Agricultural crops :: Pulses :: Chickpea
Ascochyta blight: Ascochyta rabiei
Symptom |
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All plant parts are affected.
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Symptoms appear on leaves as water soaked lesions.
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Symptoms include smaller circular brown spots on leaves.
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Under favorable conditions, these spots enlarge rapidly and coalesce, blighting the leaves and buds.
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In case of severe infection, the entire plant dries up suddenly.
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The lesions are also developed on stems and petioles.
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Late infections result in shriveled and infected seed.
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The disease is seed borne in nature.
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Left over debris in the fields serve as a source.
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Wet and warm weather, and dense crop canopy are conducive to the spread of the disease
Management
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Sow disease-free seed.
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Follow rotation crop.
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Intercrop with wheat, barley, mustard
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Seed treatment with Carbendazim @ 1g/kg of seed. or Hot water seed treatment (52 C for 10 min) to lower the infestation.
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Spray the crop with Mancozeb @ 2.5g/lit if noticed during the growth period.
or Spray Wettable sulphur at the rate of 2.3g/lit of water.
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