In June 2013, a pesticide application on ornamental trees in a shopping-center parking lot in Wilsonville, Oregon, led to the largest documented mass fatality of bumble bees in North America. A new analysis of the incident estimates more than 100,000 bees from nearly 600 colonies were killed, which researchers cite as a cautionary tale about the dangers of pesticides to native bee populations.
When pesticides show up in the pollen that honey bees collect, can the source plant be pinpointed? A new study is the first to successfully combine chemical analysis of pollen and the keen eye of a palynologist—an expert in identifying pollen microscopically—to track pesticide in bee-collected pollen to a source plant genus.
A new "IPM Criteria Guidance Document" provides integrated pest management professionals, extension entomologists, and growers a common set of criteria to compare pesticides and make a selection based on compatibility within a given IPM plan.
With the right combination of methods, landscape managers can strike an effective balance between pest management and protecting pollinators in turfgrass settings. A new, open-access guide in the Journal of […]
By Josh Lancette In a recent Reddit AMA, honey bee experts May Berenbaum, Ph.D., and Gene Robinson, Ph.D., listed four P’s that drive problems with honey bees: pathogens, pesticides, parasites, […]