Tree-of-heaven (ToH), also known as Chinese sumac, varnish tree, or stink tree, is a large, rapidly growing deciduous tree native to parts of China. Tree-of-heaven was introduced to North America as ...

This video is no longer available. Some bugs are OK, others are not, and the same goes for trees growing in the D.C. region. What should you be on the lookout for? During a walk-through at Patuxent ...

Purdue Landscape Report: Despite the sublime name, tree-of-heaven, Ailanthus altissima, is a particularly bad actor when it comes to trees encountered in the Midwest. This native of Asia was ...

The Western Pennsylvania Conservancy is using herbicide to kill tree of heaven trees to combat the spread of spotted lanternflies. The invasive insects threaten the regional grape industry. The tree ...

NORWALK — Like other towns and cities around the region, Norwalk city leaders and conservation officials are working to stop the spread of the invasive spotted lanternfly by cutting back on a favorite ...