| Autor: |
Chi Hwan Lim, No-Joong Park, Luu Hoang Ngoc, Hyungrok Kim, Yong Ho Choi, Kyoung Soo Jang, Myung Soo Park, Jin-Cheol Kim, Gyung Ja Choi, Quang Le Dang |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
Journal of Asia-Pacific Entomology. 13:51-54 |
| ISSN: |
1226-8615 |
| DOI: |
10.1016/j.aspen.2009.09.002 |
| Popis: |
The methanol extract of dried roots of Euphorbia kansui, known as “Gan Sui” in oriental medicine, showed pesticidal activity against brown plant hopper (Nilaparvata lugens Stal) and two-spotted spider mite (Tetranychus urticae Koch). Bioassay-guided fractionation led to the isolation of two active compounds from the dried roots of E. kansui. The substances were identified as 3-O-(2,3-dimethylbutanoyl)-13-O-dodecanoylingenol (1) and 3-O-(2′E,4′Z-decadienoyl)-ingenol (2) by MS and NMR spectral data. Both compounds exhibited insecticidal activity against the brown plant hopper and compound 1 was active against the two-spotted spider mite. Compared to anise oil and eugenol, the two ingenane diterpenes showed greater activity against brown plant hopper. The results suggest that 3-O-(2,3-dimethylbutanoyl)-13-O-dodecanoylingenol and 3-O-(2′E,4′Z-decadienoyl)-ingenol could be used directly as natural pesticides or as lead principles for the control of brown plant hopper and two-spotted spider mite. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect