invertebrate animal having an exoskeleton (external skeleton), a segmented body, and jointed appendages. three-part body (head, thorax and abdomen), scales covering their bodies and wings,. The scales are modified, flattened "hairs4,500 species
The female lays an average of 150 eggs. The caterpillar bores into a grain kernel after emerging from the egg, remaining there until fully developed. The development period depends on temperature; in Central Europe one, in warmer countries several generations per year Life time 5-10 days
The moth has a wing expanse of 13-19 mm and a length of 6-9 mm. The forewings are clay-yellow and without markings;the hind wings are grey. The rear edges of the forewings and hind wings have long fringes
singly or in clumps200 during a life of 5-10 days
Asian Rice (Oryza sativa), Pearl Millet (Pennisetumglaucum), Sorghum (Sorghum bicolor), wheat (Triticum) and Maize (Zea mays).
The adults are good fliers andcross infestation thus occurs easily. Infestation in bulk grainis confined to the upper mostexposed layers. It is a primarypest of whole cereal grains.
AdultWing expanse of 13-19 mm and a lengthof 6-9 mm.Forewings are clay-yellow and withoutmarkings .The hind wings aregreyRear edges wingshave long fringes
Eggo The female lays eggssingly or in clumps onthe outside of thecereal grains.o The number of eggslaid is variable but maytotal up to 200 duringa life of 5-10 days.
LarvaThe larvae bore in to akernel which they hollowout completely in thecourse of development
PupaPupation also takesplace inside the kernel.Before pupation, thelarva extends theanterior of its chamberto just beneath thesurface of the grain, thusforming a small circularwindow.
The newly emergedadult pushes throughthe window of the seedcoat leaving a small butcharacteristic roundhole; part of the windowoften remains at theedge of the hole.AdultEmergence
Diets The adults moth feed on honey ,water etc. larvae feed on grains. They bore into the seeds of the host plantand feed inside the seed covering.
Damage A primary pest of grain, which may be attackedin the field, Most damage occurs in storage. Attacks all types of cereal grains.
Harvesting and drying Grain moisture content(12-14%) Minimize cracked andbroken grain duringprocessing Don’t mix old and newgrain
Cleaning And Disinfesting TheStorage System By sanitation or hygiene Use of monitoring devices May need to treat with insecticide Malathion (50EC) at 5ml/20l of water @20ml/m2, Fenitrothion (50EC) at 5ml/l water @20ml/m2, Deltamethrin (2.5% WP) at 1.5g/l water @20ml/m2