@article{Pal_Tiwari_Regmi_Ali_2022, title={Efficacy of Plant- Powders Against Rice Weevil, Sitophilus oryzae (Linnaeus) (Curculionidae: Coleoptera) at Laboratory Condition}, volume={19}, url={https://www.banglajol.info/index.php/SJA/article/view/57691}, DOI={10.3329/sja.v19i2.57691}, abstractNote={<p>An experiment was conducted to evaluate the efficacy of plant-based repellent powders for <em>S. oryzae </em>at the National Rice Research Program, Hardinath, Dhanusha, Nepal in 2020 at laboratory condition. Two hundred gram of paddy grains of cv. Sambha Mansuli Sub-1 was kept in each plastic jar in the experiment. Ten pairs of newly emerged adult rice weevil, <em>S. oryzae </em>of uniform age obtained from stock culture were released in each plastic jar. Laboratory bioassay contained <em>Acorus calamus </em>(rhizome powder) @10 gm/kg, <em>Piper nigrum </em>(seed powder) @10 gm/kg, <em>Curcuma longa </em>(rhizome powder) @10 gm/kg, <em>Azadirachta indica </em>(kernel powder) @ 10gm/kg, <em>Zingiber officinale </em>(rhizome powder) @10 gm/kg, and Malathion powder 5% dust @2 gm/kg were used for the rice weevil. <em>Acorus calamus </em>was the most effective botanical powder followed by <em>P. nigrum </em>to reduce grain damage percent on number basis (1.15%) and on weight basis (1.22%), weight loss percent (0.84%) & weevil population count (1.54). The efficacy ranks of the botanicals were: <em>A. calamus>P. nigrum>A. indica>Z. officinale>C. longa. </em>Thus, use of <em>A. calamus </em>powder is recommended to manage rice weevil in the storehouse condition.</p> <p><em>SAARC J. Agric., 19(2): 331-338 (2021</em><em>)   </em>            </p>}, number={2}, journal={SAARC Journal of Agriculture}, author={Pal, MK and Tiwari, S and Regmi, R and Ali, FM}, year={2022}, month={Mar.}, pages={331–338} }