Disease Reference

Each disease entry includes pathogen type, affected crops, symptoms, controls, and resistant varieties where they exist. Resistant variety selection is the most powerful low-input disease management tool; spray programs are noted but follow.

• Cedar Apple Rust (fungal)

  Affects: apple.

• Fire Blight (bacterial)

  Affects: apple, pear.

• Apple Scab (fungal)

  Affects: apple.

• Powdery Mildew (fungal)

  Affects: apple.

• Brown Rot (fungal)

  Affects: peach, plum european, plum japanese, cherry sweet, cherry sour, apricot.

• Peach Leaf Curl (fungal)

  Affects: peach.

• Bacterial Spot (bacterial)

  Affects: peach, plum japanese, apricot.

• Pear Scab (fungal)

  Affects: pear.

• Black Knot (fungal)

  Affects: plum european, plum japanese, cherry sour.

• Bacterial Canker (bacterial)

  Affects: cherry sweet, cherry sour.

• Cherry Leaf Spot (fungal)

  Affects: cherry sour.

• Fig Rust (fungal)

  Affects: fig.

• Fig Fruit Souring (physiological)

  Affects: fig.

• Pomegranate Leaf Blotch (fungal)

  Affects: pomegranate.