17 H. Alahyane R. Ait Babahmad H. Aboussaid Y. Atibi A. Aimrane K. Oufdou S. El Messoussi Journal of Animal and Plant Sciences JAPS 20202020/06/25 30 5 1163-1171 1018-7081 https://doi.org/10.36899/JAPS.2020.5.0133 <p>Laboratory bioassays were conducted to evaluate the acaricidal activities of the ethanolic extract of&nbsp;<em>Jatropha curcas&nbsp;</em>L. leaves (Family: Euphorbiaceae) against adult females of oriental red mite,&nbsp;<em>Eutetranychus orientalis</em>. The leaf dip technique and direct application were adopted to assess the toxicity, fertility, repellency and ovicidal effects of different doses (0.1&ndash;10 mg/mL) of the ethanolic extracts of&nbsp;<em>J. curcas</em> L. leaves. We found that this extract increased mortality and reduced fecundity in a dose-dependent manner. Leaf discs treated with increasing doses (0.05, 0.5, 1 and 5 mg/mL) of the extract also showed a high percentage of repellency (94.12%) while treated eggs with these increasing doses showed a remarkable increase in the eggs&rsquo; mortality 7 days after treatment, i.e., 72.00% at 5 mg/mL. We confirmed the presence of secondary metabolites and showed an abundance of phenolic compounds, flavonoids, flavonols and tannins with different concentrations.</p> Jatropha curcas L. extract, Eutetranychus orientalis, repellency, ovicidal effect, secondary metabolites Pakistan Agricultural Scientists Forum https://thejaps.org.pk/AbstractView.aspx?mid=AG-18-0355