EFFECT OF SOME ACARICIDES ON THE BIOLOGY OF STETHORUS GILVIFRONS MULSANT (COLEOPTERA: COCCINELLIDAE) AS PREDATOR OF TETRANYCHUS URTICAE KOCH

Abstract

: The present work were determined to evaluate the latent effect of three acaricides Ortus Super ® 5%EC, Vertimec ® 1.8% EC and Delmite ® 7.5% SC on the biological aspects of the coccinellid predator, Stethorus gilvifrons Mulsant as predator of the tow spotted mite, Tetranychus urticae Koch at laboratory conditions (30±1 ◦ C and 70±5% RH.). All experimented acaricides were affected on the biology of S. gilvifrons . Vertimec ® was the most effective on T. urticae and associated predator, S. gilvifrons than Ortus Super ® and Delmite ® . Using Delmite ® proved to be the safest amongst other acaricides on this predator.