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MANDARIN ORANGE Citrus Cranker

Name of Crop MANDARIN ORANGE
Scientific Name Citrus reticulate
Local Name Santra
Family Rutaceae
Distribution state/World wide Sikkim, Assam, Meghalaya, Nagpur, Darjeeling Nepal, Bhutan
Common Name of Disease CITRUS CANKER
Local Name of Disease CITRUS CANKER
Causal Organism Xanthomonas compestris p.v.citri
Distribution of Disease in Sikkim Throughout citrus growing areas of the state
Disease Incidence Moderate
Site of Infection
The disease appears on leaves, twigs, petioles, branches, fruits, fruit stalk including thorns
Symptoms At the initial stage minute water soaked lesion appears as yellow spot and gradually enlarges up to 2-4mm in diameter and appear as raised rough brownish corky pustules on leaves or other parts of the plant. On leaves, the pustules are surrounded by a characteristic yellow halo. The canker lesion on fruit do not possess yellow halo
Favourable enviromental condition for disease The climatic factors most favourable are high temperature and precipitation during period of most rapid growth of the ci
Mode of Transmission
Both seed and soil-borne disease
Plant Protection Measures
Prone off the infected plant parts and burnt them Spray with 500 ppm streptocycline sulphate at 15 days interval. 1% Bordoux misture can be sprayed soon after preparation