But, when spring arrived, there was no new green growth on the tree trunk or its branches. But there was some green growth. A ...

Burls are round to irregular bumps or bulges that develop on tree trunks. Their exact cause is something of a ... Colors of lichens vary widely and include white, gray, red, green, yellow and black.

Armillaria root rot causes poor growth, yellow to brown foliage, and eventual death of the tree. Armillaria root rot can infect many deciduous and evergreen trees and shrubs. Trees infected with ...