SPATIAL AND TEMPORAL DISTRIBUTION OF EPHESTIA-CAUTELLA (WALKER) (LEPIDOPTERA, PYRALIDAE) IN A CONFECTIONERY FACTORY - CAUSAL FACTORS AND MANAGEMENT IMPLICATIONS

A pheromone trapping system was established in a confectionery factory to monitor Ephestia cautella activity, E. cautella was found to be di stributed throughout the factory in an aggregated pattern, which persi sted for most of the study. The highly restricted nature of the popula tion indicated that the blanket application of synergised pyrethrins w as unnecessary in most areas, Analysis also indicated that the applica tion of pyrethrins had Little influence on the distribution of E. caut ella or male moth capture rate, Hygiene, and the distance from an area regarded as a population source, were found to most influence E. caut ella distribution, It was concluded that an integrated management stra tegy relying on pheromone trapping to monitor adult E. cautella plus i mproved sanitation practices to remove existing larval rearing sites a nd minimise potential development sites, was likely to provide superio r control of E. cautella than the blanket application of synergised py rethrins. Copyright (C) 1996 Elsevier Science Ltd