Leaf blight disease: A serious threat to large cardamom cultivation in sub-Himalayan region of North-Eastern India
2025
Trisha, Bagchi | Niranjan, Roy | Arun Kumar, Dutta
Colletotrichum gloeosporioides is a highly destructive fungal pathogen that causes significant yield losses in large cardamoms (Amomum subulatum Roxb.). The sexual, or teleomorphic, stage of the fungus is known as Glomerella cingulata. Symptoms of the disease include water-soaked lesions and necrotic spots that gradually expand and cause the affected tissue to become blighted. Infected old tillers are the main reason for the spread of the disease, serving as an inoculum for upcoming seasons. Despite the development of various biological, cultural, chemical, and host resistance strategies to mitigate yield losses and limit pathogen growth, field data indicate that the disease continues to result in substantial yield reductions, emphasizing the need for further research. Therefore, the aim of this work is to provide a comprehensive review of leaf blight disease in large cardamom and the pathogen responsible for the infection.
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