The Angoumois Grain Moth is present worldwide and more common in mild climates. It infests wheat, maize, sorghum, barley and oats. Females lay eggs on or near grains, and larvae bore into grains to feed. Larvae construct cocoons and pupate, then emerge as buff or brown moths. The moth completes its life cycle in 7 weeks, with multiple generations per year. Larval feeding can damage 30-50% of grain contents, causing an unpleasant odor. Proper drying and storage practices along with pesticide treatments can manage infestations.

1. Assignment on Angoumois Grain Moth
Submitted To:-Dr.Swati Mehra
Submitted By:-Vishnu Kumar
K2015A55BIV

2. Distribution:-Present worldwide . In Indian sub-continent
the pest is more abundant in the areas where the climate
is rather mild.
Host range:-Wheat,maize,sorghum,barley and oats are
the main grains crops infested.

3. Biology:-Eggs laid singly or in batches on or near grain.
Small and white when freshy laid then turning reddish later on
A full grown larva is about 5mm.long with white body and
yellow-brown head.
Larva constructs a silken cocoon in a cavity made during
feeding and turning into reddish brown pupa.

5. Adult:-The adult is buff,grey-yellow,brown or straw coloured
moth.
It measuring about 10-12mm.in wing expanse.
Wings are narrow pointed fringed with long hairs.

6. Life cycle:-Breeding takes place from April to october.
• It hibernate in winter in the larval stage.
• It pupate in spring.After emergence,moth mate within
24hrs.
• A female lays 150 eggs on an average after one week of
mating.

7. • The incubation period is about 4-8 days in summer.
• Larval stage may last about 3 weeks.
• Pupal stages is of one to two weeks.
• Female adults have a longer life-span then males. It
completes life cycle in 7 weeks in active season and many
generations in a year.

8. Damage:-Damage is maximum in monsoon season.
• Larva bores into grain and feed onto the contents.
• About 30-50% of contents are consumed.
• Infested grains give out an unpleasent smell.
• In a heap of grain,upper layer is more affected and each
grain being covered with scales shed from the moth.

9. Damage of Angoumois Grain Moth:-

10. Management:-Grain should be properly dried upto moisture
12-14%.
• Don’t mix old grain with new grains.
• Proper senitation of storage system.
• Treat storage with Malathion 50EC at 5ml/20Lt of water.
• Grain treatment with Malathion or fumigation with
Aluminium phosphite.