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why is a stink bug called a stink bug

Scientists describe stink bugs in several different ways. Some scientists call them Бlarge, oval-shaped insects. Б Other scientists call them Бshield-shaped insects. Б
Adult stink bugs can reach almost 2 cm in length. They are almost as wide as they are long. Their legs extend from the sides, so this makes the adult bugs look even larger than they really are. Immature stink bugs, called nymphs, are very tiny when they hatch from their eggs. As they develop, the nymphs molt or shed their skin five times. Each time it molts, the nymph becomes larger. By the last molt, the nymphs are almost as large as adult stink bugs. Adult stink bugs are good fliers and fold their wings on top of their body when they land. Nymphs do not have fully developed wings. The wings appear when the nymph becomes an adult. Fully developed wings are a way to identify adult stink bugs. Depending on the species, adult stink bugs might be green, brown or grayish in color.


The nymphs are often a different color from the adults. In some cases, the nymphs can change colors as they develop. As its name suggests, the adult southern green stink bug is a green insect. The scientific name is Nezara viridula (L). Adults normally measure 12 to 13 mmб in length. Newly hatched nymphs are black. They become green as they develop into adults. Many species of stink bugs are brown-colored insects. The brown marmorated stink bug ( Halyomorpha halys ) is a brownish stink bug. This stink bug has lighter bands on the antennae and darker bands on the wings. Nymphs of the brown marmorated stink bug are yellow and red. As they grow, the yellow fades to white. They have bright red eyes during the nymph stage of their life cycle. Even though stink bugs are garden pests, they often enter homes to find a place to spend the winter. Homeowners are often upset to find these large insects on the walls or windows of their home.


Several kinds of stink bugs exist naturally in the U. S. but a new species arrived recently, the Brown Marmorated Stink Bug (BMSB). It has become a problem for farmers and homeowners alike. The BMSB came from Asia in the 1990s and, since then, has hitched rides to many states. The adults emerge in spring and feed on plants, causing damage and spreading diseases to fruit, vegetable and other plants. Offspring produced during the summer often seek shelter as temperatures drop in the fall, causing severe infestations in homes and businesses. Stink bugs do not do any structural damage to homes and they do not sting or bite. Stink bugs release foul smelling chemicals to avoid predators. They also give off other chemicals to attract other stink bugs. When a BMSB finds a suitable winter shelter, it secrets a chemical odor that attracts other stink bugs. Killing a stink bug does not attract more stink bugs.


To keep your home from becoming attractive to stink bugs, seal up windows and foundations to prevent their entry and quickly removing any stink bugs that find their way in by hand or with a vacuum. Stink bugs begin to emerge in spring and early summer. You can use a simple to capture and kill many of them indoors. Using pesticides inside the home to control stink bugs is often ineffective. Some pesticides have been effective when used as outdoor perimeter treatments for homes when applied at the correct time of year. If you need help identifying or controlling stink bugs, see the resources below or contact your local for assistance. Many extension agents are monitoring the spread of invasive stink bugs and are willing to provide help identifying local species. If you have questions about this, or any pesticide-related topic, please call NPIC at 1-800-858-7378 (8:00am - 12:00pm PST), or email us at.

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