Cockroaches are insects of the order Blattaria or Blattodea, of which about 30 species out of 4500 total are associated with human habitats. We have seen two common species in cockroaches. American cockroach prefers warm and humid environments, usually with temperatures in excess of 82-degree F. German cockroach is the most common indoor species, especially in multiple family dwellings. They prefer food preparation areas, kitchens, & bathrooms because they favor warm, humid areas that are close to food and water.
Cockroach are omnivorous scavengers and will consume any organic food source available to them. Cockroach eat is what is available to them. When left with no water, cockroach can live days to a week.
A gnawing mammal of an order that includes rats, mice & their relatives, distinguished by strong constantly growing incisors and no canine teeth. They constitute the largest order of mammals. There are majorly three types of rodents Bandicoot, Roof Rat & House Mouse.
Each category type of the rodent has different habitat of breed Bandicoots usually nests in basements & lower portions of buildings. Burrow in soil extensively. Active primarily at night, fair climber, good swimmer. Roof Rat usually enters and nests in upper portion of building. Many nest outside in trees. Burrows very less. Excellent climber and active at night. House Mouse may nest in any portion of a building near food. Has average range of 50 ft from nest Active mostly at night.
The Housefly, Musca domestica, is a fly of the suborder cyclorrhapa.
They are the pests because of below reasons:
House flies are not the neatest of the insects. They visit such as dumps, sewers & garbage heaps. They feed on fecal matter, discharges from wounds and sores, sputum, and all sorts of moist decaying matter such as spoiled fish, eggs & meat.