Seasonal development
and life cycle—Stink bugs
Drum-shaped eggs with circular "lids" are laid in clusters on foliage. The nymphs, nearly round
and often brightly colored, remain close together at first but scatter as they grow. They pass through
four or five molts, gradually developing wings and adult coloration. Adults overwinter on the ground under
leaves and become active in March or April. Stink bug infestations originate when adults fly in from weedy
areas, often from the edges of sloughs and creeks where blackberries grow. Damage is often limited to
the edges of fields near these areas, but in years with a lot of spring rain and late weed growth, stink
bugs may be numerous and damage more widespread.
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stink bug eggs
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Nymphs
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Adult
Nezara bug
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stink bug nymph
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