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Rice Army Worm – Mythimna unipuncta

Available Products
1 mg Standard Lure
Dispenser Details
Natural Rubber Septum
Active Life
4-6 weeks (temperature dependent)
Pest Details
Adult
Wingspan of 40-48 mm. Forewings reddish to yellowishbrown with a small white stigma. Hindwings dark grey.
Larvae
First instars are pale green and become yellow-brown to grey-green with age. Paler coloured ventrally. A white dorsal stripe and white or pink lateral lines are present.
Head is yellowish brown. Fully grown larvae reach 35-40 mm in length.
Eggs
Spherical and white to pale yellow in colour, darkening with age. Laid in small lines of 10-50 eggs. Eggs hatch in 8-10 days.
Distribution
The Americas, Europe, the Middle East and parts of Asia and Africa
Economic Host(s)
Most damaging to arable crops including wheat (Triticum), maize (Zea), rice (Oryza) and oats (Avena).
Symptons/Signs
Larval feeding on leaves results in irregular defoliation of leaves often with only the midrib left. In barley, wheat and rice the panicles and seed heads can be entirely severed. Frass from feeding larvae is usually evident beneath infested plants.
Generations
2-5 (climate dependent)
Monitoring
Adults Present
May – October (climate dependant)
Recommended Trap Density
2 traps per hectare in large uniform areas of crops and 3- 5 traps per hectare in mixed or less dense crop stands.
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 18 months or a freezer for an extended life of 24 months. Always store sealed in original packaging.
Recommended Trap
View Trap

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