5种植物精油对长头谷盗的控制作用研究  

Study on the Repellent Activity of Plant Essectial Oils Against Latheticus oryzae Waterhouse

作　　者：郭钰[1] 曾玲[1] 梁广文[1] 

机构地区：[1]华南农业大学昆虫生态研究室,广州510642

出　　处：《中国粮油学报》2013年第5期57-62,共6页Journal of the Chinese Cereals and Oils Association

基　　金：国家科技支撑计划(2011BAD03B02)

摘　　要：选取小茴香、肉桂、丁香、辣椒和生姜精油,研究其对长头谷盗的控制作用。结果表明:(1)5种精油对长头谷盗均具有显著的驱避活性,其中丁香和生姜精油的5个试验浓度(1∶1、1∶10、1∶15、1∶20和1∶50)对长头谷盗的驱避效果最好,处理60 h后,其驱避活性均达到Ⅴ级,72 h后,其驱避活性分别仍达到Ⅲ级和Ⅳ级;(2)小茴香、肉桂和丁香精油对长头谷盗有明显的触杀作用,其中处理最低浓度(1:50)的肉桂时,长头谷盗的死亡率仍在60%以上;辣椒和生姜精油的触杀活性较弱,5个试验浓度对长头谷盗的死亡率几乎为零;(3)5种精油对长头谷盗均无明显的熏蒸作用。Five plant essential oils of Foeniculum vulgare, Cinnamomum cassia,Syzygium aromaticum, Capsicum annuum and Zingiber officinale were used to investigate their repellent action, contact action and fumigation against Latheticus oryzae Waterhouse in this paper. The results showed that ： （ i ） Five plant essential oils significantly repelled L. oryzae, and Syzygium aromaticum and Zingiber officinale with 5 tests concentration （1：1,1 ： 10,1：15,1：20 and 1 ： 50） had the best repellent effects. 60 h later, the repellency percentages was V level, and 72 h later, the percentages were 11I level and 1V level, respectively. （2）Foeniculum vulgare, Cinnamomum cassia and Syzygium aromaticum essential oils could effectivelf kill L. oryzae adults. The contact toxicity of Foeniculum vulgare essential oil at 1 ： 50 concentration had no contact effect to L. oryzae, but the mortality of 1 ： 50 concentration was over 60%. However, the contact activity of Capsicum annuum and Zingiber officinale test concentrations were nearly zero. （3）In a word, all L. oryzae adults. essential oils were weak, and the mortality of L. oryzae of five of the five kinds of essential oils couldn＇ t effectively fumigate

关 键 词：植物精油 长头谷盗 驱避作用 触杀作用 熏蒸作用 

分 类 号：S482.39[农业科学—农药学]