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

Anthracnose on English Walnuts 'Serr'

Anthracnose on English Walnuts 'Serr'
May 1, 2012, Sutter County
All Photos by Janine Hasey 


Leaf Symptoms

IMG_3405

(young infections)


IMG_3408



IMG_3424

(advanced leaf lesion symptoms) 


IMG_3411

(magnified advanced leaf lesion)


IMG_3433

(lesions showing sporulation of the pathogen)


Leaf Drop


IMG_3414

IMG_3410


Symptoms on shoots and on compound leaf rachis

actively sporulating (beige areas)

IMG_3437

IMG_3417

 
IMG_3438

 
 
 

 

 
 
  
    

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