Ali Raza

 Red stripe and top rot of sugar cane Casual organisms:- Pseudomonas rubrilineans and another name is Acidovorax avenge sub sp. Avenae Symptoms:- The disease first appear as a water soaked elongated streaks which soon become cholorotic and carry long, uniformly dark red stripes than these stripes coalesce to form large bands. The lower half of the leaf is more affected than the tip. The stripes occur mostly on the young and middle aged leaves rather than oldest. Whitish flakes of dried bacterial ooze may be seen on the lower surface of the leaves. Disease cycle:- The bacterium is not well survive in soil and plant debris. It can infect rice, sorghum, pearl millet etc. These host may serve as agents for carry over the bacterium from season to season. Infection starts through wounds and stomata. The bacterium is confined to young tissues of the host. It rapidly multiplies in the parenchymatous tissues and moves to vascular bundles. Management: These host may serve as agents for carry over the bacterium from season to season. Infection starts through wounds and stomata. The bacterium is confined to young tissues of the host. It rapidly multiplies in the parenchymatous tissues and moves to vascular bundles.