🍄Fungal diseasesSevere

Anthracnose

Risk near you, next 48h

See whether your local forecast favours this disease right now.

When it strikes

Temperature
20–30°C
Humidity
≥85%
Leaf wetness
Required
Season
Summer

About

Anthracnose (Colletotrichum species) is a warm-wet-weather disease of beans, cucurbits, tomatoes, and many trees and shrubs, causing sunken fruit lesions that ruin marketable yield.

Symptoms

Dark, sunken circular lesions on fruit often oozing pink spore masses when wet; irregular dead blotches on leaves along veins; cankers on stems and twigs.

Organic Treatment

Remove infected fruit and debris, mulch to stop soil splash, and apply copper in wet spells. Avoid working among wet plants.

Chemical Treatment

Chlorothalonil or azoxystrobin on a protectant schedule during warm rainy periods.

Prevention

Use clean seed, rotate crops, stake for airflow, water at the base, and clear infected debris at season end.

Related problems

Anthracnose risk by location