Stored Product Insects
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Brown House Moth – Hofmannophila pseudospretella

General
The open wingspan of the adult moth is 15mm-25mm. The upper side of forewings are bronze-brown in colour with several dark brown to black flecks or spots. Characteristics are unreliable, it is advisable to consult an expert.

Significance
Feeds on dried and decaying organic material. Found both as a storage moth attacking wheat and flour and as a domestic pest where it will damage textiles, carpets etc. It is found more commonly in domestic premises than other storage moths. Cold-tolerant it will survive the British winter in unheated premises. Often infestations originate from birds’ nests.

Control
Infestations develop in undisturbed areas. Regular household cleaning will help prevent infestation. Areas under heavy furniture are particularly prone to attack. The roof space should be checked. Treatment consists of identifying the source of the infestation, destroying any infested commodities and applying a residual insecticide to infested areas e.g. cracks and crevices, soft furnishings, floorboards, door frames etc. ULV space spray treatment will also be useful in controlling any infestation.

Number of days spent as:

Egg 8-110
Larva(+20-155 diapores) 70-150
Pupa 13-98
Adult 10-20

The complete life cycle takes 22-63 weeks    

 

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