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conditions, the spots may merge with lesions on the petioles and stems and form long dark streaks. On fruits, first small black specks are seen on…
The soil-borne teliospores may survive in soil without suitable host for as long as ten years. Seed-borne transmission does occur, but is less…
extension onwards. It results in dark-brown staining of the lower nodes. Long dark streaks may also appear at the stem base. On older plants,…
after wilting, until they are completely desiccated. Infected stems show long, dark brown streaks. The vascular tissue in the tubers becomes…
transferred to the eggs and immature stages lose the bacteria after moulting. Long distance dispersal may occur by the accidental transport of…
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