For the longest time I blamed the reduction of honey bees on a tiny mite that was killing it from within the bee's airways. That still might be a factor, but here is another chilling possibility. http://www.ens-newswire.com/ens/aug2008/2008-08-25-01.asp
It seems that a systemic insecticide has strong possibilities of killing 90 Billion bees in France and is used here in the good old U.S.A.
We used to think systemic insecticides only killed the bugs that ate the plant, but it now seems that the insecticide actually makes its way to the pollen and from there the bee.
Science is great, but why not work WITH nature to solve nature's problems. Synthetic pesticides and fertilizers may NEVER be worth the collateral damage they cause.