Early Blight of Potato

Ans.

Early Blight of Potato:-

Pathogen:- Alternaria solani

Symptoms:-

> It is present in both hills & plains.

> Brown-black necrotic spot-angular, oval shape characterized by concentric rings.

> Several spot coalesce & spread all over the leaf.

> Shot holes on fruits.

Management:-

> Disease free seed tubers should be used for planting.

> Removal and destruction of infected plant debris should be done because the spores lying in the soil are the primary source of infection.

> Very early spraying with Zineb or captan 0.2% and repeating it for every 15 – 20 days gives effective control.

> The variety Kufri Sindhuri possesses a fair degree of resistance.