THE CROP DISEASES OF SIKKIM HIMALAYAS

 CROP: BEAN

Scientific Name Phaseolous sp.
Local Name  Ghew Simbi, Singtamey
Family graminaceae
State/World wide World wide.
Common Name of Disease: 1. LEAF SPOT
Local Name of Disease -  Alternaria brassicae
Causal Organism - Phytopthora infestens
Distribution of Disease in Sikkim

- Late blight is the most serious disease in potato in the hills where the weather condition in comparatively more congenial.

Disease Incidence - Low to medium
Site of Infection

-

Dissemination of the Disease -

Symptoms

Brown, circular spot on all parts of the plant; sooty black spot with concentric rings.


Favourable environmental condition for disease
-



Life cycle of Organism
-


Life cycle of Organism -
-

Plant Protection Measures
Treat seed with hot water (50oC for 10min) Practice long crop rotation. Spray seed plot with 1% Bordeaux mixture.




Bioinformatics Sub- DISC, SSCS&T