There are calls for urgent state government intervention to overturn the adopted native vegetation regulatory maps for the Monaro with local landholders saying they will no longer be able to self assess and self control African Lovegrass incursions on their land.

NSW Farmers Monaro branch will hold a community meeting on Wednesday 19 August to voice concerns over the new maps, and strengthen calls for immediate government action.

NSW Farmers Monaro branch chair, Ritchie Taylor, said landholders across the Monaro and state have raised issues with the maps for a number of years.

"At every instance since 2017 it has been accepted the satellite mapping of native grasslands on the Monaro is seriously flawed yet the Minister has decided to make the maps law. These maps will be used to prosecute landholders despite being hopelessly inaccurate," Mr Taylor said.

"We estimate about 200 000 hectares of the Monaro is incorrectly mapped. At the present rate of Local Land Services assessments, it will take over 100 years for this area to be inspected and the land deregulated.

"The finalisation of the maps by Minister Sharpe will force responsible landholders to break the law if they want to stop the spread of Lovegrass on their land and to their neighbours."

Local landholders have been active in developing a whole farm plan approach and are disappointed Minister Sharpe has refused to acknowledge their work.

"There is a genuine acceptance from landholders of the need to preserve biodiversity on farm," NSW Farmers member, Craig Mitchell, said.

The community meeting will be held at the Cooma Ex-Services Club between 3pm and 5pm.