The criminal behind the killing of thousands of plants at Pima County Native Plant Nursery last month now has a bounty on his or her head.

Pima County is offering a reward of $2,500 for information leading to the arrest of the person or people behind the act, which destroyed roughly $34,000 worth of plants intended to revegetate construction sites and other county properties.

With no herbicides stored on site, the plant killer had to bring a substantial amount of herbicide — probably several gallons — and a professional sprayer to distribute the poison in a single night.

“This was a reprehensible act that will set back our efforts to restore native plants,” Pima County Administrator Chuck Huckelberry said.

“These are plants that cannot be replaced by buying them at a nursery. They were grown from seeds or salvaged from development sites, so it is safe to say an entire year’s worth of work has been lost.”

Those with any information regarding this case is asked to call 88-CRIME.

Anyone who wants to send the county a check is being asked to make them out to the Pima County Parklands Foundation with a note that the donated dollars should be applied to the Native Plant Nursery.

Donations may be mailed or dropped off at the Pima County Natural Resources, Parks and Recreation Department, 3500 W. River Road, Tucson 85741.