A curated plant-pathology library covering the most common fungal, bacterial, viral, abiotic and pest disorders across major crops and ornamentals. Each entry links to a full diagnosis and treatment plan powered by PlantWatch AI.
Every profile below follows the same structure a field pathologist uses: symptoms first, then the environmental causes that trigger an outbreak, followed by a treatment and a prevention plan you can act on the same day. If you're not sure which entry matches what you're seeing, upload a photo instead — PlantWatch AI narrows it down from a single leaf.
Phytophthora infestans
Affects Tomato, Potato.
Erysiphales spp.
Affects Cucurbits, Grape, Rose, Wheat.
Septoria, Cercospora, Alternaria spp.
Affects Tomato, Bean, Maize, Ornamentals.
Puccinia, Uromyces spp.
Affects Wheat, Bean, Coffee, Roses.
Ralstonia solanacearum / Erwinia tracheiphila
Affects Tomato, Potato, Banana, Cucurbits.
TMV, CMV, ZYMV
Affects Tomato, Pepper, Tobacco, Cucurbits.
Abiotic — nutrient stress
Affects All crops.
Aphidoidea
Affects Vegetables, Fruit trees, Ornamentals.
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