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Pest Library: Stink Bug

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Stink Bugs are sometimes referred to as shield bugs, as they are shield-like in shape. They have tiny glands on the thorax that can emit an odorous liquid when defending itself from predators.

Adults are about 1/2 inch in length and brownish in color. The eggs are elliptical, approximately 1.5mm and yellowish in color. The female will attach her eggs to the underside of leaves in clusters of 20 to 30 eggs.

In the northeast, there are probably one generation per year depending on temperatures. Warm springs and summers may allow 2 to 3 generations annually. Adults will look for an over-wintering site (such as homes) starting in September and lasting until mid-October.

Stink bugs will attack various plants such as, apple, figs, citrus fruits, peaches, etc. Also, stink bugs will be found on various ornamental plants.

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