"...I'm on an organic beekeeping email list of about 1,000 people, mostly Americans, and no one in the organic beekeeping world, including commercial beekeepers, is reporting colony collapse on this list. The problem with commercial operations is pesticides used in hives to fumigate for varroa mites and antibiotics are fed to the bees to prevent disease. Hives are hauled long distances by truck, often several times during the growing season, to provide pollination services to industrial agriculture crops, which further stresses the colonies and exposes them to agricultural pesticides and GMOs..."

article
http://www.organicconsumers.org/articles/article_5194.cfm