Effect of direct application of five bio- and conventional insecticides Dipel2x, Radiant, Proclaim, Aphox and
Coragen) at three different concentrations on the biological attributes of immature (1st, 3rd and 5th nymphal instars) and
adult stages of Orius albidipennis (Reuter) (Hemiptera: Anthocoridae) were evaluated. Procalim, Aphox and Coragen
had harmful effect and caused significant reduction in the tested stages of O. albidipennisas compared to Dipel 2x and
Radiant insecticides, irrespective of tested concentrations. Also, the direct impact of those insecticides on immature
stages was higher than that recorded for adult stage. Insecticide-treated immature stages of O. albidipennis had negative
impact on developmental periods. However, the longevity, fecundity rates and hatchability percentages of obtained
adults from insecticide-treated immature and insecticide- treated adult stages were differed from those of untreated
(control).