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LOCATION: HOME > PESTS > Rust Red Grain Beetle

Habitat

Distributed globally, this species is commonly found in grain storage situations.



Biology

Their relatively high minimum breeding temperature of 18 to 22c reflects their sub tropical origin. 40 - 50% RH is required for development. Eggs are laid singly within the foodstuff, adhering to it. Larvae attack food immediately on emergence, moving through approximately 4 moults before pupation which takes place in the food commodity. Adults emerge, mate and continue the cycle, which under optimum conditions may be completed within 20 days. In suitable conditions of high temperature, adults may fly.

Cryptolestes ferrugineus

Insecta     Coleoptera   

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Pest Status

Often occurring in conjunction with other primary grain pests such as weevils and saw tooth grain beetles, it is associated with high temperature and humidity caused by other infestations. Prevalent in the hot conditions of late summer, populations can grow to large numbers. Will also infest dried fruit and oil seed but is more usually found in cereal products.



Control

Good hygiene and maintenance are essential. Use of residual insecticides and admixtures where permitted may help in prevention and control.

 

 


   

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