A new legal petition filed by a dozen public health and farm worker groups demands the Environmental Protection Agency (EPA) stop allowing farms to spray antibiotics on food crops in the US because they are probably causing superbugs to flourish and sickening farm workers.

The agricultural industry sprays about 8m pounds of antibiotic and antifungal pesticides on US food crops annually, many of which are banned in other countries.

The overuse of antibiotics, which are essential to treating human disease, as pesticides on fruits and vegetables threatens public health because it can lead to superbug bacteria that are antibiotic-resistant. Similarly, overuse of antifungal pesticides can lead to fungal infections that are less treatable with medical currently available drugs, the groups say.

“Each year Americans are at greater risk from dangerous bacteria and diseases because human medicines are sprayed on crops,” said Nathan Donley, environmental health science director at the Center for Biological Diversity. “This kind of recklessness and preventable suffering is what happens when the industry has a stranglehold on the EPA’s pesticide-approval process.”