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Southern green shield bug

Southern green shield bug

Nezara viridula

A species of Nezara, Also known as Southern green stink bug, A stink bug

The southern green shield bug larvae molt five times before they reach their mature size. They are named for their unpleasant scent and are considered pests due to their preference for feeding on leguminous plants such as soybeans. Wasps and flies that parasitize the southern green shield bug are sometimes used as biological controls for its population.

General Info About Southern green shield bug
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Attributes of Southern green shield bug
Colors
Black
Green
Yellow
Red
Habitat
short weedy plant; building and house
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
The Southern green shield bug is non-toxic and generally doesn't pose a risk to human health. No need for excessive worry.
Borer
Not reported
Pollinator
Not reported
Pest-Eating Predatory
Not reported
Phytophagous
The Southern green shield bug feeds on plants, usually without causing significant harm. However, it's important to take the situation seriously if their numbers begin to increase significantly.
Predatory
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Piercing-sucking mouthparts
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Appearance of Southern green shield bug
The adult males can reach a body length (from front to elytral apex) of about 1.2 cm, while females are bigger, reaching a size of about 1.3 cm. The body is bright green and shield-shaped and the eyes are usually reddish, but they may also be black. They differ from the similar green stink bug (Acrosternum hilare) by the shape of their scent gland openings, which are short and wide in Nezara viridula, and narrow and long in the green stink bug. The eggs are barrel-shaped, with an opening on the top.
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How to Identify Southern green shield bug?

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Life Cycle of Southern green shield bug
Egg The southern green shield bug begins life as an egg, usually oval-shaped and laid in clusters. The color can vary, often reflecting the environment to aid in camouflage. At this stage, the southern green shield bug is immobile and undergoes development internally.
Nymph After hatching, the nymph stage has a similar appearance to the adult southern green shield bug but is smaller, lacks wings, and is typically more vibrant in color. Nymphs will molt several times, increasing in size and gradually developing wing pads.
Adult Emerging from the last nymphal stage, the adult southern green shield bug's development includes fully formed wings and reproductive organs. The color may become more subdued, and the body is fully hardened. The insect is now mobile, focusing on mating and laying eggs.
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Adult Size of Southern green shield bug
1.2 - 1.7 cm
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Predators of Southern green shield bug Larvae
Frogs and toads, birds, jumping spiders, mantises, geckos, hoverflies, dragonflies
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Predators of Adult Southern green shield bug
Birds, rodents, spiders, predatory beetles, mantises, monkeys, wasps
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Interesting Facts About Southern green shield bug
Southern green shield bug is capable of releasing a pungent odor from glands located on their abdomen to deter predators.
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Scientific Classification of Southern green shield bug
Tips for Finding Southern green shield bug
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Youth Habitat of Southern green shield bug
Agricultural and Cultivated Areas, Forests and Woodlands, Grasslands and Prairies
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Habitat Preferences of Southern green shield bug Through Different Life Stages
To observe the different stages of southern green shield bug’s development, one would explore various habitats. Eggs, usually found in clusters, are laid on the underside of leaves, making a thorough inspection of leafy vegetation necessary. Nymphs, resembling miniature adults but lacking fully developed wings, are often seen near the eggs' location, feeding on the same plants. Adult southern green shield bug, fully winged and mobile, have a broader range to explore, frequenting fields, gardens, and orchards where they feed on a wide variety of plants. Tracking these growth stages effectively involves careful examination of host vegetation during the appropriate season, using a combination of visual checks and gentle beating or shaking of plants to dislodge and detect the more cryptic life stages.
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When is the Best Time to Observe Southern green shield bug
The most suitable time to find southern green shield bug is during the warmer months, typically from spring through early fall.
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What is the Best Weather to Observe Southern green shield bug
Dry and warm days are usually the best conditions to find southern green shield bug, as they are less active during cold or rainy weather.
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How and Where Can You Find Southern green shield bug at Different Life Stages
Egg Eggs of southern green shield bug are usually found on the underside of leaves. Inspecting plants that southern green shield bug are known to feed on can lead to the discovery of their barrel-shaped egg clusters.
Nymph Southern green shield bug nymphs are smaller, more colorful, and often found on host plants. Look for them on the underside of leaves or stems of plants they feed on during the day.
Adult Adult southern green shield bug can be found on various plants they feed on. Searching for them involves inspecting both the leaves and stems. At night, a light trap could also be used to attract adult southern green shield bug.
Are Southern green shield bug harmful?
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Harmful Effects of Southern green shield bug
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Nuisance Pests

Southern green shield bug infests homes, emitting an unpleasant odor when disturbed. This pest, in adult and nymph stages, can cause mild to severe annoyance by damaging textiles and crops, impacting daily life and agricultural productivity.

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Agricultural Pests

Adults and nymphs of southern green shield bug feed on various crops by piercing and sucking plant fluids, leading to leaf damage, fruit deformation, and seed loss. A small number results in milder symptoms, such as discolored spots; a larger population can cause severe destruction, impacting crop yields and quality. This can have a significant economic impact on agriculture and food supply.

More Effects of Southern green shield bug

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