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02 October 2024 - News
Cockroaches belong to the order Blattodea, which includes over 4,500 species. In some species, adults can grow over 10 cm in length, while in others, they do not exceed 2 mm.
Blattodea are generally nocturnal insects, poor fliers, but excellent runners with remarkable speed. They have a strong sense of direction and can quickly reach their shelter in case of danger. Cockroaches are primarily omnivorous in their diet.
Some species, more than others, have fully adapted to environments created by humans, settling in food industries, shops, hospitals, and homes, thriving in settings with a favorable microclimate, more or less similar to their original habitat.
Cockroaches are insects characterized by a dorsoventrally flattened body, long antennae, leathery wings, a chewing mouthpart, and sensory organs that protrude from the terminal part of the abdomen.
The eggs of cockroaches are enclosed in oothecae, protective casings whose shape, size, and number of eggs contained vary depending on the species. Upon hatching, the juvenile forms (nymphs) emerge from the leathery case. A gradual metamorphosis (hemimetabolism) will cause these individuals to increase in size, eventually reaching the nymph stage and later the adult insect stage. Through molts, varying in number depending on the species, these insects develop a new cuticle (exoskeleton), shedding the old one. Between molts, the insect increases in weight, while this process also results in an increase in body size.
The species of interest to us, due to their impact on human activities and the hygienic and health concerns they pose, are four.
Below are two types of intervention (liquid and gel) to be adopted based on the distribution area and the extent of the infestation.
Interventions using insecticidal gel baits are preferred as they take advantage of the infestation itself to transfer the toxic substance within the colonies, where the feces and the dead body of the insect are consumed by other individuals, which in turn become contaminated. The service should be performed with the following: