Filtering by tag: tree health ✕

Pest Alert - Rosellinia Blight on Hemlock

Rosellina Blight Once thought to be only in the western U. S., the Rosellina Blight fungus is now present in North Carolina. It attacks conifers including hemlocks of all sizes and ages. It can kill…

Plant Health Alert - Avoid Topping Trees

'Topping' refers to the wholesale removal of most of the branches of a tree. Often this is done to make a tree less prone to blowing over in a wind storm or to prevent large limbs from falling on…

Plant Health Alert - Graft Union Failure

The question is, "Why is the top of this tree dead???"When I am diagnosing a plant problem I try to go through a process of elimination. I try to eliminate all of the 'usual suspects', the very…

Plant Health Alert - Caring for Aging Trees

In our work here as plant health specialists, we get images like the one below sent to us daily. People ask why their plants do not look as healthy as they should? In this case, these are…

Plant Health Alert - Tree Health Post Helene

Trees Failing Post-HeleneWe have been seeing lots of plants dying Spring 2025. We have also had reports of trees falling over that survived the storm. Experts suspect many of the tree issues we are…

'Green Giant' arborvitae hedge in winter

Arborvitae and Other Conifers in the Landscape

Arborvitae The common name is latin for ‘tree of life’ because parts of the plant were once used for medicines. The genus Thuja includes two native species. Arborvitae are typically small to medium…

Plant Health Alert - Storm Damaged Trees

Storm Damaged TreesAfter Hurricane Helene, there are many damaged and toppled large trees. There is little we as normal people can do to clean up these large trees. Mostly it will be up to the brave…

Pest Alert - Girdling Roots: Hidden and Silent Killer of Trees

One of the most common reasons trees die are the effects of girdling roots. Girdling roots are roots that wrap around the trunk of the tree at the root collar where the roots meet trunk. As the trunk…

Plant Health Alert - Excavate Root Collars to Save Trees

Most tree health issues can be traced to a LSREP...Lower Stem Root or Environmental Problem. LSREPs can be physical root damage, trunk damage, root diseases, etc. Always these tree issues are a…

Tree branches and leaves covered in dense silken webbing containing clusters of brown caterpillars

Pest Alert - Fall Webworm

What the heck is this web stuff in my tree? A giant spider? No, it’s the Fall webworm. Fall WebwormThe fall webworm, Hyphantria cunea, is a common pest of trees in Henderson County. The caterpillar…