Comparison between the Effect of Nano Chitosan and Fabcomic Insecticide against Tetranychus urticae (Acari: Tetranychidae)

Abstract

Toxicity of nano chitosan and fabcomic acaricide were studied under laboratory conditions against adults of spider mite, Tetranychus urticae Koch. Also, LC50 and LC90 of each treatment were determined. The obtained results revealed that fabcomic acaricide was more effective in controlling T. urticae than nano chitosan but it caused pollution for all living organisms as well as to the environment while nano chitosan was more save for both, humans and plants. LC50 for fabcomic acaricide and nano chitosan was 0.1 and 801.04 ppm, respectively. However, LC90 was 1.66 and 5746.09ppm for fabcomic acaricide and nano chitosan, respectively.