Orius spp. (Anthocoridae family) are valuable natural enemies in cotton and abundant throughout the season. There are two species in Arizona – Orius tristicolor and O. insidiosus, referred to as minute (pronounced my – noot’) pirate bugs (MPB). Adult MPBs are tiny from 1/12-1/5 inch long. The insect stands out in the bottom of a sweep net with its black forewings with white patches which from a distance forms an ‘X’ shape. The body is somewhat flattened and oval ...

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