Spotting strange orange gashes or patches on your tree's bark may be alarming. The bark may appear cracked, sunken, and you may also notice damaged tissue on stems and branches. These markings may ...

You're out walking through your garden after a heavy rainstorm. Suddenly, you spot it: a bright, gelatinous, neon-orange blob clinging to the bark of your beloved maple tree. It looks like an alien ...

American beeches (Fagus grandifolia) have been suffering recently from a disease widespread in both Connecticut landscapes and forests, Beech leaf disease (BLD), caused by a foliar nematode, ...

As Colorado experiences its signature whiplash weather, arborists are warning that stressed trees are more vulnerable to pests and diseases. Peel back the bark, and you may find a predator in your ...

Spruce bark is rich in phenolic compounds that protect trees from pathogenic fungi. A research team at the Max Planck Institute for Chemical Ecology in Jena has investigated how these plant defenses ...