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Share Increasing use of neonicotinoid insecticides is harming pollinators, like this honey bee in a pumpkin flower. Konrad Wothe/Minden Pictures Birds versus bees: Here are the winners and losers in the great pesticide trade-off Apr. 1, 2021 , 2:25 PM Farms are battlefields, pitting growers against rapacious pests and aggressive weeds in never-ending, costly campaigns that often involve chemical weapons. Those weapons, alas, also harm innocent bystanders such as bees, fish, and crustaceans. Now, a large study charts epic shifts that have occurred in recent decades as U.S. farmers have changed their arsenal of pesticides. Birds and mammals have fared much better, whereas pollinators and aquatic invertebrates are suffering. The toxic impact to land plants has also skyrocketed, likely because farmers are using increasing kinds of chemicals to fight weeds that have become resistant to common herbicides.

United statesUniversity parkUniversity of massachusettsEdward perryErik stokstadKonrad wothe mindenHelen poyntonRalf schulzJohn tookerUs environmental protection agencyKansas state universityPennsylvania state universityUniversity of koblenzEuropean unionUs geologicalProtection agency