烟雾机弥雾施药防治柑桔木虱成虫试验

Control Effects of Insecticide Fog Sprayed by Smoke Machine on Adult Citrus Psylla

为探索柑桔木虱成虫的防治方法,在棚内及果园进行了烟雾法施药防治柑桔木虱成虫药效试验。棚内试验结果表明,药剂处理以A1(80%敌敌畏EC∶48%毒死蜱EC∶柴油=1∶1∶6)最好,每公顷喷药油11 400 mL时,烟雾处理2、5、10和15 min,药后24 h对柑桔木虱成虫的防治效果均达到100.0%;相同的药剂配方及药油用量,柴油用量增加,防治效果略有下降;温度越高,烟雾防治柑桔木虱成虫效果越好。果园试验结果表明,药剂处理A1每公顷药液用量15 000 mL进行烟雾施药时,对柑桔木虱成虫的防治效果为92.6%,表明烟雾法施药对田间柑桔木虱成虫也有很好的防治效果。

In order to find an effective method to control adult citrus psylla, an experiment was conducted to study the control effects of insecticide fog sprayed by smoke machine on adult citrus psylla in greenhouse and citrus orchard. The results of greenhouse experiment showed that the control effect of treatment A1 （80 % dichlorvos EC： 48 % chlorpyrifos EC： diesel oil = 1 ： 1 ： 6） was best. With spraying fog of 11400 mL/hm2 A1 （80 % dichlorvos EC： 48 % chlorpyrlfos EC： diesel oil = 1： 1：6） for 2, 5, ] 0 and 15 min, its control effect reached 100.0 % 24 hours after spraying. The control effect would decline with increasing dosage of diesel oil and increase with increasing temperature. The results of citrus orchard trial showed that the control effect of 15000 mL/hm2 A1 （ 80 % dichlorvos EC： 48 % chlorpyrifos EC： diesel oil = 1 ： 1 ： 6） reached 92.6 %. It was indicated that the method that spraying insecticide fog by smoke machine could also effectlvely control the adult citrus psylla in field.