Hawaii County says illegal work was done to move dirt on comedian Roseanne Barr's 46-acre macadamia nut farm.

The Hawaii Tribune-Herald reported Tuesday the county sent a letter dated Feb. 24 to Barr's Big Buck Land Trust in Encino, Calif., instructing the trust to submit a completed grading permit application.

County public works engineer Kelly Gomes told the newspaper a grading permit is required to move more than 100 cubic yards of earth.

Neighbor Roree Oehlman says all-terrain vehicle trails have been bulldozed on Barr's property in Honokaa. Oehlman filed a complaint about the work "in the interest of public safety."

The "Roseanne" star recently announced plans to appear in a Lifetime reality show set on the farm.

Phone messages left for Barr's publicist and agent weren't immediately returned.