It mostly affects leaves or some time leaves and tender shoots. In earlier stage, 2- 3m.m size yellow spots develop on the lower surface of leaves.
Rust lesions develop as orange yellow spots on lower surface of leaves. Thousasnds of small rust appear on the leaf. The upper surface of the leaves become yellow to brown.
At later stages, yellow rusty appearances are found on the entire undersurface of the leaf. The orange yellow spots are followed by black spots followed by necrosis.
Infected leaves defoliate and branch remains without any leaves. The plants remain stunted with reduced yield. Reduced yileds and reduced profit are obtained in these kind of infected crops.
Management
Collection and destruction of diseased leaves. Grow S 238, S 395 resistant varieties.
Spraying of Bordeaux mixture 0.5% before flowering, during rainy and after rainy seasons in the month of may, august- september and october respectively will prevent from the diseases.
