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.
Highlights
Tetranychus urticae Koch is a notorious pest of economically important agricultural crops as well as ornamental plants (Navajas, 1998)
The present work was aimed to evaluate the comparison between nano chitosan and the specific acaricide, Fabcomic, on T. urticae
Toxicity Test: The toxicity of nano chitosan and the Fabcomic acaricide were tested against T. urticae
Summary
Tetranychus urticae Koch is a notorious pest of economically important agricultural crops as well as ornamental plants (Navajas, 1998). It has been reported to attack about 1200 species of plants (Zhang, 2003), of which more than 150 are economically important (Jeppson et al, 1975, Xie et al, 2006). These negative effects have resulted in raising interest in natural materials which are assumed to be safer than females synthetic pesticides (Yanar et al, 2011). The present work was aimed to evaluate the comparison between nano chitosan and the specific acaricide, Fabcomic, on T. urticae.
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