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当前位置: 首页 > 文章 > 新疆喀什地区设施栽培条件下丽蚜小蜂扩散功能的研究 新疆农业科学 2012,49 (7) 1256-1260
Position: Home > Articles > The Research of Diffused Function of E.formosa Artificially Propagated in Greenhouse of Kashi,Xinjiang Xinjiang Agricultural Sciences 2012,49 (7) 1256-1260

新疆喀什地区设施栽培条件下丽蚜小蜂扩散功能的研究

作  者：
张振宇;胡红英;吐尔逊;郭文超;艾尔肯·麦麦提;吴家明
单  位：
阿克苏地区荒漠节水农业试验推广站;新疆大学生命科学与技术学院;农业部西北荒漠绿洲作物有害生物综合治理重点实验室/新疆农科院植物保护研究所
关键词：
丽蚜小蜂;新疆;白粉虱;扩散能力
摘  要：
[目的]研究新疆喀什设施蔬菜种植区人工繁殖丽蚜小蜂的扩散功能,为利用人工繁殖丽蚜小蜂防治温室白粉虱提供技术支持。[方法]试验设置三个重复处理,放蜂数量均为2 000头,放蜂点设在温室大棚的中部,以放蜂点为中心点,对距离中心点东西方向2、4、6、8 m处植株作插牌标记,放蜂后3 d,采集标记植株叶片,带回室内观察寄生率,分析扩散距离与寄生率之间的关系。[结果]丽蚜小蜂释放后第3 d,寄生率由中心点向东西两侧呈降低趋势,放蜂中心点和距中心点2 m处被丽蚜小蜂所寄生的白粉虱若虫寄生率之间没有显著差异,分别为中心点83.94%、2 m处为80.79%和77.36%,而与距中心点4、6和8 m处存在显著或极显著差异。距中心点8 m处平均寄生率最低,为11.46%和3.17%。[结论]在温室条件下,人工繁殖丽蚜小蜂由放蜂中心点向两侧扩散距离越远,寄生率越低。放蜂后3 d丽蚜小蜂的扩散范围集中在半径2 m的范围内,有部分个体扩散距离可以达到4～6 m,有极少数个体扩散距离可以达到8m。
译  名：
The Research of Diffused Function of E.formosa Artificially Propagated in Greenhouse of Kashi,Xinjiang
作  者：
ZHANG Zhen-yu~(1,2),HU Hong-ying~1,Tursun~2,GUO Wen-chao~2,Erkin Mamat~3,WU Jia-ming~1 (1.College of Life Science,Xinjiang University,Urumqi 830046,China;2.Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences,Urumqi 830091,China;3.Agriculture Demonstration Base of Desert Water-saving Irrigation in Aksu,Aksu Xinjiang 843000,China)
关键词：
Encarsia formosa;;Xinjiang;;Trialeurodes vaporariorum;;diffusion ability
摘  要：
[Objective]The research aimed to study the diffusion of Encarsia formosa artificially propagated in greenhouses of Kashi,Xinjiang in order to provide the technical support for preventing Trialeurodes vaporariorum.[Method]The diffusion function test of E.formosa has 3 repeated settings,the releasing number of E.formosa is 2,000,the point of releasing is located in the middle of the greenhouse, and then distances from the releasing point of 2,4,6,8 m in the east and west sides were marked.Three days after releasing E.formosa,leaves would be collected and brought back to the lab for us to observe the whitefly parasitic rate and analyze the relationship between the diffusion distance and rate of parasitism on both sides.[Result]Three days after releasing E.formosa,parasitic rate from the center point to both sides tend to decrease,the parasitism had no significant difference between release center in which the parasitic rate is 83.94%and 2 meters away from the center where the parasitic rate is 80.79%,the other side is 77.36%, while the places 4,6,8m away from the center point,significant or remarkably significant differences were displayed.The lowest parasite rates of 11.46%and 3.17%were recorded at the both sides 8 m away from the center point.[Conclusion]Under greenhouse conditions,the farther the diffusion distance from the release center to both sides,the lower the parasite rate would be.Three days after releasing E.formosa,the spreading radius is within 2 m,and the diffusion distance of some individuals can reach the range of 4 - 6 m, but there are very few individual diffusion distance can reach 8 m.

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