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Corn Stalk Borer – Sesamia nonagrioides

Available Products
1 mg Standard Lure
Dispenser Details
Natural Rubber Septum
Active Life
4-6 weeks (temperature dependent)
Pest Details
Adult
Wingspan of 30-40 mm. Forewings grey to yellowish, marked with a marginal band and small rounded spots. Hindwings are uniformly white.
Larvae
Final instars reach 30-40 mm in length. Body colour variable ranging from yellowish to brownish, rust coloured dorsally.
Eggs
Grooved and whitish in colour, becoming creamy pink with age. Laid in small batches beneath leaf sheaths.
Distribution
Africa, southern Europe and the Middle East.
Economic Host(s)
Rice, maize, sorghum, sugarcane
Symptons/Signs
Larvae rarely feed on the outer leaves, preferring to bore into stems to feed within galleries that become filled with frass. Stem feeding by the larvae results in the death of growing points, dead hearts, stem breakage and wilting of leaves. Larvae also feed on flowers and fruits of some hosts.
Generations
2-4 (depending on temperatures)
Monitoring
Adults Present
March to October (climate dependent)
Recommended Trap Density
Glasshouses: 2 traps per glasshouse. Outdoors: 2 traps per hectare in large uniform areas of crops and 3-5 traps per hectare in less dense or mixed 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. Storein 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.
Recommended Trap
View Trap

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