Plant disease encyclopedia

Pick a plant to see the diseases that affect it.

Apple

• Apple scab on apple trees — symptoms and treatment medium
• Black rot on apple trees — symptoms and treatment high
• Cedar apple rust on apple trees — symptoms and treatment medium

Apricot

• Bacterial canker on apricot — symptoms and treatment high
• Brown rot on apricot — symptoms and treatment high

Beans

• Angular leaf spot on beans — symptoms and treatment medium
• Anthracnose on beans — symptoms and treatment high
• Bacterial blight on beans — symptoms and treatment medium
• Rust on beans — symptoms and treatment medium

Bell Pepper

• Bacterial spot on bell pepper — symptoms and treatment medium

Blackberry

• Anthracnose on blackberry — symptoms and treatment medium
• Orange rust on blackberry — symptoms and treatment high

Broccoli

• Black rot on broccoli — symptoms and treatment high
• Clubroot on broccoli — symptoms and treatment high

Cabbage

• Black rot on cabbage — symptoms and treatment high
• Clubroot on cabbage — symptoms and treatment high
• Downy mildew on cabbage — symptoms and treatment medium

Carrot

• Alternaria leaf blight on carrots — symptoms and treatment medium
• Powdery mildew on carrots — symptoms and treatment medium

Cauliflower

• Clubroot on cauliflower — symptoms and treatment high
• Downy mildew on cauliflower — symptoms and treatment medium

Celery

• Septoria leaf spot on celery — symptoms and treatment high

Cherry

• Powdery mildew on cherry — symptoms and treatment medium

Citrus

• Black spot on citrus — symptoms and treatment medium
• Canker on citrus — symptoms and treatment high

Corn

• Common rust on corn — symptoms and treatment medium
• Gray leaf spot on corn — symptoms and treatment medium
• Northern leaf blight on corn — symptoms and treatment high

Cucumber

• Bacterial wilt on cucumber — symptoms and treatment high
• Downy mildew on cucumber — symptoms and treatment high
• Mosaic virus on cucumber — symptoms and treatment high
• Powdery mildew on cucumber — symptoms and treatment medium

Cucurbit

• Powdery mildew on cucurbits — symptoms and treatment medium

Eggplant

• Insect pest damage on eggplant — symptoms and treatment medium
• Leaf spot on eggplant — symptoms and treatment medium
• Mosaic virus on eggplant — symptoms and treatment high
• Phomopsis blight on eggplant — symptoms and treatment medium
• Verticillium wilt on eggplant — symptoms and treatment high
• White mold on eggplant — symptoms and treatment high

Fig

• Mosaic virus on fig — symptoms and treatment medium
• Rust on fig — symptoms and treatment medium

Garlic

• Penicillium rot (blue mold) on garlic — symptoms and treatment medium
• Rust on garlic — symptoms and treatment medium
• White rot on garlic — symptoms and treatment high

Grape

• Black rot on grapes — symptoms and treatment high
• Esca (black measles) on grapes — symptoms and treatment high
• Leaf blight (Isariopsis leaf spot) on grapes — symptoms and treatment medium

Hazelnut

• Bacterial blight on hazelnut — symptoms and treatment medium
• Eastern filbert blight on hazelnut — symptoms and treatment high

Kiwi

• Bacterial canker on kiwi — symptoms and treatment high

Lavender

• Root rot on lavender — symptoms and treatment high
• Shab disease on lavender — symptoms and treatment high

Leek

• Rust on leeks — symptoms and treatment medium
• White tip on leeks — symptoms and treatment medium

Lemon

• Citrus canker on lemon — symptoms and treatment high
• Sooty mold on lemon — symptoms and treatment low

Lettuce

• Downy mildew on lettuce — symptoms and treatment high
• Gray mold (Botrytis) on lettuce — symptoms and treatment high

Melon

• Fusarium wilt on melon — symptoms and treatment high
• Powdery mildew on melon — symptoms and treatment medium

Onion

• Botrytis leaf blight on onions — symptoms and treatment medium
• Downy mildew on onions — symptoms and treatment high
• Fusarium basal rot on onions — symptoms and treatment high

Orange

• Huanglongbing (citrus greening) on orange — symptoms and treatment high

Peach

• Bacterial spot on peach — symptoms and treatment medium

Pear

• Fire blight on pear — symptoms and treatment high
• Rust on pear — symptoms and treatment medium
• Scab on pear — symptoms and treatment medium

Peas

• Ascochyta blight on peas — symptoms and treatment high
• Powdery mildew on peas — symptoms and treatment medium

Plum

• Bacterial spot on plum — symptoms and treatment medium
• Brown rot on plum — symptoms and treatment high
• Plum pox virus (Sharka) on plums — symptoms and treatment high

Pomegranate

• Bacterial blight on pomegranate — symptoms and treatment high
• Fruit rot (heart rot) on pomegranate — symptoms and treatment medium

Potato

• Early blight on potatoes — symptoms and treatment medium
• Late blight on potatoes — symptoms and treatment high

Quince

• Fire blight on quince — symptoms and treatment high
• Leaf blight on quince — symptoms and treatment medium

Radish

• Black rot on radish — symptoms and treatment medium
• Clubroot on radish — symptoms and treatment high

Rose

• Black spot on roses — symptoms and treatment medium
• Powdery mildew on roses — symptoms and treatment medium
• Rose sawfly (rose slug) — damage and treatment medium
• Rust on roses — symptoms and treatment medium

Spinach

• Downy mildew on spinach — symptoms and treatment high
• White rust on spinach — symptoms and treatment medium

Squash

• Powdery mildew on squash — symptoms and treatment medium

Strawberry

• Leaf scorch on strawberries — symptoms and treatment medium

Tomato

• Bacterial spot on tomatoes — symptoms and treatment medium
• Early blight on tomatoes — symptoms and treatment medium
• Late blight on tomatoes — symptoms and treatment high
• Leaf mold on tomatoes — symptoms and treatment medium
• Septoria leaf spot on tomatoes — symptoms and treatment medium
• Target spot on tomatoes — symptoms and treatment medium
• Tomato mosaic virus — symptoms and treatment high
• Tomato yellow leaf curl virus (TYLCV) — symptoms and treatment high
• Two-spotted spider mite on tomatoes — symptoms and treatment medium

Walnut

• Anthracnose on walnut — symptoms and treatment medium
• Walnut blight — symptoms and treatment high

Watermelon

• Anthracnose on watermelon — symptoms and treatment medium
• Downy mildew on watermelon — symptoms and treatment high
• Fusarium wilt on watermelon — symptoms and treatment high
• Mosaic virus on watermelon — symptoms and treatment high

Zucchini

• Mosaic virus on zucchini — symptoms and treatment high
• Powdery mildew on zucchini — symptoms and treatment medium