A variety of diseases affect coffee plants.
Fungal Coffee Plant Diseases
Fungal diseases include: algal (red) leaf spot (cephaleuros); bark disease; berry blotch; brown blight; brown eye spot; brown leaf spot; canker; coffee berry disease; die-back; leaf blight; leaf spot; phoma; pink disease; red blister disease (affects Robusta plants); rust (orange rust or leaf rust); rust (powdery or grey rust); South America leaf spot (Omphalia flavida; Mycena citricolor; Stilbum flavidum [anamorph]); thread blight; tip blast; tracheomycosis (wilt) [Gibberella xylarioides; Fusarium xylarioides]; wilt [Ceratocystis fimbriata; Fusarium oxysporum f.sp. coffea]; and warty berry.
Rotting Coffee Plant Diseases
Rotting diseases, which are also fungal diseases, include: armillaria root rot (Armillaria mellea); black (Rosellinia) root rot; black (seedling) root rot; dry root rot (Fusarium solani); collar rot (Gibberella stilboides; telemorph); and red root rot (Ganoderma philippii).
Parasitic and Viral Coffee Plant Diseases
A nematode/parasitic disease is called root knot, and a viral disease is blister spot. Another disease/disorder is hot and cold disease, which is a physiological effect most common at higher altitudes due to exposure to temperature extremes.
Coffee and Espresso Brewing Tips
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