ZonePlant

Disease on crop

bacterial

Almond Leaf Scorch on almond

Xylella fastidiosa

Bacterial disease vectored by sharpshooter leafhoppers, causing progressive leaf scorch and tree decline. Same pathogen species as Pierce's disease in grape.

Disease
Almond Leaf Scorch
Pathogen type
Bacterial
Crop
Almond
Scientific name
Xylella fastidiosa

Almond Leaf Scorch on almond

Detailed guidance for this section is being prepared. Check back soon.

Symptoms on almond

  • Marginal leaf browning with yellow halo separating dead from healthy tissue
  • Progressive defoliation of affected branches
  • Reduced kernel fill and tree vigor over consecutive years

IPM controls

  • No effective cure once infected; remove and replace affected trees
  • Manage sharpshooter populations along orchard edges
  • Avoid planting near infected riparian vegetation (the primary inoculum source)
  • Monitor and rogue out infected trees promptly

Other crops affected by almond leaf scorch

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