Pesticidal activity of ingenane diterpenes isolated from Euphorbia kansui against Nilaparvata lugens and Tetranychus urticae

作者：Dang Quang Le; Choi Yong Ho; Choi Gyung Ja; Jang Kyoung Soo; Park Myung Soo; Park No Joong; Lim Chi Hwan; Kim Hyungrok; Ngoc Luu Hoang; Kim Jin Cheol^*

来源：Journal of Asia-Pacific Entomology, 2010, 13(1): 51-54.

DOI：10.1016/j.aspen.2009.09.002

• Brown plant hopper
• Euphorbia kansui
• Ingenane diterpene
• Pesticidal activity
• Two-spotted spider mite

The methanol extract of dried roots of Euphorbia kansui, known as "Gan Sur in oriental medicine, showed pesticidal activity against brown plant hopper (Nilaparvata lugens Stal) and two-spotted spider mite (Tetranychus ultimo 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 NW spectral data. Both compounds exhibited insecticidal activity against the brown plant hopper and compound 1 was active against the two-spotted spicier 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.

• 出版日期2010-3