Washington (CNN) In the latest confrontation between the bee industry and the Trump administration, a group of concerned beekeepers have sued the Environmental Protection Agency over its July decision to expand the use of a pesticide that's known to harm bees and other pollinators.

The Pollinator Stewardship Council, the American Beekeeper Federation and beekeeper Jeff Anderson, who are represented by Earthjustice, have asked the US Ninth Circuit Court of Appeals to review the EPA's decision earlier this summer to rollback several restrictions around the pesticide sulfoxaflor, which were put in place under the Obama administration over concerns it might be contributing to plummeting bee populations.

Bees help pollinate a third of the crops we eat, including almonds, apples, avocados and grapes, and the steady decline in bee populations has caused alarm not just in the US but in Europe as well. Pollinators like bees are under threat because of parasites like varroa mites, widespread pesticide use, habitat loss and the climate crisis.

An EPA report from earlier this summer notes that some forms of the pesticide sulfoxaflor can be "very highly toxic" to bees. The EPA defended their decision at the time by citing studies that show the chemical disappears from the environment faster than other alternatives. But Earthjustice and other critics have attacked the EPA for relying on studies funded by industry groups.

"Honeybees and other pollinators are dying in droves because of insecticides like sulfoxaflor, yet the Trump administration removes restrictions just to please the chemical industry," said Earthjustice lawyer Greg Loarie in a statement. "This is illegal and an affront to our food system, economy, and environment."

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