Flies Control

How do I know if I have a Problem? If you have a Cluster Fly problem you will notice dead, dieing or live flies around windows or in loft spaces.

You may even see them sunning themselves on outside walls. The time of year is important. If you are seeing flies in the Summer then they are probably another type of fly, maybe a Bluebottle or related species or perhaps House Flies.

Preparation Prior to Treatment

There isn?t much you can do prior to treatment but the insecticide sprays that may be used last much longer on clean dust free surfaces.

Treatment

The infested and surrounding areas have been treated with one (or all) of the following insecticide sprays: Demand CS'* which contains Lambda-cyhalothrin, HSE Number 6287, made by Sorex or Permost Uni, HSE Number 6399 which contains Permethrin & Tetramethrin & made by Hockley International or K-Othrine WG250, HSE Number 5390 which contains deltamethrin 25%. These insecticides are the most modern insecticide available. Also a powder might be used called Ficam D*. This
contains an insecticide in a dust formulation @ 1% w/w Bendiocarb.
A smoke generator may have been used, this is called a Coopex Mini Smoke& contains Permethrin. The type of insecticide used will depend on individual circumstances and be decided by the technician.
All these insecticides are biodegradable, almost odourless, non-tainting & do not corrode or stain. They are not highly toxic towards mammals but are extremely so to all forms of crawling and flying public health pests. All the resting places will have been sprayed and possibly dusted.

What do I do afterwards?

After treatment do not let domestic animals walk on treated surfaces until dry and if bare skin comes into contact while wet then wash. As long as the surfaces that have been treated are not washed down the insecticide will remain active for up to 3 months. This really only applies to clean areas inside.
Dying flies may be seen up to 4 weeks after treatment. There is a possibility that any survivors will build up their numbers to nuisance level again. In fact once a hibernation site is selected it will be used year after year. The treatment will not eliminate the fly infestation but kill the vast majority, flies will take time to die, how quickly depends on temperature and how much insecticide they have absorbed.