Toxicity of cinnamon oil and its active ingredient against the carmine spider mite, Tetranychus cinnabarinus (Acari : Tetranychidae)‎

الملخص EN

The carmine spider mite, Tetranychus cinnabarinus (Boisduval) (Acari: Tetranychidae) is a worldwide polyphagous agricultural pest and it is an economically important pest that infests greenhouse and field crops.

The toxicity of cinnamon oil (Cinnamomum zeylanicum Blume) and its active ingredient cinnamaldehyde were studied under laboratory conditions against adult female of carmine spider mite, T.

cinnabarinus.

LC50 of each treatment was established and the obtained results revealed that the active ingredient cinnamaldehyde was more effective than the cinnamon oil.

LC50 was 2521.54 and 4516.61 ppm for cinnamaldehyde and cinnamon oil, respectively, for T.

cinnabarinus.

However, the LC90 was 27072.28 and 48576.69 ppm for cinnamaldehyde and cinnamon oil, respectively.

It is concluded that cinnamon oil as a promising save control agent for controlling the carmine spider mite, T.

cinnabarinus.