不同药剂对黄瓜根结线虫病的防治效果研究

Study on the Control Effect of Different Pesticides on Cucumber Root-knot Nematode Disease

为有效防治黄瓜根结线虫病,保证黄瓜安全生产,本试验选择10.5%阿维·噻唑膦颗粒剂、0.5%阿维菌素颗粒剂和10%噻唑膦颗粒剂等药剂进行了黄瓜根结线虫病的田间药剂防治试验。结果表明,施药40 d,每667 m^(2)用10.5%阿维·噻唑膦颗粒剂1500~1800 g和10%噻唑膦颗粒剂1800 g较其他处理防治效果显著,防治效果达到77%以上,药剂的持效期长;试验期间观察各药剂处理区黄瓜的叶片颜色、株型等,均未见药害,亦未见药剂处理促进或抑制黄瓜生长的现象,说明各药剂在试验用量下对黄瓜生长安全。建议生产中交替使用阿维·噻唑膦复配制剂和噻唑膦单剂,不仅能够有效防治黄瓜根结线虫病,还可以延缓抗药性的产生和发展。

In order to effectively prevent and control cucumber root-knot nematode disease and protect the safe production of cucumber,10.5%abamectin·fosthiazate granules,0.5%abamectin granules and 10%fosthiazate granules were selected in this experiment.The results showed that the control effect of 10.5%abamectin·fosthiazate granules 1500-1800 g and 10%fosthiazate granules 1800 g per 667 m^(2)was more significant than that of other treatments after 40 days of application,and the control effect reached more than 77%.During the experiment,the leaf color and plant type of cucumber in each treatment area were observed.There was no phytotoxicity,and there was no phenomenon that the treatment promoted or inhibited the growth of cucumber,indicating that each agent was safe to the growth of cucumber under the test dosage.It was suggested that the alternate use of abamectin·fosthiazate compound preparation and fosthiazate single agent in production could not only effectively control cucumber root-knot nematode disease,but also delay the emergence and development of drug resistance.