ISSN 2169-303X
International Journal of Medicinal Plants Research ISSN 2169-303X Vol. 12 (1), pp. 001-006, January, 2023. © International Scholars Journals
Full Length Research Paper
Feeding deterrents from the tubers of Boschniakia himalaica against the red flour beetle, Tribolium castaneum
Jie Cao1, Zhi Long Liu2*, Shu Shan Du1* and Zhi Wei Deng3
1State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing 100875, China.
2Department of Entomology, China Agricultural University, 2 Yuanmingyuan West Road, Haidian District, Beijing 100193, China.
3Analytic and Testing Center, Beijing Normal University, No. 19, Xinjiekouwai Street, Beijing 100875, China.
Accepted 12 April, 2022
Abstract
In our screening program for new agrochemicals from Chinese medicinal herbs and local wild plants, MeOH/CHCl3 extract of the tubers of Boschniakia himalaica was found to possess strong feeding deterrent activity against the red flour beetle, Tribolium castaneum. From the MeOH/CHCl3 extract, three feeding deterrents were isolated by bioassay-guided fractionation. The constituent compounds were isolated and identified as 3β-acetoxyurs-12-en-28-oic acid (1), 3β-acetoxyurs-28,13-olide (2) and (+)-pinoresinol monoglucoside (3) based on high-resolution electron impact mass spectrometry and nuclear magnetic resonance. Compounds 1, 2 and 3 exhibited feeding deterrent activity against T. castaneum adults with ED50 values of 378, 940 and 609 ppm, respectively.
Key words: Boschniakia himalaica, Tribolium castaneum, feeding deterrent.