its own scientists' clear warnings about the chemicals' effects on bees
and other pollinators. That doesn't bode well for the chances of getting
neonics off the market now, even in light of the Purdue study's findings.
"The agency has, in most cases, sided with
pesticide manufacturers and worked to fast-track the approval of new products,
and failed in cases when there's clear evidence of harm to take those products
off the market," Towers said.
Since this is an election year -- a time when no one
wants to make Big Ag (and its money) mad -- beekeepers may have to suffer
another season of losses before there's any hope of action on the EPA's part.
But when one out of every three bites of food on Americans' plates results
directly from honey bee pollination, there's no question that the fate of these
insects will determine our own as eaters.
Ellis,
for his part, thinks that figuring out a way to solve the bee crisis could be a
catalyst for larger reform within our agriculture system. "If we can
protect that pollinator base, it's going to have ripple effects ... for
wildlife, for human health," he said. "It will bring up subjects that
need to be looked at, of groundwater and surface water -- all the connected
subjects associated [with] chemical use and agriculture."
1 comment:
Sad! Man's greed and willful ignorance is going to destroy us all. We are beekeepers and depend on pollination of our crops with ours or other bees. Looks like we will have to start hand pollination, as the Chinese have started doing.
Thanks for the article.
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