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THE CROP DISEASES OF SIKKIM
HIMALAYAS |
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CROP:
TOMATO
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Scientific Name |
Lycopersicum esculentum |
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State/World wide |
South America; States:
U.P, W.B, Bihar, H.P,T.N,Punjab, Gujrat,
Sikkim, Meghalaya, etc.
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Common Name of Disease:
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3. BACTERIAL WILT |
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Local Name of Disease |
-Ohilini bimar |
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Causal Organism |
- Ralstonia
solanacearum |
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Distribution of Disease in Sikkim
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This disease is most serious disease in tomatoes grown under
green houses due to high humidity and high temperature built
up.
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Disease Incidence |
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Low to medium |
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Site of Infection |
- The bacterium
invades a host via root injuries or at the point of
emergence of root hairs and lateral roots.
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Dissemination of the Disease |
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Dissemination of bacterial wilt
disease takes place through infected seeds,
contaminated soil and water.
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Symptoms
Sudden wilting of plants due to choking of vascular tissues
with bacterium.
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Favourable environmental condition for
disease
Water stagnation in the field during rainy season.Hot and humid weather condition favours the disease
incidence.
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Mode of Transmission
Through
infected crop debris left in the soil.
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Life cycle of
Organism -
Mycelium
or conidia survives in plant debris in soil.
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Plant Protection
Measures
Grow
resistant variety ( Kufri Bad Shaw ) is resistant to both
late blight and early blight.
Since it a soil borne disease, crop rotation and field
sanitation is necessary to control the disease.
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| Bioinformatics Sub- DISC, SSCS&T |
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