How pruning an oak tree at the right time can head off a deadly new disease
A deadly new oak-tree disease can be prevented by pruning them in the dormant season (if needed) instead of spring or summer.
Disease could kill most of the ‘ohi‘a forests on Hawaii’s Big Island within 20 years
Ten years ago, a mysterious new disease was found sweeping through Hawaii’s native ‘ohi‘a forests, killing off the foundation ...