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

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Pepper > Leaves > Discolored leaves

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Verticillium Wilt
Verticillium albo-atrum, Verticillium dahlia

  • A yellow wedge shaped lesion on leaf often with a brown center
  • Leaves yellow and wilt, often one side only
  • Lower leaves wilt first, eventually whole plant wilts
  • In a lengthwise cut of the stem near the soil line, veins are tan, center is green
  • Common in cool temperatures 68° to 75° F
  • More information on Verticillium Wilt...
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Phytophthora Blight
Phytophthora capsici

  • Soft water soaked spots form on fruit
  • Water soaked to tan bleached spots may form on leaves
  • Fruit wither but remain attached and become coated in white fungal growth
  • Entire plant wilts and turns brown
  • Dark sunken spots form on stems, all leaves beyond this spot wilt
  • Disease spreads very rapidly in cool wet weather
  • More information on Phytophthora Blight...
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Virus
Cucumber mosaic virus, potato virus Y, tomato spotted wilt virus and more

  • Leaves are mottled with yellow and light green patches
  • Leaves may be misshapen; unusually long and thin like a shoestring or curled and deformed
  • Fruit may have yellow blotches, mottling or brown rings
  • Plants are stunted even when neighboring plants look healthy and tall
  • More information on Virus...
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Sunscald

  • Young leaves of transplants turn grey with irregular bands on the lower side
  • Affects fruit, young leaves and stems
  • Occurs only on tissue exposed to the sun
  • Fruit turns tan or white on exposed side, may dry out and appear wrinkled
  • Young stems of transplants turn white on exposed side only
  • More information on Sunscald...
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Frost damage/chilling injury

  • Entire leaves, young shoots or the entire plant may be completely discolored and wilted
  • Plant is wilted
  • Inside of pepper is brown

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