41.7%路富达SC不同施药方式对番茄根结线虫的防治效果

Root-knot nematode control effect of 41.7%Lufuda SC different application methods in tomato

【目的】明确41.7%路富达SC不同施药方式对设施番茄根结线虫的防治效果。【方法】设41.7%路富达SC用药量0.030 mL/株,分别进行灌根、垄面喷雾、畦面撒施,对照药剂为20%噻唑膦FW灌根、10%噻唑膦GR 30 kg/hm^(2)地面撒施及清水处理,调查不同处理对根结线虫防治效果。【结果】41.7%路富达SC灌根、垄面喷雾、畦面撒施3个处理的虫口减退率校正防效分别为46.39%、23.21%、22.95%,防效分别达64.19%、59.74%、50.22%;对照药剂20%噻唑膦FW、10%噻唑膦GR的虫口减退率校正防效分别为42.67%、29.89%,防效分别为62.21%、48.46%。与清水处理相比,41.7%路富达SC灌根增产幅度达27.07%。【结论】41.7%路富达SC灌根处理对设施番茄根结线虫的防治效果显著优于垄面喷雾、畦面撒施和对照药剂处理,增产效果显著。

【Objective】To determine the control effect of 41.7%Lufuda SC different application methods on root-knot nematode of tomatoes.【Methods】41.7%Lufuda SC at a dosage of 0.030 mL/plant was used to irrigate the root,spray on ridge surface,and broadcast on strip surface.20%fosthiazate FW for root irrigation,10%fosthiazate GR at 30 kg/hm^(2) soil spraying and water were used as controls.The effect of different treatments on root-knot nematode control was recorded.【Results】The population declining rates of root-knot nematode by 41.7%Lufuda SC treatments to irrigate the root,spraying on ridge surface and broadcasting on strip surface were 46.39%,23.21%,and 22.95%respectively.The control effects were 64.19%,59.74%and 50.22%respectively.The population declining rates for 20%fosthiazate FW and 10%fosthiazate GR were 42.67%and 29.89%,the control effects were 62.21%and 48.46%respectively.41.7%Lufuda SC on root irrigation enhanced yield by 27.07%compared to water treatment.【Conclusion】For 41.7%Lufada SC,irrigation on roots method had much better effect in tomato root-knot nematode control than spraying on ridge surface,broadcasting on strip suface and all controls,increased yield significantly as well.