Fumigant toxicity of volatile natural products from Korean spices and medicinal plants towards the rice weevil,Sitophilus oryzae (L)

2001 ◽  
Vol 57 (6) ◽  
pp. 548-553 ◽  
Author(s):  
Sung-Eun Lee ◽  
Byoung-Ho Lee ◽  
Won-Sik Choi ◽  
Byeoung-Soo Park ◽  
Jeong-Gyu Kim ◽  
...  
Keyword(s):  
Natural Products ◽  
Medicinal Plants ◽  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Fumigant Toxicity

Fumigant toxicity of essential oils and their constituent compounds towards the rice weevil, Sitophilus oryzae (L.)

2001 ◽  
Vol 20 (4) ◽  
pp. 317-320 ◽  
Author(s):  
Byung-Ho Lee ◽  
Won-Sik Choi ◽  
Sung-Eun Lee ◽  
Byeoung-Soo Park
Keyword(s):  
Essential Oils ◽  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Fumigant Toxicity

scholarly journals Fumigant Toxicity of Lamiaceae Plant Essential Oils and Blends of Their Constituents against Adult Rice Weevil Sitophilus oryzae

Molecules ◽  
2016 ◽  
Vol 21 (3) ◽  
pp. 361 ◽  
Author(s):  
Sung-Woong Kim ◽  
Hyo-Rim Lee ◽  
Myeong-Jin Jang ◽  
Chan-Sik Jung ◽  
Il-Kwon Park
Keyword(s):  
Essential Oils ◽  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Fumigant Toxicity ◽  
Plant Essential Oils

scholarly journals Repellent Activity of Waste Extract from Two Local Medicinal Plant Against Rice Weevil (Sitophilus oryzae)

2019 ◽  
Vol 11 (1) ◽  
pp. 62-67
Author(s):  
Priyantini Widiyaningrum ◽  
Devy Candrawati ◽  
Dyah Rini Indriyanti ◽  
Bambang Priyono
Keyword(s):  
Medicinal Plants ◽  
Waste Product ◽  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Repellent Effect ◽  
Insect Repellents ◽  
Preference Index ◽  
Ethanolic Extracts ◽  
Waste Extract ◽  
Better Than

In order to find natural and inexpensive bioinsecticides, the active compound of waste extract from two medicinal plants were analyzed.  Ethanolic extracts of Amomum cardamomum and Zingiber zerumbet were evaluated under laboratory conditions for their repellency against rice weevil (Sitophilus oryzae, L.). Four extracts concentration were tested in this research, i.e: 25, 50, 75 and 100%.  Efficacy was measured based on the response of rice weevil in preference tests using Y Olfactometer Tube, then the results were converted into the Percentage Repellency (PR) and Preference Index (PI). The PR data were analyzed using ANOVA, whereas PI values were analyzed descriptively. The result showed that the PR were significantly (LSD test; α> 0.05) and revealed that waste extracts repel the rice weevil at 100% solution.  The highest PR was found at 100% solution in both extracts, however, statistically the repellency of A. cardamomum waste extract was higher than Z. zerumbet’s. Likewise, the PI of both extracts showed negative value at 75 and 100% concentration. This study concluded that extract of A. cardamomum and Z. zerumbet wastes have repellent effect against rice weevil and A. cardamomum repellency is better than Z. zerumbet. The findings of this study can provide a useful information for development of a rice weevil repellent extracted from waste product of medicinal plants that is more economically and environmentally friendly than synthetic insect repellents.

scholarly journals Evaluation of Ethyl Acetate Extract of Some Botanicals against Rice Weevil Sitophilus oryzae L. (Coleoptera: Curculionidae) in Stored Maize

2021 ◽  
Vol 108 (june) ◽  
pp. 1-6
Author(s):  
Anandhabhairavi N ◽  
◽  
Shanthi M ◽  
Chinniah C ◽  
Geetha R ◽  
...  
Keyword(s):  
Ethyl Acetate ◽  
Ethyl Acetate Extract ◽  
Curcuma Longa ◽  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Ocimum Sanctum ◽  
Fumigant Toxicity ◽  
Vitex Negundo ◽  
Mentha Spicata ◽  
Class Iv

In the present study, botanicals (11 nos.) were extracted using ethyl acetate solvent (mid-polar) and evaluated for their fumigant toxicity and repellent activity at 5% concentration against rice weevil, Sitophilus oryzae L. in comparison with Acorus calamus.The results revealed that all the botanicals were effective against Sitophilus oryzae compared to untreated control. Mentha spicata 5% ethyl acetate extract exhibited 83.33% fumigant toxicity after 72 hours of treatment with maximum repellency rate of 76.11%. Ocimum sanctum displayed 80.00% fumigant toxicity with the repellency rate of 76.11% and grouped under Class IV. Vitex negundo 5% treatment caused 83.33% fumigant toxicity, and it was statistically on par with the M. spicata and the repellency rate was 72.78 against S. oryzae. Curcuma longa caused effective repellency rate of 75.56% and was grouped under Class IV. Hence, it is concluded that 5% ethyl acetate extract of M. spicata, V. negundo and O.sanctum were toxic against S. oryzae in stored maize.

scholarly journals Insecticidal effects of two medicinal plants Polygonum hydropiper L. and Abrus precatorius L. leaves against the rice weevil Sitophilus oryzae L. (Coleoptera: Curculionidae)

2020 ◽  
Vol 5 (2) ◽  
pp. 107-114
Author(s):  
SC Bhattacharjee ◽  
MM Matin ◽  
M Nasiruddin
Keyword(s):  
Medicinal Plants ◽  
Petroleum Ether ◽  
Plant Species ◽  
Leaf Extract ◽  
Sitophilus Oryzae ◽  
Rice Weevil ◽  
Leaf Extracts ◽  
Polygonum Hydropiper ◽  
Abrus Precatorius ◽  
Ether Solvents

During the study, the leaves of two medicinal plants, Polygonum hydropiper and Abrus precatorius were extracted with water, ethanol, methanol and petroleum ether solvents and tested against the rice weevil S. oryzae L. for insecticidal properties. Response varied with plant species. The mortality of adults increased with increasing dose concentrations from 1000 ppm to 5000 ppm each solution, with an exposure time of 72 hours. LC50 values calculated were found to be 15091.436 ppm with water, 5051.534 ppm with ethanol, 5111.063 ppm with methanol and 4305.348 ppm with petroleum ether extracts of P. hydropiper and 9687.292 ppm with water, 6263.849 ppm with ethanol, 4682.683 ppm with methanol and 3222.984 ppm with petroleum ether extracts of Abrus precatorius leaves corresponding their concentrations of the leaf extract solutions at 1000ppm, 2000 ppm, 3000 ppm, 4000 ppm and 5000 ppm respectively. The results of the study showed that methanol and petroleum ether extrcts of P. hydropiper and ethanol, methanol and petroleum ether extracts of A. precatorius showed good toxicity. It appeared that the leaf extracts had some insecticidal activities against S. oryzae adult. J. Biodivers. Conserv. Bioresour. Manag. 2019, 5(2): 107-114

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