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Brown marmorated stink bug

Brown marmorated stink bug

Halyomorpha halys

A species of Halyomorpha

As evidenced by its name, brown marmorated stink bug (Halyomorpha halys) is most recognizable for its ability to exude a nasty, foul-smelling odor if disturbed. Capable of subsisting on over one hundred species of plant, it has become an enormous pest for many farmers in the U.S., costing over $30 million annually in apple crop losses alone. It often invades homes in autumn, as soon as the weather begins to chill.

General Info About Brown marmorated stink bug
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Attributes of Brown marmorated stink bug
Colors
Brown
Bronze
Habitat
cultivated; agricultural land; managed forest; plantation; orchard; roadside; building; natural forest; tree fruit; vegetable; ornamental plant; legume
Adult Food Sources
Apples, peaches, pears, figs, mulberries, soybeans, and corn
Larva Food Source
Leaves, fruits, pods of legumes, ornamental plants, and multiple agricultural crops
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
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Distribution Area of Brown marmorated stink bug
Canada, United States
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Appearance of Brown marmorated stink bug
Easily confused with Brochymena and Euschistus, the best identification for adults is the white band on the antennae. It is similar in appearance to other native species of shield bug, including Acrosternum, Euschistus, and Podisus, except that several of the abdominal segments protrude from beneath the wings and are alternatively banded with black and white (visible along the edge of the bug even when wings are folded) and a white stripe or band on the next to last (fourth) antennal segment. The adult rice stink bug (Oebalus pugnax) is distinguishable from the brown marmorated stink bug by noting the straw color, the smaller size, and the elongated shape of the rice stink bug.
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How to Identify Brown marmorated stink bug?

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Life Cycle of Brown marmorated stink bug
Egg The eggs of the brown marmorated stink bug are laid in clusters, typically on the underside of host leaves. They are barrel-shaped and can vary in color, often matching the host plant to evade predators.
Nymph Upon hatching, the brown marmorated stink bug nymphs are wingless and smaller than adults, but resemble the adult form. They go through multiple instars, increasing in size and developing wing pads progressively.
Adult Emerging as adults, the brown marmorated stink bug maintains the general shape but reaches full size with fully developed wings and reproductive organs. Coloration can be varied, often cryptic, assisting in concealing the creature from predators.
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Predators of Brown marmorated stink bug Larvae
Amphibians like frogs and toads, avian predators such as birds, insects like spiders, mantises, and some types of beetles, rodents
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Scientific Classification of Brown marmorated stink bug
Tips for Finding Brown marmorated stink bug
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Youth Habitat of Brown marmorated stink bug
Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas, Fruit Orchards
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Adult Habitat of Brown marmorated stink bug
Forests and Woodlands, Urban and Suburban Areas, Agricultural and Cultivated Areas, Fruit Orchards
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How Can You Attract Brown marmorated stink bug
To attract brown marmorated stink bug, using light traps or pheromone traps can be effective, as brown marmorated stink bug are drawn to these stimuli. Fruits like apples or pears can also be used as bait since brown marmorated stink bug are often found feeding on a wide variety of fruits and vegetables.
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Habitat Preferences of Brown marmorated stink bug Through Different Life Stages
The eggs of brown marmorated stink bug are typically found on the underside of leaves, ensuring protection and access to their initial food source upon hatching. Nymphs tend to stay close to this location, foraging on the plant where they were born, while undergoing several molts as they develop. Adults have wings and are good fliers, making them more widespread; they often inhabit various plants, including crops and ornamental flora, seeking out food and mates. In search of the different growth stages, one would carefully inspect leaf undersides for eggs in spring, observe the host plants for the presence of developing nymphs, and look around a wider range of vegetative environments to spot the mobile adults, especially during the warmer months.
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How and Where Can You Find Brown marmorated stink bug at Different Life Stages
Egg Brown marmorated stink bug eggs are often laid in clusters on the undersides of leaves. Examine the leaves of host plants closely to find these barrel-shaped egg masses.
Nymph Nymphs of brown marmorated stink bug go through five instars, each slightly larger than the last. These can be found on the host plants, often on the underside of leaves or stems. Look for them by carefully inspecting the foliage of known host plants.
Adult Adult brown marmorated stink bug can be found on diverse plants as they are highly polyphagous. They may be found on the foliage, stems, or fruit of plants. Light trapping at night or visual search during the day by walking through habitat and looking on the plants they might be feeding or resting on is a method to locate adult brown marmorated stink bug.
Are Brown marmorated stink bug harmful?
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Harmful Effects of Brown marmorated stink bug
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Nuisance Pests

The presence of brown marmorated stink bug in homes can range from a mild annoyance to a severe inconvenience as they search for overwintering sites. This pest's secretions may cause a foul odor and potential staining, creating discomfort and unsanitary conditions, especially when they gather in large numbers.

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Agricultural Pests

The presence of brown marmorated stink bug causes damage to a variety of host plants by sucking plant fluids, resulting in mild to severe impacts. While a small number may create discolored spots on fruits and leaves, a large infestation can lead to significant fruit deformities, reduced yields, and increased vulnerability to diseases, affecting economic returns and potentially human food supplies.

More Effects of Brown marmorated stink bug

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