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A sign is posted in front of a Whole Foods store February 17, 2010 in San Rafael, California.
California's pesticide regulator is suing Whole Foods Market, Inc. over four pesticide products the grocery retailer sells at stores in the state.
The California Department of Pesticide Regulation says the state has not determined the products are safe.
The suit was filed Monday in Sacramento Superior Court, and seeks a court order requiring the grocer to explain why it is selling pesticide products that do not comply with state safety laws.
The products are 365 Natural Pines Pellet Cat Litter; Purely Botanical Cat Flea Spray; Purely Botanical Dog Flea Spray and Enviroman Bugs R Done Bug spray.
Whole Foods said it cooperated fully with the department and looked forward to addressing the matter before a judge.
If it is found to have sold unregistered pesticides, the state could issue fines.