![]() ![]() The nymphs gradually become larger and inhabit the same places as the adults. The nymphs resemble adults except that they are smaller and lack wings. ![]() Several nymphs emerge from each egg case (up to 40 with the German cockroach, 15-20 with other varieties). The female cockroach produces small, brown, bean-shaped egg cases that are deposited in out-of-the-way places. There are three life stages: egg, nymph, and adult. Description and HabitsĬockroaches are flattened, brownish, fast-running insects, with long, slender antennae. This publication will help you eliminate your cockroach problem and reduce the risk of future infestation. ![]() Consequently, while roaches usually thrive where sanitation is poor, even clean homes can become infested. In multi-unit dwellings such as apartments, cockroaches also travel between units through common walls, ceilings, etc. Species such as the American, Oriental, and wood cockroach also gain entry through gaps around windows, doors, vents, and utility openings, and in firewood. The ubiquitous German cockroach is often introduced in infested grocery bags, beverage cartons, or furniture. 1: Cockroaches contaminate food and can transmit harmful pathogens.Ĭockroaches enter buildings in a variety of ways. Asthma triggered by cockroaches is especially common among children living in densely populated housing conditions where infestations are often severe.įig. Cockroach-produced allergens may cause congestion, sneezing and watery eyes, as well as life-threatening bronchial inflammation (asthma) characterized by recurrent cough, wheezing, and difficulty breathing. Many people are also allergic to cockroach excrement and their shed skins. They may contaminate food, kitchen utensils, and other household items, and they leave an unpleasant odor.īecause cockroaches move freely from filth to food, they can transfer pathogenic microbes that cause food poisoning and other illnesses. Cockroaches are repulsive and embarrassing to most people simply by their presence. They are especially troublesome where food is prepared and sanitation is lacking. Potter, Extension EntomologistĬockroaches are among the most common pests infesting homes and apartments. ENTFACT-614: Cockroach Elimination in Homes and Apartmentsĭownload PDF | Video Version | En Español by Michael F. ![]()
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