Yu Hang, Liu Boyu, Zhao Yuhan, Li Jinliang, Wu Guoxing, Ma Junhong, Gui Furong, Tao Feng, Hao Xiaojiang, Ding Xiao, Qin Xiaoping
State Key Laboratory for Conservation and Utilization of Bioresources in Yunnan, Yunnan Agricultural University, Kunming 650100, China.
State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
Metabolites. 2023 Dec 25;14(1):15. doi: 10.3390/metabo14010015.
Azadirachtin is regarded as one of the best botanical pesticides due to its broad spectrum of insecticides and low interference with natural enemies. To enhance the effect of azadirachtin and slow down the generation of resistance, the combined activity was studied. Here, we found that saponin B (DVSB) isolated from the seeds of has good combined activity with the azadirachtin. The mixture of DVSB and azadirachtin in a volume ratio of 1:4 had the strongest combined effect against , with a co-toxicity coefficient (CTC) of 212.87. DVSB exerted its combined activity by affecting the contact angle, surface tension, maximum retention and cell membrane permeability. When mixed with DVSB, the contact angle and surface tension decreased by 30.38% and 23.68%, and the maximum retention increased by 77.15%. DVSB was screened as an effective combined activity botanical compound of azadirachtin upon the control of and highlights the potential application of botanical compounds as pesticide adjuvants in the pest management.
印楝素因其具有广谱杀虫活性且对天敌干扰小，被视为最佳植物源杀虫剂之一。为提高印楝素的效果并减缓抗性产生，对其复配活性进行了研究。在此，我们发现从[植物名称]种子中分离得到的皂苷B（DVSB）与印楝素具有良好的复配活性。DVSB与印楝素体积比为1:4的混合物对[害虫名称]的复配效果最强，共毒系数（CTC）为212.87。DVSB通过影响接触角、表面张力、最大持留量和细胞膜通透性发挥其复配活性。与DVSB混合时，接触角和表面张力分别降低了30.38%和23.68%，最大持留量增加了77.15%。在防治[害虫名称]方面，DVSB被筛选为印楝素有效的复配活性植物化合物，凸显了植物化合物作为农药助剂在害虫治理中的潜在应用。
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