Pest Management: Symptoms
Sorghum - Sorghum midge: Contarinia sorghicola
- Symptoms of Damage:
Pollen shedding due to egg laying
White pupal cases protruding out from the grains
Chaffy grains with holes
- Identification of Pest:
Adult -Fly is small, fragile with a bright orange abdomen and a pair of transparent wings.
Set up of light traps till mid night to monitor, attract and kill adults of stem borer, grain midge and earhead caterpillars.
Apply any one of the following on 3rd and 18th day after panicle emergence :
Carbaryl 10 D 25kg/ha
Malathion 5 D 25kg/ha
Phosalone 4 D 25kg/ha
Neem seed kernel extract 5% (or) Spray malathion 50 EC @ 1600ml/ha or phosalone 1150ml/ha
The sowing of sorghum should be completed in as short a time as possible to avoid continuous flowering which favours grain midge
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