Fumigant Activities of 2 Essential Oils Eztracted from Dried Fruits of Zanthozylum bungeanuma gainst the Adults of Sitophilus zeamais
Prickly ash tree, Zanthoxylum bungeanum (Maxim), which is a deciduous shrub, is widely grown in southwest China, especially in Sichuan Province and Chongqing municipality. The dried fruits of Zanthoxylum bungeanum are important condiment and traditional Chinese medicine. Chinese farmers have a long history to use the dried fruits and other parts of Zanthoxylum bungeanum to control stored grain insect pests. The essential oils extracted from the dried fruits of Zanthoxylum bungeanum are the promising resources of insecticide and fungicide. In this paper, the fumigation activities of green prickly ash essential oil and red prickly ash essential oil against the adults of Sitophilus zeama/s Motschulsky were researched at 20,23,26,29,32, and 35℃. The results showed that essential oil,temperature and essential oil concentration influenced the mortality significantly. At 29,32, and 35℃,12μL/L and 15μL/L doses of green prickly ash essential oil led to 100% mortality after 24 h fumigation. Meanwhile, red prickly ash essential oil caused 100% mortality at 16 and 19μL/L essential oil dosage under the same temperatures. In addition, LC50 values at 30℃ after 24,36,48, and60 h fumigation were also studied and the results indicated that LC50 value of green prickly ash essential oil was smaller than that of red prickly ash essential oil after the same fumigation time. The objective ofthis research was to provide reference data for using essential oils of Zanthoxylum bungeanum to control stored grain insect pests.
essential oil of Zanthozylum bungeanum Sitophilus zeamais fumigant activities
Deng Yongxue Wang Jinjun Liu Yinghong Nie Xiaoyan
Chongqing Key Laboratory of Entomology & Insect Control Engineering, Southwest University, Chongqing 400715, China
国际会议
成都
英文
144-148
2008-09-21（万方平台首次上网日期，不代表论文的发表时间）