Cooperative Extension, Sutter-Yuba Counties
University of California
Cooperative Extension, Sutter-Yuba Counties

Botryosphaeria and Phomopsis Blight and Cankers

Preventing Walnut scale and Botryosphaeria canker and blight 6-1-2015

 

Botryosphaeria dieback on a 'Chandler' limb - Photo by Janine Hasey

 

Branch close-up of 'Chandler' showing scale under lichens and black fruiting bodies of Botryosphaeria where bark was removed - Photo by Janine Hasey

 

Canker margin of Botryosphaeria dieback on 'Chandler' - Photo by Janine Hasey

 

Botryosphaeria Blight - Notice black fungal fruiting bodies Photo by Themis Michailides

 

  

Botryosphaeria Blight-Notice black & white fungal fruiting bodies   - Photo by Themis Michailides

 

  

Botryosphaeria Blight - Notice canker margin - Photo by Themis Michailides

 

Botryosphaeria & Phomopsis dieback in a 'Howard' hedgerow - Photo by Janine Hasey

 

Botryosphaeria & Phomopsis dieback in a 'Howard' hedgerow - Photo by Janine Hasey

 

Botryosphaeria & Phomopsis dieback in a 'Howard' hedgerow - Photo by Janine Hasey

 

Phomopsis dieback in a 'Tulare' hedgerow - Photo by Janine Hasey

 

Phomopsis on Walnuts - Photo by Themis Michailides

 

Phomopsis on Walnuts - Photo by Themis Michailides

 

 

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