Proper timing of herbicide applications is imperative, as applying herbicide at the wrong time will only injure, but not kill ...

The best way to kill a tree you don't want depends on its ... In some cases, such as with invasive trees like the tree of heaven (Ailanthus altissima), simply damaging the tree or cutting it ...

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.

And take no prisoners. "Kill it! Squash it, smash it... just get rid of it," the department advises. Spotted lanternflies, like tree of heaven, are native to Asia. Western Pennsylvania Conservancy ...