The Australian cockroach is an omnivore that scavenges for food. It is a common pest in homes and can transmit disease by contaminating food. A number of pathogenic organisms have been associated with cockroaches. Ingested bacteria can survive in the cockroach's digestive system, sometimes for months or even years, and are passed in its droppings. Cockroaches will vomit and defecate on food and it is thought that disease may be transmitted to humans when humans eat food contaminated by this species. If the population becomes dense, it can produce a distinct odor. Food and utensils can be contaminated with droppings, cast skins, empty egg cases, and vomit marks.
Over 4,000 species exist worldwide, with one species or another either creeping around in your basement, flying right at you, dropping on you from trees and ceilings in the dark of night or others scattering in throngs of thousands, when caught invading your kitchen, cockroaches are one of our most terrifying pests.
With Halloween just around the corner, its time for larger-than-life creepy, crawly creatures skittering across lawns, lurking in dark alleyways and dropping out of nowhere to frighten their hapless victims.