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

The Royal Horticultural Society explains: "Apple canker is a disease caused by a fungus, Neonectria ditissima, which attacks the bark of apples and some other trees, causing a sunken area of dead ...

European canker: A fungal disease affecting apple trees, characterised by cankers on trunks and branches that can lead to dieback and eventual tree loss. Neonectria ditissima: ...

When the branches of your trees and shrubs are bare in winter, you have an opportunity to spot cankers that might be hidden by leaves in summer. A canker is an area of disease in the wood of a plant.

However, wounds are not required for infection. In susceptible trees and shrubs, the fungus may attack the smallest twigs and later spread to larger branches where they cause cankers. Symptoms: ...

Cytospora canker generally appears on the lower branches first and then progresses up the tree. Individual upper branches may show these symptoms as well (as you are seeing in your blue spruce).

Dead branches can indicate a canker. Detecting the fungi is not an emergency but "people should keep an eye on their plants when they see abnormalities," Eskalen said.

Despite threats of lawsuits by several South Florida cities and counties, state agriculture officials plan to send crews out in June to resume cutting trees affected by citrus canker. Some 200,000 ...

Red foliage growing from ponderosa pines, as well as red “sores or cankers” on pinecones, consistent with the fungus diplodia, have been reported near Bigfork, Woods Bay and Echo Lake.

Dead branches can indicate a canker. Detecting the fungi is not an emergency but “people should keep an eye on their plants when they see abnormalities,” Eskalen said. Cankers are localized areas on ...