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Indian Meal Moth
Biology: Adult moths are about 8 to 10mm long when at rest and have a wing spread of about 18 to 20mm. When viewed from above with the wings folded over the back, the outer 1/3 of the wing appears
reddish-brown or bronze coloured "at the wing tips" while the inner 2/3 of the wing "at the basal portion" is light grey to ochre-yellow. The head and thorax are reddish-brown and the hind wings grey.
Brown-headed larvae are dirty white, sometimes tinged pink or green. The female moth lays between 60 and 300 eggs, singly or in clusters, on or near the foodstuffs. Eggs hatch in 2 to 14 days with larvae or
"tiny whitish caterpillars" dispersing within a few hours. Larvae move to foodstuffs, and feed in or near a tunnel-like case of frass and silk which they web together. Under good conditions, the entire life cycle requires
six to eight weeks and can be active all year round. However, in cold climates, larvae over-winter and pupate in March.
Control: Controlling this pest requires careful inspection of all stored cereal foods, discarding the heavily infested material. Flour dust and other debris in cracks and crevices needs to be cleaned away or vacuumed.
Following cleaning, treatment can be carried out using a residual insecticide, or ULV for larger infestations or big areas.
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Stored Product Insect Pests Cambridgeshire
- Cambridge
- Chatteris
- Ely
- Huntingdon
- March
- Market Deeping
- Oundle
- Peterborough
- Ramsey
- Soham
- St Neots
- Whittlesey
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Stored Product Insect Pests Essex
- Basildon
- Benfleet
- Bishops Stortford
- Braintree
- Brentwood
- Canvey Island
- Chelmsford
- Clacton
- Colcester
- Great Dunmow
- Halstead
- Harlow
- Harwich
- Leigh on sea
- Maldon
- Rayleigh
- Rochford
- Saffron Walden
- Southend
- Stansted
- Thorpe Bay
- Tiptree
- Walton on Naze
- Westcliff on Sea
- Witham
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Stored Product Insect Pests Norfolk
- Acle
- Aylsham
- Dereham
- Diss
- Downham Market
- Fakenham
- Gorleston
- Great Yarmouth
- Holt
- Hunstanton
- Kings Lynn
- North Walsham
- Norwich
- Sheringham
- Stalham
- Swaffham
- Thetford
- Watton
- Wisbech
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Stored Product Insect Pests Suffolk
- Aldeburgh
- Beccles
- Brandon
- Bungay
- Bury St Edmunds
- Clare
- Eye
- Felixstowe
- Framlingham
- Harleston
- Haverhill
- Ipswich
- Lakenheath
- Lavenham
- Lowestoft
- Mildenhall
- Needham Market
- Newmarket
- Saxmundham
- Southwold
- Stowmarket
- Sudbury
- Wickham Market
- Woodbridge
- Yoxford
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