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European Grain Moth – Nemapogon granella

Available Products
1 mg Standard Lure
Dispenser Details
Natural Rubber Septum
Active Life
4-6 weeks (temperature dependent)
Pest Details
Adult
Wingspan of 9-18 mm and body length of ca. 7mm. Forewing white with a basal black bar and mottled with brownish, black and grey patches. Hindwings are uniformly greyish-brown and surrounded by a fringe of long hairs. Head is covered with yellowish-white spiky scales.
Larvae
Final instars reach a length of 7-10 mm. Body white with a pale yellow to dark brown head. Prothoracic plate is yellowish to pale brown.
Eggs
Laid singly or in small batches directly onto a food source.
Distribution
Europe, North America, Argentina, northern Asia and Australia.
Economic Host(s)
A wide variety of cereal-based products including wheat oats and barley and nuts, seeds and dried fruit.
Symptons/Signs
Larvae typically infest the top 5-6cm of grain, feeding initially on the germ and then the endosperm. Signs include clumped grain with silk and frass and pupal cases. Infestations can result in a noxious odour.
Generations
2 or more (climate dependent)
Monitoring
Adults Present
March to September (often longer periods than this in warmer buildings)
Recommended Trap Density
Indoors, traps should be placed 10-15 m apart. Once the location of an outbreak has been established more traps can be added to the affected area.
Trap Maintenance
Check traps on a regular basis; at least twice a week. Replace the pheromone dispensers every 4 weeks to achieve optimum results. Replace sticky inserts once they become filled with dust or insects.
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.
Recommended Trap
View Trap

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