Distribution of Ephestia elutella in a tobacco-processing factory in Portugal.

TL;DRAbstract

<title>Abstract</title> Stored tobacco may be damaged by <italic>E. elutella</italic>. The larvae eat the leaves and contaminate the product with their silk, exuvia and excreta. Pheromone traps were used to monitor the presence of male moths over a three-year period (1999-2001) in a tobacco-processing factory in Portugal. Trap captures were used to determine spatial distribution of male moths at different locations inside the factory. Of the 2574 adult <italic>E. elutella</italic> caught, 54% were captured only in one store. The lowest temperatures recorded from December to February were least favourable to <italic>E. elutella</italic>, whereas temperatures observed from June to September was most favourable. Inside the processing factory, most observations indicated an aggregated dispersion pattern of <italic>E. elutella</italic>.

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