Chemical Composition and Insecticidal Activity against Sitophilus zeamais of the Essential Oils of Artemisia capillaris and Artemisia mongolica

Molecules

Zhi Long Liu¹  Sha Sha Chu¹ 

[1] ¹Department of Entomology, China Agricultural University, Haidian District, Beijing 100094, China ²College of Life Sciences, Beijing Normal University, Haidian District, Beijing 100875, China

关键词: Artemisia capillaris;    Artemisia mongolica;    Sitophilus zeamais;    fumigant;    contact toxicity;    essential oil;   

DOI  :  10.3390/molecules15042600

来源: mdpi

【 摘 要 】

In our screening program for new agrochemicals from local wild plants, Artemisia capillaris and A. mongolica were found to possess insecticidal activity against the maize weevil, Sitophilus zeamais. The essential oils of aerial parts of the two plants were obtained by hydrodistillation and were investigated by GC and GC-MS. The main components of A. capillaris essential oil were 1,8-cineole (13.75%), germacrene D (10.41%), and camphor (8.57%). The main constituents of A. mongolica essential oil were α-pinene (12.68%), germacrene D (8.36%), and γ-terpinene (8.17%). Essential oils of A. capillaris and A. mongolica possess fumigant toxicity against S. zeamais adults with LC₅₀ values of 5.31 and 7.35 mg/L respectively. The essential oils also show contact toxicity against S. zeamais adults with LD₅₀ values of 105.95 and 87.92 mg/adult, respectively.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.