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First report of leaf blight caused by Alternaria alternata on Hevea brasiliensis in India


, : First report of leaf blight caused by Alternaria alternata on Hevea brasiliensis in India. Journal of Plantation Crops 34(3): 449-454

Alternaria leaf blight caused by Alternaria alternata was observed on rubber (Hevea brasiliensis) tree, the source of natural rubber latex of commercial value. Initial symptoms appeared on young leaves as minute spots, which enlarged with the growth of the leaves. A characteristic browning and blackening of veins forming a 'fishbone' or 'railway track' symptom was noticed at later stage of the disease.

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