Skip to Main navigation Skip to Left navigation Skip to Main content Skip to Footer

University of Minnesota Extension

Extension > Garden > Diagnose a problem > What's wrong with my plant? > Vegetable > Pepper > Spots/blotches on fruit

Print Icon Email Icon Share Icon

Pepper > Fruit > Spots/blotches on fruit

1 of 6
  • Image: 1
  • Image: 2
  • Image: 3

Bacterial Spot
Xanthomonas campestris pv. Vesicatoria

  • Fruit has raised corky brown spots
  • Occurs in warm wet weather 75° to 86° F
  • Leaves have round brown spots with a dark edge
  • Leaf spots often start and are most severe on the lower leaves
  • Difficult to see bacterial streaming
  • More information on Bacterial Spot...
2 of 6
  • Image: 1
  • Image: 2
  • Image: 3

Blossom End Rot

  • The side or bottom of the pepper turns tan and soft, then black and sunken
  • Affects only fruit
  • Secondary rot from fungi or bacteria may occur on affected fruit
  • Fruit may look short or stumpy, not fully expanded
  • Common when water levels vary from irrigation or drought followed by rain
  • More information on Blossom End Rot...
3 of 6
  • Image: 1
  • Image: 2

Anthracnose Fruit Rot
Colletotrichum coccodes

  • Fruit spots are sunken and round
  • Infections are visible only on ripe and over ripe peppers
  • Mature fruit spots have a black center
  • Fruit spots produce pink spores with moisture
  • No visible spots on leaves and stems
  • Also occurs on tomato and eggplant
  • More information on Anthracnose Fruit Rot ...
4 of 6
  • Image: 1
  • Image: 2


  • Fruit turns tan or white on exposed side, may dry out and appear wrinkled
  • Affects fruit, young leaves and stems
  • Occurs only on tissue exposed to the sun
  • Young leaves of transplants turn grey with irregular bands on the lower side
  • Young stems of transplants turn white on exposed side only
  • More information on Sunscald ...
5 of 6
  • Image: 1
  • Image: 2
  • Image: 3

Cucumber mosaic virus, potato virus Y, tomato spotted wilt virus and more

  • Fruit may have yellow blotches, mottling or brown rings
  • Leaves are mottled with yellow and light green patches
  • Leaves may be misshapen; unusually long and thin like a shoestring or curled and deformed
  • Plants are stunted even when neighboring plants look healthy and tall
  • More information on Virus ...
6 of 6
  • Image: 1
  • Image: 2
  • Image: 3

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...

Don't see what you're looking for?

  • © Regents of the University of Minnesota. All rights reserved.
  • The University of Minnesota is an equal opportunity educator and employer. Privacy