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LinkedInPosts Tagged: Canker
Bot Canker: Have You Heard of It?
Ever heard of Bot canker? "Bot" stands for Botryosphaeria which is a plant disease that results...
A Sign of the Times: Why This Black Walnut Tree Is Dying
If you've ever walked into the courtyard on the 100 block of E Street in downtown Davis, Calif.,...
Forest entomologists Steve Seybold (right) and Jackson Audley stand by a 150-year-old black walnut tree on the 100 block of E Street. It is dying of thousand cankers disease. (Photo by Kathy Keatley Garvey)
Walnut twig beetles tunnel into branches and trunks of walnut (Juglans) where they create galleries for mating and reproduction. In association with a canker producing fungus, Tthey cause a disease known as thousand cankers disease. This tree is in downtown Davis, Calif. (Photo by Kathy Keatley Garvey)
This massive, 150-year-old black walnut tree on the 100 block of E Street, Davis, is dying of thousand cankers disease. (Photo by Kathy Keatley Garvey)
Foamy Bark Canker: A New Disease on Coast Live Oak
[From the August 2015 issue of the UC IPM Green Bulletin] Declining coast live oak (Quercus...
It's Time to Prune Apricot & Cherry Trees
Although most fruit trees are pruned during the dormant season, in areas with wet winters, apricots...
Avoid Pruning Apricots and Cherries in Cool Season
Most people think about pruning fruit trees during the winter since the branch structure is most...
Figure 2. A cross-cut into the infected branch reveals a large fungal canker in the wood; the infection continues into the trunk.
