The term " canker" is used to describe a killed area or blister on the bark, a branch or the trunk of an infected tree.The Morton Arboretum describes it as a canker that is "usually oval to ...

We saw die-back in trees coming out of winter. In some cases, it is environmental stress from drought stress and winter ...

When a branch falls or a tree dies, one common reason is a group of diseases with an especially ominous name: canker diseases. “Canker” comes from the same root as “cancer.” Like cancers ...

Your tree may be suffering from a canker, which is a dead section of bark on branches or main trunks of trees. The peeling bark is a sign of this problem in your tree.

Feed the tree this fall. I believe strongly in feeding trees and shrubs (except newly planted ones) every year, even the old-timers. A maple tree under stress from canker could use the boost.

The disease can cause sunken, oozing cankers in the bark of the tree. The cankers can expand over time and girdle branches, killing them. This disease gets into trees through wounds in the bark.

This rot is caused by a fungus that attacks the tree's bark, with apple and pear trees being the most common hosts.If not addressed promptly, canker can kill a tree within a single season and ...

Figure 1: This crabapple tree was attacked first by fire blight and later by Botryosphaeria canker, killing the main trunk. Purdue Landscape Report: Dieback and canker diseases caused by ...

Cankers can also develop on the trunk." Apples are the primary hosts, although pears and Sorbus species are also targeted and, less frequently, ash, beech and some other trees.

CHESTNUT TREES FACE DESTRUCTION; Trees Worth Millions Dying in This State from a Canker for Which There Is No Remedy. EATS BENEATH THE BARK Sprays and Other Attempts to Check Spread of the ...

Q: I recently noticed a black, tar-like patch on my tree trunk, though it’s not tacky like actual tar. Are these insect eggs? Dried sap? Do I try to scrape it off? The tree has lichen but I don ...