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1. Typical disease symptoms of Alternaria leaf blight of sunflower A: lesions are dark brown in color with yellow halo and chlorotic symptoms. B: Margins of the leaves are also affected with severe chlorosis. C: Plants showing wilted symptoms with severe leaf blight symptoms.

1. Typical disease symptoms of Alternaria leaf blight of sunflower A: lesions are dark brown in color with yellow halo and chlorotic symptoms. B: Margins of the leaves are also affected with severe chlorosis. C: Plants showing wilted symptoms with severe leaf blight symptoms.

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Sunflower (Helianthus annuus L.) belongs to the Asteraceae family. It exclusively stands among the most valuable oilseed crops. It is known to be an important cash crop due to its primary requirements in the world i.e. edible seeds, high nutritional value, ornamental and etc. Alternaria leaf blight and Sunflower mosaic diseases are main threats tha...