不同药剂处理对猕猴桃根结线虫的防治效果

为了筛选出能够有效防治猕猴桃根结线虫的药剂。采用田间药剂施用筛选的方法,研究了12.5%阿维·噻唑膦EC等7种药剂对猕猴桃根结线虫的防治效果。结果表明供试的不同药剂对猕猴桃根结线虫均有一定的防效,能控制土壤中2龄幼虫的数量和抑制根结的形成,其中12.5%阿维·噻唑膦EC防治效果最好,药后45 d、180 d对根结线虫和二龄若虫的防治效果分别为78.40%、69.90%和83.83%、80.26%;10%噻唑膦GR与5%阿维菌素GR防效较好;2亿/毫升淡紫拟青霉+生物菌培养基B++(微生物肥)防效较差。12.5%阿维·噻唑膦EC、10%噻唑膦GR和5%阿维菌素GR可作为猕猴桃根结线虫防治的首选药剂。

Control effect of different pesticide treatments against root-knot nematodes on Actinidia

In order to select effective pesticides against root-knot nematodes (Meloidogyne spp.)on Actinidia, the control effect of abamectin fosthiazate 12.5% EC and other 6 pesticide treatments against root-knot nematodes on Actinidia was studied using the method of field application of chemicals. The results indicated that these different pesticide treatments all had effect on the nematodes. Different pesticides had good control on the number of second instar larvae J2 and inhibited the formation of root-knot. Abamectin fosthiazate 12.5% EC had the best control and the control effect after 45 d, 180 d on the root-knot nematodes and on the second instar larvae were 78.40%, 69.90% and 80.26%, 83.83%, respectively. Fosthiazate 10% GR and abamectin 5% GR had good control effects, while 200 million/ml of Paecilomyces lilacinus+bi﹣ological bacteria medium B++( microbial fertilizer) had the weakest control effect. It is concluded that abamectin fosthia﹣zate 12.5% EC, fosthiazate 10% GR and abamectin 5% GR can be used to control root-knot nematode more effectively.