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灭蚊真菌贵阳腐霉对小菜蛾幼虫安全性的室内检测
引用本文:刘萍,周顺,先丹,杨茂发,苏晓庆. 灭蚊真菌贵阳腐霉对小菜蛾幼虫安全性的室内检测[J]. 贵阳医学院学报, 2007, 32(3): 225-226,230
作者姓名:刘萍  周顺  先丹  杨茂发  苏晓庆
作者单位:1. 贵阳医学院,生物学教研室,贵州,贵阳,550004
2. 贵州大学,农学院植物保护系,贵州,贵阳,550025
摘    要:目的:了解灭蚊真菌贵阳腐霉对非靶生物小菜蛾幼虫是否有毒害作用.方法:采用胃毒法和触杀法处理小菜蛾四龄幼虫,24 h后观察幼虫死亡率、叶片重量差,5 d后观察化蛹率.结果:胃毒法和触杀法处理小菜蛾幼虫平均死亡率分别为15.5%和12.5%,叶片重量差分别为0.89 g和0.41 g,平均化蛹率分别为22%和17%.与对照组比较差异无显著性.结论:灭蚊真菌贵阳腐霉对小菜蛾幼虫是安全的.

关 键 词:真菌  灭蚊  贵阳腐霉  小菜蛾  安全性
文章编号:1000-2707(2007)03-0225-02
修稿时间:2006-12-312007-04-16

An Observation on the Safety of Pythium guiyangense to Plutella xylostella Larvae
LIU Ping,ZHOU Shun,XIAN Dan,YANG Maofa,SU Xiaoqing. An Observation on the Safety of Pythium guiyangense to Plutella xylostella Larvae[J]. Journal of Guiyang Medical College, 2007, 32(3): 225-226,230
Authors:LIU Ping  ZHOU Shun  XIAN Dan  YANG Maofa  SU Xiaoqing
Affiliation:1. Department of Biology, Guiyang Medical College, Guiyang 550004, China ; 2. Department of Plant Protection, College of Agriculture, Guizhou University, Guiyang 550025, China
Abstract:Objective:To investigate if Pythium guiyangense is safe to Plutella xylostella larvae.Methods: Stomach-toxicity and touch-killing methods were adopted to treat the 4th instar larvae of Plutella xylostella with mycelia of Pythium guiyangense.The larval mortality and weight differences of leaf(food of larvae) in 24 hours were observed and the pupation rates in 5 days were recorded as indexes.Results: In stomach-toxicity test and touch-killing test,the average mortality rates were 15.5% and 12.5%,the leaf blade weight differences were 0.89 g and 0.41 g,and the average pupation rates 22% and 17% respectively.There was not any difference found between the experimental group and control group.Conclusion: Pythium guiyangense is safe to Plutella xylostella larvae.
Keywords:fungi    mosquito control   Pythium guiyangense    Plutella xylostella    safety
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