几种生物杀线虫剂对盆景植物上线虫的防治效果比较

Comparative Study of Control Effects of Several Biological Nematocides on Nematodes in Potted Plants

[目的]筛选具有较好杀线虫效果的生物杀线虫剂。[方法]对根息患和线虫必克分别采取拌根和稀释100、300倍灌根浸泡盆景处理,阿维菌素乳液稀释500倍灌根浸泡盆景处理,比较这几种生物杀线虫剂对盆景植物携带线虫的防治效果。[结果]根息患和线虫必克对盆景根围的植物病原线虫均有明显的杀灭作用。根息患和线虫必克稀释后浸泡盆景的作用效果显著优于拌根的作用效果,其中,以根息患稀释100倍的杀灭效果最佳,与阿维菌素稀释500倍相比,无论是杀线虫剂的药效作用,还是持效期方面,作用效果十分接近。[结论]根息患稀释100倍灌根浸泡盆景处理对盆景植物携带线虫的防治效果较好。

[Objective] The aim was to screen the biological nematocides with better killing efficiency.[Method] Several treatments of mixing G-RKN-S and Verticillium chlamydosporium for root dressing of the potted plant,and G-RKNS and Verticillium chlamydosporium at 100 times and 300 times resp.and abamectin at 500 times for pouring the root were set up to compare the control effects of the several biological nematocides on nematodes in potted plants.[Result] G-RKN-S and Verticillium chlamydosporium all had obvious killing effects on plant parasitic nematodes from the rhizosphere of potted landscape.The effect of G-RKN-S and Verticillium chlamydosporium diluted for soaking potted landscape was significant better than that the root dressing.Among them,the killing effect of G-RKN-S at 100 times was best and its effect was very close to that of abamectin at 500 times whether the medicine efficacy of nematocides or the persistent period.[Conclusion] G-RKN-S at 100 times for pouring the root of potted plant had better control effect on nematodes in potted plants.