As of Labor Day weekend ... bees are still dying from symptoms that have been identified as Colony Collapse Disorder. Not many, yet. But this is when it starts. So let’s look at what’s going on.
So far the villain in Colony Collapse Disorder is mostly the lack of information.
Viruses
Israeli Acute Paralysis Virus was implicated early on, but so far it hasn’t moved past the 'found in some samples' role. Continuing greenhouse research, where individual honey bees are infected with the virus definitely shows that the pathogen kills bees. But so do a host of other viruses that were found in the initial samples. The jury is still out on IAPV, at least until newer studies are published.
Other researchers are studying viruses, some known, some not, but so far nothing concrete has turned up ... or at least nothing that anybody is talking about. That’s the trouble with science ... too often the information gets sat on until the results are published ... not reviewed and given the green light but actually put on paper (or turned into electrons to grace your computer screen) and released. Some publishing outlets are quicker, some slower but all have the same criteria. So if there’s something out there we’ll just have to wait.
Pesticides
Some of the early work -- simply collecting samples of bees, wax, larvae, and pollen -- are finally coming to the top of the pile and the results, some of which have been explored here, have been eye-opening, and mostly downright scary. Beekeeper-applied chemicals to control varroa certainly are hugely evident in the samples collected ... not unlike the termite chemicals, lawn chemicals, garden chemicals, pet chemicals, and all the rest that we walk in, swim in, eat, touch and absorb everyday in our homes, work and play. Pesticides, to no one’s surprise, are abundant in our lives and equally abundant in the lives of our honey bees.
One of the unknowns, or maybe-unknowns, are the effects that those well-publicized new pesticides are having. They have made international headlines and definitely can’t be overlooked. And advocacy group, Beyond Pesticides, commented recently on these, and said that two of the primary active ingredients of concern are clothianidin and imidacloprid, both in the neonicotinoid family of chemicals. They are systemic pesticides, meaning the chemical is incorporated into plant tissue and can therefore be present in pollen and nectar, which is of particular importance to bees. They also have long persistence in the soil and can be absorbed by multiple generations of crops, increasing the likelihood of exposure for bees. Meanwhile, the manufacturers claim the chemicals safe and have data to prove it. But others in France and Germany claim just the opposite and are doing everything in their power to rid the world of these new poisons, and in the U.S. the EPA stands in the middle ... and may soon be standing in court defending their role in approving these chemicals for use.
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