Angoumois Grain Moth (Sitotroga cerealella)

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The Angoumois grain moth is a major threat to stored grains in Sri Lanka, causing significant damage and economic losses. This persistent pest can infest a variety of cereals, reducing their quality and marketability.

Identification

Physical description:
- Adult moths: Small (1/2 inch wingspan), buff to yellowish-brown with darker spots near wingtips. Forewings are lighter than hindwings. Fringed hairs on hindwings.
- Caterpillars: White or yellowish-white with a brown head, growing up to 1/5 inch long.
Habitat: Found wherever grains are stored, including farms, warehouses, mills, and homes.

Behaviour

Life cycle: Complete metamorphosis with four stages: egg, larva (caterpillar), pupa, and adult. The entire cycle can take as little as 4-6 weeks under ideal conditions, allowing for rapid population growth.
Activity patterns: Adult moths are most active at night but can be seen during the day if disturbed. Caterpillars feed continuously throughout their development.

Signs of Infestation

Visual signs: Presence of adult moths flying around stored grains. Webbing on stored grains and food packaging. Damaged kernels with holes or frass (insect droppings).
Behavioral signs: Reduced grain quality with a musty odor.

Control Methods

Prevention: Store grains in airtight containers in cool, dry locations. Regularly inspect stored grains for signs of infestation.
Fumigation: Highly effective for eliminating all life stages in large storage areas.
Insecticides: Use approved insecticides carefully following label instructions. Be aware of potential risks to human health and food safety.
Diatomaceous earth: This natural dust can be used to kill crawling stages of the moth.

809/36, Negombo Road, Mabola, Wattala

+94 77 368 8979

info@ceylonpestcontrol.com

Angoumois Grain Moth (Sitotroga cerealella)

Identification

Behaviour

Signs of Infestation

Control Methods

Need Help?

Identification

Behaviour

Signs of Infestation

Control Methods

Fumigation

Pest Control Services

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