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    • Asparagus
    • Basil
    • Bean
    • Beet
    • Brassicaceae
      • Brassicaceae (cruciferous) weeds
      • Broccoli
      • Cabbage
      • Cauliflower
      • Radish
    • Carrot
    • Coriander/cilantro
    • Cucurbits
      • Cucumber
      • Pumpkin
      • Squash
      • Watermelon
    • Eggplant
    • Garlic
    • Lettuce
    • Onion/Allium
    • Pea
    • Pepper
    • Potato
    • Spinach
    • Sweet Corn
    • Swiss Chard
    • Tomato
    • Common diseases, pests and problems
  • Pest Management Publications
  • Team Newsletter Archives
  • Vegetable Resources
  • Calendar of Vegetable Events
Extension Network Sites > Pacific Northwest Vegetable Extension Group > Potato powdery scab

Potato powdery scab

Powdery scab on potato

Symptoms on root.
Photo Source: G.Q. Pelter

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