Sometimes it seems that controlling non-native invasive species is all disappointing with new invasive plants or animals arriving all the time. Here is a glimmer of hope when it come to Tree-of-Heaven (Ailanthus). Ailanthus is invading the Brown County Hills. It is not terribly widespread, but on the increase. The link below has some positive information on a possible native bio-control in the form of a verticillium fungus.  If you notice any clumps of tree-of-heaven showing wilting of the leaves,  yellowing of the inner bark or pronounced die off, please contact the Brown County Native Woodlands Project through our website at www.bcnwp.org.

Dan Shaver
Brown County Native Woodlands Project

Download a copy of the Ailanthus Verticillium Wilt Photoguide.