Or almonds, avocados, blueberries, broccoli, cantaloupe, celery, cherries, citrus, cucumbers, and other foods that depend heavily on bee pollination. Climate change, parasites, and habitat loss are all implicated in the alarming worldwide bee die-off (more than a quarter of all U.S. hives have perished since 1990), but a slew of recent studies finger common conventional pesticides, such as neonicotinoids, as major culprits in colony collapse disorder.
A Harvard University study released in April showed that bees die even when pesticide exposure is very low—less than the exposure from a pesticide-sprayed field, for example, or from the amount found in the high-fructose corn syrup used to feed hives.