Time for the changes

Time for the changes

By Professor Moray Anderson

At this time of year it is important to consider how well the fly control units for which you are responsible in your facilities are performing to the best of their ability.

Are the fluorescent tubes producing optimum levels of ultraviolet light? Are the adhesive boards still capable of retaining any insect which lands upon them?

Are the adhesive boards still capable of retaining any insect which lands upon them?

Fluorescent tubes

It is a fact, known to all who work with ultra violet fly control units that the ultra violet light produced by the phosphors within the tubes deteriorates over time.

As a result of the fall in output of the UV light, it has become standard practice within the responsible pest control industry to replace UV tubes when the output has fallen to less than 50% of the initial value. It is felt by most people that with good quality tubes this equates to around 7-8 months operation.

When purchasing tubes to replace those in a unit, it is absolutely imperative to remember that not all of the available tubes are of the same quality. There is a great discrepancy in the output levels from the various tubes available and also in their longevity.

For these reasons it is absolutely essential to select tubes from quality manufacturers. How can you tell what are good quality tubes? Reputable manufacturers like PestWest will be able to supply supportive data for their tubes. These data will outline details of spectral output levels also details of the output level over time, etc.

There is often a great temptation to purchase less expensive tubes, this is always false economy in the long run.

Another point which is worth considering is associated with pest control contracts. If a pest control operator has been given a pest control contract which includes the placement and maintenance of fly control units then the contractor will be contracted to keep a premises pest/fly free. If the contractor is found to be fitting tubes which of poor quality then the contractor could be adjudged to be in breach of that contract which could lead to a dispute between the contractor and customer.

Degradation of UVA output with time

Furthermore it is incumbent upon the contractor, in order to fulfil the contract, to change the UV producing tubes at the correct intervals to ensure maximum efficacy of the units. If the contractor is not changing the tubes at the correct intervals to insure optimum operation, again the judgement may be that the contract is not being fulfilled.

These may seem slightly obscure points, however, the details of pest control contracts are being examined more and more closely. Therefore in order to avoid any unnecessary conflict between contractor and customer change the tubes at the correct intervals and use good quality tubes.

Adhesive boards

Exactly like the choice of tubes outlined above the choice of glueboards is also extremely important. Buying good quality boards is important.

There has been a great deal of research into the development of glueboards which can retain flying insects when they are attracted into a trap by the UV light. It is not just a matter of applying any glue to a board and hoping the flies are caught when they come into contact with the board. It is essential that the glue is not too rapidly degraded by the UV light, that the glue does not dry out quickly, that the glue does not “run” from the board, etc.

Boards from reputable manufacturers have been developed over many years of testing and experimenting. These boards will give many months of reliable and effective trapping of the insects within the fly control units.

Accurate siting is very important

One of the most difficult aspects when introducing a fly control system is deciding on how many units should be placed in premises and where they will give the best performance. There is no guide where to place, as every place shows different needs. To optimise the protection you should always place the EFK:

  • In an area as dark as possible away from the sunlight
  • Between the likely entry points of flying insects and the area to be protected
  • At a height of 1.5 to 2.0 Meter (Wall-mounting), 2.0 to 2.5 Meter for suspended models.
  • In a position so that they can be easily reached and serviced

To download PestWest UK Newsletter Issue 8, please click HERE or on the image below.

PestWest UK Newsletter - Issue 8

Translate »

By continuing to use the site, you agree to the use of cookies. << Privacy Policy >>

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.