Toxic effect of cinnamon, castor plant oils and their combination on Tetranychus urticae (Acari : Tetranychidae)‎

الملخص EN

The biological effects of cinnamon oil, castor oil and their compination were studied under laboratory conditions against adult female of the two spotted spider mite, Tetranychus urticae Koch.

(Acari: Tetranychidae).

Also, LC50 of each treatment was established and the obtained results revealed that the mixture of the two oils and cinnamon oil were more effective than the castoroil.

LC50 was 1100.92, 2928.97 and 7856.59 ppm for the mixture of the two oils, cinnamon oiland castor oil, respectively, for T.

urticae.

The study indicated that, the mixture of cinnamon oil and castor oil was more effective than each one alone on T.

urticae.