The eggs hatch in 4-5 days and grow through 5 stages.
All stages move quickly and adults are good flyers.
They will move efficiently throughout the greenhouse to locate pests. Orius kills its prey by piercing them with its mouthparts, and sucking out the body fluids. If prey is abundant, Orius kills more thrips than it needs to survive. The generation time is affected by temperature and food sources. Cooler temperatures slow development, and the presence of pollen appears to have a favorabe effect on its development.