Early blight
Common Name
Scientific Name
Alternaria solani
Issue
Bacteria
Causes
Early blight thrives best under warm wet conditions.
Prevention
Use certified disease-free seeds. Practise rotation with non-solanaceaous crops. Practise good field hygiene. Avoid overhead irrigation and lay down a thick organic mulch to prevent soil splashing onto lower leaves.
Control
Remove infected leaves during the growing season and discard all badly infected potato plant debris at the end of each season.