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(NewsUSA) - Insects originating in foreign countries, commonly called invasive species, are a major concern in the U.S. because they often don't have natural predators, allowing their populations to grow quickly. The National Pest Management Association (NPMA) reminds homeowners that several of these invasive species can be a threat or a nuisance to families or properties.
According to the NPMA, here are the five most common invasive species that homeowners encounter:
1. Brown marmorated stink bugs arrived in Pennsylvania in 1996 from Asia. The stink bug earned its name from its tendency to release an odor when disturbed or when crushed. While quite harmful to the agricultural industry, stink bugs do not pose a threat to people's health, but their tendency to invade homes in high numbers can be a nuisance.
2. Red imported fire ants (also known as RIFAs) are an invasive species from Brazil that are found throughout the South and in parts of California and other western states. RIFAs will attack humans who disturb or threaten their nests, inflicting painful bites and stings. Those allergic to insect stings will react more severely.
3. Formosan termites were brought into the U.S. from China in military cargo shipments after World War II. This termite species is one of the most destructive, forming huge underground colonies, and is more aggressive in nature, consuming more wood, flooring and wallpaper at much faster rates than other species. Formosan termites are difficult to control once they infest an area and can cause severe structural damage to a home in as little as six months.
4. Rasberry crazy ants are spreading rapidly throughout the Southwest. First found in Texas in 2002, its common name comes from the workers' habit of running in an erratic, jerky manner when searching for food. The ants can bite humans and feed on plants, other insects and even small animals.
5. Conehead termites, an invasive species native to the Caribbean, were first introduced to the U.S. in 2001 and are currently found in Florida. Unlike most termites, the conehead termite does not rely on underground tunneling to travel. Instead, they forage on the ground like ants, allowing them to spread rapidly. As an extremely aggressive species, they are known to cause widespread property damage in a short amount of time.
For more information, visit www.pestworld.org.