That’s the wrong kind of fertilizer, lady.

Police have nabbed the woman who peed in a bin of potatoes in a western Pennsylvania Walmart last Wednesday. A store employee spotted the tot mama in the act and immediately notified law enforcement.

The curly-haired brunette was captured on surveillance video entering the store — and the West Mifflin Borough Police Department posted screen grabs to its Twitter and website.

“Identification assistance — Walmart Incident,” cops captioned the images in a call for the community to help expose public enemy No. 1.

The shamed spud soaker, a k a Grace Brown, 20, turned herself in Tuesday.

“She was identified,” West Mifflin Police Chief Anthony Topolnak tells The Post, saying the woman came to the police station with her attorney and “admitted that was her in the video.”

The Allegheny County District Attorney’s office was contacted and recommends Brown be charged with “criminal mischief, open lewdness, disorderly conduct and public drunkenness,” Topolnak says.

“This type of obscene conduct is outrageous and we immediately disposed of the affected products and sanitized the area to ensure its cleanliness and safety for our customers,” Walmart said a statement.

The distasteful story comes weeks after a woman was filmed licking and returning ice cream to a Texas Walmart’s shelves was ID’d, and just days after Indiana teens were spotted spitting into soda bottles and putting them back in a convenience store fridge.