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1991年进行了飞机超低容量喷洒25%苏脲Ⅰ号杀虫剂防治泡桐大袋蛾应用技术的试验。试验结果证明:幼虫孵化结束后是最佳喷药防治时期,超低容量喷洒比低容量喷洒工作效率提高77.8%,飞行费和勤杂费均节省43%以上;在所试验架次中,以每亩喷苏脲Ⅰ号有效成分10g 剂量为最好,具有防治工作效率高、杀虫速度快、效果好、成本低、效益显著等优点。平均杀虫率97.5%,10天后幼虫进入死亡高峰期,3龄以前幼虫占总死亡率的80%以上。喷药防治后,不仅完全控制了大袋蛾对泡桐、林果和农作物的危害,还兼治了农林其他害虫。
In 1991 carried out the test of ultra-low-capacity aircraft spraying 25% Su urea I insecticide prevention and treatment of Paulownia pouch moth application technology. The results showed that larvae hatched after the best spraying control period, the ultra-low-capacity spraying than the low-capacity spraying efficiency increased by 77.8%, flying and drowsiness savings were more than 43%; in the test frame, The effective dose of sprayed urea I was 10g, which has the advantages of high control efficiency, fast insecticidal effect, good effect, low cost and significant benefit. The average insecticidal rate was 97.5%. After 10 days, the larvae entered the peak of death, and the larvae before the third instar accounted for more than 80% of the total mortality. After spraying prevention and control, not only completely control the big bag moth on the Paulownia, fruit and crop damage, but also treat other pests in agriculture and forestry.