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Pest Management: Symptoms

Sorghum  -  Earhead bug: Calocoris angustatus

Pest management
Symptoms of Damage: 
 Nymphs and adult suck the juice from within the grains when they are in the milky stage
 Grains shrink and turn black in colour and ill filled (or) chaffy.
 Presence of large number of nymphs and adults are seen on the ear head.
Identification of Pest: 
 Egg -Blue cigar shaped , laid under the glumes or into the middle of the florets
 Nymphs -Slender, green in colour
 Adults -Male is green in colour. Female is green with a brown margin
Management: 
 ETL:10 /earhead
 Apply any one of the following on 3rd and 18th day after panicle emergence :
 Carbaryl 10 D 25kg/ha
 Malathion 5 D 25kg/ha
 Neem seed kernel extract 5%
 Spray twice with Malathion 50 EC 500ml/ha. in 500 lit of water at 10% heading and 9days after
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