Fossil evidence shows that cockroaches have existed almost unchanged for more than 250 million years and have been described as “God’s Perfect Creature”. They are amazingly adaptable and hard and can live and breed under hostile conditions.

The three main pest types in building are:

  1. American Cockroach (Periplaneta Americana)
  2. German Cockroach (Blattala Germanica)
  3. Brown Banded Cockroach (Supella Longipalpa)

They prefer a warm and moist habitat close to food sources e.g. kitchens, rubbish chutes and toilets. Due to their close association with filth (feeding and breeding in highly unsanitary environment like sewers, garbage dumps and drains) and their indiscriminate wandering in kitchens and pantry, they are capable of spreading diseases.

Indicators of their existence are the telltale odor, droppings, egg capsules (ootheca), damage packaging especially of food and moulted body shells.

American Cockroach
German Cockroach
Brown Banded Cockroach

Cockroaches Chemical Control

The first line of defense against cockroaches is their restriction from entering into the premises by the implementation of good sanitation, construction, maintenance and exclusion program. PEST INDIA is a strong advocate for sanitation and removal of pest’s harborage sites in and around the premises.

Cockroach controlThe second line of defense includes the application of suitable pesticides to strategic positions (where cockroaches harbor, as well as known and potential breeding sites). Insecticidal spray would be applied to areas where spraying can be carried out. This leaves an insecticidal deposits having long residual action. Such deposits are capable of killing young cockroaches (nymphs) which may hatch weeks after our treatment. Insecticidal dusts or gel baits would be applied to dry harborages and the undisturbed deposits would remain effective for many weeks.

Our trained serviceman, having a working knowledge of pests’ behavior and control strategies, would apply the use of safe, environmental friendly and residual pesticides. This involves finding the structural defects and other potential trouble spots that might need to be physically corrected by clients after proper chemical treatment.

The selection of chemical preparations to be used depends mainly on the type of pests infestation encountered.

Recommendation For The Restriction Of Cockroach

Control must include precautions to restrict the import of crawling insects into the premises. This is their main method of entry. Cockroaches and most Stored Product Pests do not travel far on their own; they rely on our life-style for transport in goods, cartons and packages.

They may however penetrate adjacent parts of a building through the most minute apertures. Walls, floors and ceiling should have the smoothest possible surfaces which are impervious and without crevices.

Expansion and contraction joints should be filled with a material, which is matic, and allows for movements.

Restriction of insects involves the careful selection and use of materials to provide smooth, impervious surface whenever possible, devoid of cracks and crevices where insects can hide, breed and feed. Covings at wall floor junction reduce the accumulation of debris and assist effective cleaning.

Tiled surfaces, which are not properly grouted, provide harborage for cockroaches, particularly where higher than average temperatures prevail.

Leaks from roof, gutters, gullies or pipes, which are damp, encourage mould growth, which insects can feed on.


Gel baiting might be carried out during subsequent visits, where gel baits are placed at strategic locations. This is the latest technique whereby very minimal spraying is required. Thus, there are no nasty odors’ and a chance of contamination is very low. Additionally, there is long term effectiveness as the lifespan of the gel is approximately two years.

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