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为筛鉴高效低毒的蓟马防治药剂,将20%烯啶虫胺AS等五种杀虫剂对芒果和豆角田蓟马进行了田间药效试验,通过虫口减退率和校正防效两个指标对试验进行结果分析。结果表明,20%烯啶虫胺AS对茶黄蓟马Scirtothrips dorsalis Hood和花蓟马Frankliniella intonsa Trybom两种蓟马的防效均较为突出,其中以1mL/L的20%烯啶虫胺AS效果最好,药后第5d对茶黄蓟马和花蓟马的防控效果还分别维持在84.18%、77.36%,持效期较长,其次0.5%印楝素EC+N-go对两种蓟马也有较好的防效。5%啶虫脒EC+N-go对茶黄蓟马的防效优于花蓟马,而20%啶虫脒*20%丁硫克百威WDG对花蓟马的防效优于茶黄蓟马。各药剂对两种作物较安全。
To screen efficient and low toxicity thrips control agents, 20% nitenpyram AS and other five kinds of insecticides on the mango and field thrips field efficacy test, through the population decline and the correct control effect of two Indicators on the results of the test analysis. The results showed that the control effect of 20% nitenpyram AS on the two thrips, Scirtothrips dorsalis Hood and Frankliniella intonsa Trybom, was outstanding with 1% nitrobenzene AS at 1 mL / L The best five days after the drug on the prevention and control of the effects of the yellow thrips and flower thrips were also maintained at 84.18%, 77.36%, longer duration, followed by 0.5% azadirachtin EC + N-go against two Thrips also have good control effects. The control effect of 5% acetamiprid EC + N-go was better than that of flower thrips, but the control effect of 20% acetamiprid * 20% Thrips. Each agent is safer for both crops.