Farmers are battling “superweeds” and pests like the rootworm that have developed tolerance to Monsanto’s chemical pesticide Roundup in recent years. As an alternative, farmers began relying on stronger herbicides, including 2,4-D—a major ingredient in Agent Orange. But that too has recently begun to show signs of pest resistance, a new study finds.
Read More:Super Pests Becoming Resistant to Roundup and Agent Orange
