Symptoms

• Larvae bores in to the shoot and feeds on the Internal tissues and causes typical dead heart symptom.
• Bore holes visible on stem near to nodes
• Young larvae crawls and feeds on tender folded leaves causing shot holes

Management

• Collection and destruction of the stubbles.
• Deep summer ploughing (not recommended under conservation agriculture)
• Planting of Napier grass in the boundary as a trap crop.
• Inter-crop maize with cowpea in 2:1 ratio.
• Two releases of Trichogramma chilonis 8 cards/ha (1,50,000 parasitized eggs/ha) at 7 and 15 days after germination.
• Remove and destroy dead hearts

Chemical Control

Sl.No	Generic Name	Trade Name	Color code	Dosage/litre	Knapsack Sprayer (Capacity 10L)	Dosage/acre (200 L)	Dosage/hectare (500 L)
1	Dimethoate 30 EC	Nugor,Rogor, Tagor, Tara 909	Yellow	1.5-4.5 ml/1 litre of water	15-45 ml	300-900 ml	750-2250 ml

Extremely Toxic

Highly Toxic

Moderately Toxic

Slightly Toxic