Vol. 10, Issue 5 (2021)

Author(s):
Pansuriya Dhaval, Poonam P Shete, Mohammed Faraaz and Dipen Dholu

Abstract:
Alternaria solani is a disease that causes early blight in tomatoes, as well as potato and other Solanaceae family crops. Due to early blight up to 79% yield loss reported in different countries. A. solani cause severe infection in tomato crop and infection occur in all the part of plant stem, leaf, and fruit. It may cause damping off, stem canker, fruit rot, and collar rot, among other symptoms. The pathogen causes a dark lesion with a yellow halo and a concentric ring-like symptom. Pathogen septate and branched mycelium and conidiophores produce muriform conidia it may singly or in a chain. The pathogen can survive in the form of mycelium and conidia in the soil and dry and warm weather, 25-30℃ temperature required for growth of pathogen. Crop rotation, removal of contaminated plant waste, and the use of chemicals such as Bavistin, Score, Sanit, kavach, Isignia, Antracol, and others to manage early blight of tomatoes are also effective ways to handle the disease.