Cockroaches

Cockroaches

Cockroaches

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Cockroaches

Undoubtedly amongst the most noxious of pests Cockroaches have lived alongside man for hundreds of years. There are over 4,000 different species of Cockroaches worldwide, but here in the UK we are concerned with 5 main species, the Oriental (Blatta Orientalis), German Cockroach (Blattella Germanica), American Cockroach (Periplaneta Americana), Australian Cockroach (Periplaneta Australasiae) and Brown Banded Cockroach (Supella Longipalpa).

Cockroaches foul their environment with faeces or casting and regurgitating food, they taint materials with their characteristic smell, they move from filth to food indiscriminately and are therefore implicated in the mechanical transmission of pathogens such as those causing food poisoning and wound infections.

Biology & Behaviour

Cockroaches have long whip like antennae, which are carried reflexed along their bodies. Their heads are hinged under the pronotum (a shield like covering) and their legs are large and bristly. Cockroaches are omnivorous in addition to conventional foodstuffs they will feed on paper, vomit, human and animal faeces and other Cockroaches. Their peak time of activity is after dark, they carry out in complete metamorphous with the juvenile stages resembling the adult with each Cockroach malting several times in its cycle. The female Cockroach produces egg cases or oothecae. The eggs hatch inside the case and the nymphs Cockroach emerges from them. During the daytime they spend most of their time in harbourages grouped together. This is influenced by them finding the same suitable harbourage and also by them producing an aggregation pheromone, which is a chemical messenger to other Cockroaches of the same species who respond by being attracted to it.

Control

The main species of Cockroach that we as a Company deal with is by far the German Cockroach, before any treatment is carried out a thorough site inspection needs to be done to identify harbourages and species to be dealt with. Treatment may be carried out in several ways, either using residue insecticide in a flow able solution or dust. These may contain insect growth regulator as well as the active insecticide, ULV formulation for airborne attack or gel baits which the insect will feed on in varied environment. A combination of all types of treatment may be required along with follow-up treatments until the problem is solved. After treatment continued monitoring with sticky traps should take place along with identifying the original source of infestation.

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