Virtually all farms could significantly cut their pesticide use while still producing as much food, according to a major new study. The research also shows chemical treatments could be cut without affecting farm profits on over three-quarters of farms.

The scientists said that many farmers wanted to reduce pesticide use, partly due to concerns for their own health. But farmers do not have good access to information on alternatives, the researchers said, because much of their advice comes from representatives of companies that sell both seeds and pesticides.

The work presents a serious challenge to the billion-dollar pesticide industry, which has long argued its products are vital to food production, especially with the world population set to grow to nine billion people by 2050.