Insecticidal Properties of some Plant Extracts against Granary Weevil, Sitophilus granarius L. | ||||
| Journal of Applied Plant Protection | ||||
| Article 2, Volume 2, Issue 1, December 2014, Page 7-11 PDF (665.92 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/japp.2014.7711 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Rania El-Araby1; Aly El-Sebae1; Awad Farahat2 | ||||
| 1Environment Protection Dept., Faculty of Environmental Agricultural Sciences, Suez Canal University. | ||||
| 2Plant Protection Dept., Faculty of Agricultural Sciences, Suez Canal University. | ||||
| Abstract | ||||
| Laboratory experiment was conducted under controlled conditions to test the insecticidal activity of aqueous and organic extract of different solvents ethanol, acetone and hexane of three plants collected from north- Sinai Tree tobacco, Nicotiana glauca G.; Chinaberry, Melia azedarach L. and Lemon, Citrus limon L. against the adult stage of Granary Weevil, Sitophilus granarius L. The results showed that the aqueous extract of C. limon gave the highest toxicity among the other tested plants with LD5 equal to .3 x 5 ppm using ethanol solvent. However, the organic extracts of M. azedarach L. showed the best result with LD5 equal to .56 x 5 ppm. On the other hand, both the aqueous and organic extracts of N. glauca gave the highest toxicity with LD5's of .56 x 5 ppm and .86 x 5 ppm, respectively, with acetone solvent. But by using hexane solvent, aqueous extract of N. glauca was obviously the most superior in toxicity compared to the aqueous extracts of the tested plants with LD5 .7 x 5 ppm and in the organic phase M. azedarach had the best result with LD5 equal to .7 x 5 ppm . | ||||
| Keywords | ||||
| insecticidal activity; Nicotiana glauca; Melia azedarach; Citrus limon; Granary Weevil | ||||
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