Wingspan of 30-35 mm and a body length of ca. 14-17 mm. Forewings are straw coloured with dark brown streaks across each forewing. Hindwings are white.
Larvae
Final instars reach 35 mm in length. Body is purple to pink dorsally and white ventrally. The head is orange-red.
Eggs
Bead like and yellowish in colour. Laid in 1-3 rows, usually on the inner surface of leaf sheaths.
Distribution
Southern Asia and northern Oceania
Economic Host(s)
Rice, millet, sugarcane, sorghum, wheat and maize.
Symptons/Signs
Larvae feed on rolled leaves and bore into stems to feed. Boring into stems results in damage to growing points, wilting, dead hearts and stem breakage.
Generations
2-6 (depending on temperatures)
Monitoring
Adults Present
March to September (climate dependant)
Recommended Trap Density
2-4 traps per hectare in dense uniform crop stands and 5-6 traps per hectare in less dense and mixed crops.
Trap Maintenance
Check traps on a regular basis; at least twice a week. Replace the pheromone dispensers every 4 weeks to achieve optimum results.
Storage
Keep product away from heat and direct sunlight. Store in a refrigerator for a shelf life of 12 months or a freezer for an extended life of 24 months. Always store sealed in
original packaging.
