29 Aug Two Major Diseases of Groundnut and Its Management
मूंगफली के दो प्रमुख रोग और उसका प्रबंधन 1. Tikka disease of Groundnut It is also called leaf spot disease of groundnut. It caused losses 20 to 50%. Symptoms: Based on the relative time of spot appearance, disease is categorized as (i) early leaf spot and (ii) late leaf spot and their comparative symptoms are as follows: Characters Early leaf spot (ELS) Late leaf spot (LLS) Caused by fungus Cercaspora arachidicola Cercosporidium personatum Perfect stage of pathogen Mycosphaerella arachidicola Mycosphaerella berkeleyli. Time of spot appearance After 3-4 weeks of sowing (on about one month old plants) After 6-8 weeks of sowing (on about two month old plants) Spot shape Irregular or circular Almost circular Spot colour Reddish brown to black on upper surface & light brown on lower surface. Dark brown...