“Cankers may involve a change of color of the stem, a sunken area, cracked or peeling bark or oozing sap,” Yiesla said. The affected branch may die back from the tip down to the canker and beyond.

Numerous cankers (localized, injured areas) may occur on stems and branches and are of greater concern than the symptoms that show up on the foliage. Oaks, sycamores, birches, dogwoods and elms ...

Cankers will often appear as a swelling surrounding a sunken lesion on the bark of trunks and branches. The canker-causing pathogens like fungi and bacteria commonly invade wounded or injured bark ...

To prevent and manage rose cankers, you must clean your pruning shears with a 10% bleach solution or another disinfectant between each clip because the pathogen is easily spread on “dirty” tools.

 This webinar on Thousand Cankers Disease is hosted by the US Forest Service. Thousand cankers disease (TCD) is a complex disease native to the western United States and primarily affects black ...

Thousand Cankers Disease was identified in Bucks County a couple of years ago. Last week, after a sighting in Chester County, the Pennsylvania Department of Agriculture issued a quarantine for the ...

Students from different universities attending a summer program at UT's National Institute for Mathematical and Biological Synthesis are investigating the spread of thousand cankers disease, which ...

Thousand cankers disease (TCD) of walnut has been detected in Maryland and Pennsylvania, so a detection is possible in Delaware this season. The disease caused by a fungus and carried by the very ...