Contact Toxicity, Antifeedant Activity, and Oviposition Preference of Osthole against Agricultural Pests
文献类型： 外文期刊
作者： Dong, Fang 1 ; Chen, Xin 3 ; Men, Xingyuan 2 ; Li, Zhuo 2 ; Kong, Yujun 4 ; Yuan, Yiyang 2 ; Ge, Feng 2 ;
作者机构： 1.Shihezi Univ, Coll Agr, Xinjiang Prod & Construct Corps, Key Lab Special Fruits & Vegetables Cultivat Physi, Shihezi 832003, Peoples R China
2.Shandong Acad Agr Sci, Inst Plant Protect, Jinan 250100, Peoples R China
3.Cangzhou Normal Univ, Coll Life Sci, Cangzhou 061001, Peoples R China
4.Hebei Univ, Inst Life Sci & Green Dev, Sch Life Sci, Baoding 071002, Peoples R China
关键词： botanical pesticide; osthole; antifeedant; oviposition preference; Tetranychus urticae; Myzus persicae; Bactrocera dorsalis
期刊名称：INSECTS （ 影响因子：3.0； 五年影响因子：3.1 ）
ISSN：
年卷期： 2023 年 14 卷 9 期
页码：
收录情况： SCI
摘要： Osthole, the dominant bioactive constituent in the Cnidium monnieri, has shown acute pesticidal activities. However, its detailed toxicity, antifeedant, and oviposition preference effects against agricultural pests have not been fully understood, limiting its practical use. This study aimed to investigate the contact toxicity, antifeedant activity, and oviposition preference of osthole against three agricultural pests (Tetranychus urticae, Myzus persicae, and Bactrocera dorsalis). Our results showed that the Cnidium monnieri (L.) Cusson (CMC) has a high osthole content of 11.4 mg/g. Osthole exhibited a higher level of acute toxicity against the T. urticae to four other coumarins found in CMC. It showed significant pesticidal activity against T. urticae and M. persicae first-instar nymphs and adults in a dose-dependent manner but not against B. dorsalis adults. Osthole exposure reduced the fecundity and prolonged the developmental time of the T. urticae and M. persicae. Leaf choice bioassays revealed potent antifeedant activity in the T. urticae and M. persicae. Furthermore, the female B. dorsalis showed a distinct preference for laying eggs in mango juice with 0.02 mg/mL osthole at 48 h, a preference that persisted at 96 h. These results provide valuable insights into the toxicity, repellent activity, and attractant activity of osthole, thereby providing valuable insights into its potential efficacy in pest control.
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