Controversial insecticide use rises as farmers douse seeds | Science News

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Controversial insecticide use rises as farmers douse seeds

Preventative neonicotinoid treatment could harm bees, other pollinating insects

By
12:26pm, April 7, 2015
Insecticide graph

GROWTH CHART  The amount of crop seeds coated in controversial insecticides has sprouted since the early 2000s.

Since the early 2000s, U.S. farmers have dramatically increased their use of controversial insecticides suspected of playing a role in the decline of pollinating insects, such as honeybees. Called neonicotinoids, these insecticides are a class of neuroactive chemicals similar to nicotine.  

The boom in neonicotinoid use came about as many agricultural companies and farmers started smothering seeds with the insecticide before planting, a preemptive treatment not monitored by the U.S. Department of Agriculture, researchers report online April 2 in Environmental Science & Technology. In the new study, entomologists Margaret Douglas and John Tooker, both of Penn State University in University Park, combined agricultural data from the USDA, the U.S. Geological Survey, state records and a maize seed supplier. Using estimates of how much of the insecticide was sold and how much was used for nonseed

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