The so far mild Winter has meant its been a slow season for some of the Autumn/Winter pests. Cluster flies have barely been seen.
But now as the nights are becoming colder and colder cluster flies are becoming a bigger problem for customers.
Cluster flies are a field fly who spend most of their lives out in open fields. They have a parasitic larval stage that eats earthworms.
They only become a nuisance to home owners when the temperature drops and the adult fly wants to hibernate to avoid the worst of the weather. They cluster in sometimes huge numbers in roof voids. They have an aggregation pheromone that brings more flies in to the huddle.
To treat we use fumigation devices or contact sprays. In the photo a fumigation bomb is being used to fumigate a small void at the top of flats.
Pest Control Wirral and Chester