Cockroaches

Negative Characteristics: Cockroaches spread disease through infecting our food.

Redeeming Characteristics: Whilst living alongside us, none.

Quick Tips:

Hygeine is the cockroachs' greatest enemy. Make sure to eliminate all sources of food, water and shelter.
Cockroach traps are good if replaced regularly, see below for the best ones.
Sprays and powders are highly effective but be sure to get the insecticide into all cracks and crevices.
There are some good non-toxic sprays and powders available, see below.
A multi-pronged approach to control is best.

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Best Methods for Controlling your Pest

DIY or The Professionals?

Small infestations may be suitable for DIY control
Large infestations or within large multi-occupancy buildings are a job for the professionals

The four keys to effective cockroach control are hygiene, control, proofing and monitoring.

There are four product types required to ensure successful cockroad control and these should generaly be used in combination to effect best and swiftest control:

Residual insecticide sprays: leave a thin film of toxic deposit on surfaces and will kill cockroaches for a limited period of time, usually about two weeks before a fresh application is required.

Apply to cracks and crevices where cockroaches hide and move around, like under cabinets, etc.

Bear in mind that in some areas of the country German Cockroaches have developed resistance to some insecticides so if after a couple of weeks you notice no difference in population levels, try a different active ingredient.

Non-residual insecticide spray: kills on contact only, very limited or zero residual effectiveness depending on product. However, most contain pyrethrins which, whilst lethal to cockroaches, also act as a flushing agent, exciting the cockroach which then rapidly leaves it's hiding place. If it has received insuficient contact to cause death, then the effect may only be to drive it to other hiding places.

Apply directly onto the insect, or into cracks and crevices if you want to drive cockroaches out of hiding and over previously laid residual insecticide.

Insecticide Dust: can penetrate cockroach hiding areas that other insecticides cannot reach. When applied to dry locations they have a longer useful life than residual sprays. Some dusts contain insecticide and others contain no organic chemicals and act by rubbing off the protective waxes that cover the cockroaches body, causing death by dehydration.

Apply into dry cracks and crevices, under and behind cupboards where they may, if left dry, remain active for months or even years. Dusts can be used with great effect in areas where sprays could not be used, such as in and around electrical appliances.

Poson Baits: can be applied in areas where it may not be acceptable to use insecticidal sprays; for instance in kitchens where children and pets have access.

In such situations baits may be hiden and protected within specially designed tamper-proof bait boxes. Bait within bait containers can be highly effective but all alternative food sources should be eliminated in order to maximise effectiveness. Also, the more bait stations the better as in most cases cockroaches need to move within a few centimetres before being attracted into the bait stations.

Place the bait stations within and under cupboards, under cookers, refridgerators and in any areas where the cockroaches are known to frequent.

Use pesticides safely and always read and understand the label