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Extension > Garden > Diagnose a problem > What's wrong with my plant? > Fruit > Raspberry > Discolored leaves

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Raspberry > Leaves > Discolored leaves

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  • Image: Powdery Mildew 1
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Powdery Mildew
Podosphaera aphanis

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  • Image: Virus 1
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Tomato Ringspot Virus and Mosaic Virus

  • Light to dark green mottling of leaves
  • Leaves may be deformed, blistered, or misshapen
  • Plants show a progressive stunting of growth and poor yield
  • Fruits on infected bushes are small and crumbly
  • General decline in the cane vigor and fruit production
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  • Image: Spider Mites 1
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Spider Mites
Tetranychus urticae

  • Feeding on the underside of leaves causes a “russet” appearance to the leaves; leaves may become distorted
  • In heavy infestations, webbing can be found on underside of leaves
  • Adult spider mites are very small (approximately 1/50 inch in length), and are yellow to dark crimson, with dark spots
  • Mites usually appear in late June-August; more prevalent in hot, dry weather
  • More information on Spider Mites...
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  • Image: Nutrient Deficiency 1
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Nutrient Deficiency

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  • Image: Rust 1
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Orange Rust
Arthuriomyces peckianus

  • Yellow or orange powdery spores on lower leaf surface
  • Orange rust only affects black raspberry
  • Yellow rust only affects red raspberry
  • More information on Orange Rust...
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  • Image: Herbicide Injury

Herbicide Injury

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  • Image: Potato Leafhopper 1

Potato Leafhopper
Empoasca fabae

  • Leaves appear wrinkled from leafhopper feeding; may have a yellow tinge to the leaves
  • Feeding may stunt the plant, resulting in a reduced yield
  • Potato leafhopper adults are lime green, slender, small (⅛ inch long), and wedge-shaped
  • Leafhoppers are present from June-August

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