摘要
为探明巴氏新小绥螨对麦蜘蛛的控制作用和防治效果,于晋南冬小麦田采用田间定量投放方法开展了巴氏新小绥螨的应用效果研究。结果表明,在麦蜘蛛密度约为900头/m时,按112.5万头/hm^2的量投放巴氏新小绥螨,防治效果可达95.19%;投放区的小麦产量比不投放区提高1495.05 kg/hm^2,增产幅度达24.81%;净收入增加1863.12元/hm^2,投入产出比为2.08∶1。在晋南麦长腿蜘蛛和麦圆蜘蛛混合发生地块,定时定量投放巴氏新小绥螨能有效控制麦蜘蛛为害,增产效果显著。
The control effect of Neoseiulus barkeri(Hughes)on wheat mite were studied by a quantitative test in the winter wheat field of southern Shanxi province in this paper.The results showed that the control effect could reach 95.19%by putting 1.125 million heads/hm^2 Neoseiulus barkeri(Hughes),when the density of wheat mites was about 900 heads/m.The yield of wheat in a experimental area was 1495.05 kg/hm^2 higher than the one in a control area,and the yield increase range was 24.81%.In addtion,the net income increased 1863.12 yuan/hm^2,and the input-output ratio was 2.08∶1.In the mixed occurrence plots of wheat mites in the south of Shanxi province,the damage caused by wheat mites can be effectively controlled by putting Neoseiulus barkeri(Hughes)regularly and quantitatively in fields,and the yield increase is remarkable.
作者
王克功
王睿
WANG Kegong;WANG Rui(Institute of Wheat,Shanxi Agricultural University,Linfen 041000,China)
出处
《山西农业科学》
2020年第8期1295-1297,共3页
Journal of Shanxi Agricultural Sciences
基金
国家重点研发计划项目(2018YFD0200404-06)。
关键词
巴氏新小绥螨
捕食性天敌
生物防治
麦蜘蛛
防治效果
Neoseiulus barkeri(Hughes)
predatory natural enemies
biological control
wheat mite
control effect
