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Disease/Pest

area wise diseases

Crop Name:

Sorghum

Disease/Pest Name:

Loose Smut

Reported Area:

Selapadu

Reported Mandal:

Chebrolu

Symptoms:

The affected plants can be detected before the ears come out.
They are shorter than the healthy plants with thinner stalks and marked tillering.
The ears come out much earlier than the healthy.
The glumes are hypertrophied and the earhead gives a loose appearance than the healthy.
The sorus is covered by thin membrance which ruptures very early, exposing the spores even as the head emerges from the sheath.

Causal_organism:

Sphacelotheca cruenta

Curative Measures:

Collect smutted earheads in cloth bags and destruct by dipping in boiling water.

Preventive Methods:

Crop rotation and Field sanitation are highly recommended in dry soil conditions where soil survival smut spores is possible.
Seed treatment with Carboxin @ 2g/kg (or) Captan/Thiram @ 4g/kg seed.

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