• G. Sahaya Babitha
• P. Beautlin Sheribha

In the present study, powder prepared from the two indigenous botanical plants in Tamilnadu, India (Acalypha indica Linn. and Phyllanthus amarus) was tested for their efficacy on mortality of Sitophilus oryzae L. These plant materials showed the presence of various phytochemicals. The results revealed that all of the tested materials with some variations had lethal effects against the pest as compared with control. After 7 days of treatment of S. oryzae with 1.0 g of A. indica, 22.3 ± 1.67% mortality was obtained. However, the mortality rate was increased as 83.3 ± 1.41% after 28 days. At 2 g of A. indica treatment, mortality rate was increased as 92.1 ± 0.12% after four weeks. After two weeks, 3 g A. indica killed 94.6±1.41% S. oryzae. After 7 days of treatment of S. oryzae with 1.0 g of P. amarus, 20.3 ± 1.67% mortality was obtained. However, the mortality rate was increased as 86.4 ± 1.57% after 28 days. At 2 g of A. indica treatment, mortality rate was increased as 93.1 ± 0.12% after four weeks. After two weeks, 3 g A. indica killed 95.6±0.68% S. oryzae and mortality was 100±0.42% after 28 days of treatment

Rice grains, Rice weevil, Plants, Phytochemicals, Pest control.

"Effects of two botanical plant powder on the control of rice weevil, Sitophilus oryzae L. in stored rice grains", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.239-244, June 2019, Available :http://www.jetir.org/papers/JETIR1906K24.pdf

"Effects of two botanical plant powder on the control of rice weevil, Sitophilus oryzae L. in stored rice grains", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp239-244, June 2019, Available at : http://www.jetir.org/papers/JETIR1906K24.pdf