新型生物杀螨剂NBIF-001防治金桔红蜘蛛田间药效试验

依据农药田间药效试验准则，测定新型生物杀螨剂NBIF-001对金桔红蜘蛛的田间防治效果。结果表明：NBIF-001 200亿可湿性粉剂能有效防治金桔红蜘蛛。剂型A在稀释250倍使用浓度下，施药一次后1、3、5、7、14和21 d对金桔红蜘蛛的防治效果分别为98.98%、94.88%、89.52%、85.36%、68.72%和74.61%。剂型B在稀释250倍使用浓度下，施药一次后1、3、5、7、14和21 d对金桔红蜘蛛的防治效果分别为99.60%，95.43%，90.88%、88.26%、72.39%和77.25%。化学杀螨剂对照20%阿维·螺螨酯悬浮剂在稀释3000倍使用浓度下，施药一次后1、3、5、7、14和21 d对金桔红蜘蛛的防治效果分别为68.42%、74.09%、65.82%、61.58%、62.64%和69.38。田间防治效果结果说明，新型生物杀螨剂NBIF-001防效高、药效快、持效期长，是防治金桔红蜘蛛的理想药剂。

Field Efficacy Test of New Biological Acaricide NBIF-001 for Control of Red Spider of Kumquat

The new biological acaricide NBIF-001 was tested for field efficacy against the red spider of kumquat according to pesticide field efficacy test criteria.The results showed that 20 billion wettable powder of NBIF-001 can effectively control the red spider.When formulation A was applied one time at 250×dilution,the control effect was 98.98%,94.88%,89.52%,85.36%,68.72%,and 74.61%,respectively,at 1,3,5,7,14 and 21 days after application.For formulation B,the data were 99.60%,95.43%,90.88%,88.26%,72.39%,and 77.25%,respectively.For the chemical acaricide 20%abamectin spirodiclofen SC at 3000×dilution,the control effect was 68.42%,74.09%,65.82%,61.58%,62.64%,and 69.38%,respectively.These results show that control effect by the new biological acaricide NBIF-001 is high,fast and durable,and NBIF-001 is an ideal pesticide for control of the kumquat red spider.