Correction to: Persistence of Tuber melanosporum in truffle orchards in North Carolina, USA.

The original version of this article contained an error. The sentence on page 6 lines 5-7.

Persistence of Tuber melanosporum in truffle orchards in North Carolina, USA.

A survey was conducted to determine the persistence of mycorrhization by Tuber melanosporum in truffle orchards established with European and American species of oak and common hazel trees in North Carolina. The trees had reportedly been inoculated and colonized by T. melanosporum prior to planting.