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Orius laevigatus

Orius laevigatus is a predatory bug, used in biological controlling of thrips. This predatory bug has an oval shape, is black coloured and has wings longer than his own body. Several Orius species are used in the biological controlling, like Orius insidiosus (1.6 – 1.9 mm in length), Orius majusculus (2.6 – 3 mm in length) and Orius laevigatus (1.4 0 2.4 mm in length). Nymphs are small, teardrop-shaped, wingless insects. Young nymphs are yellow as the older once are yellow with brown spots. 

Life cycle and relative effectiveness

An female adult can produce 125 eggs during her life time. Both, nymph and adult stage, feed one thrips. They also consume spider mites, aphids and several small caterpillars. Pollen is also accepted as a food source. Due to this, preventive application is possible. Orius holds its prey with her front legs and sucks them dry with her sharp snout. Orius consumes more than 30 thrips per day. 

Storage and handling 

Orius laevigatus supplied in bottles (250 ml.), containing 500 or 1.000 predatory bugs. Keep the bottles horizontally, in darkness, at a temperature between 10°C – 15°C. Maximum storage time of two days. 

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