旬阳县烟蚜防治时期及防治技术研究

本实验以旬阳县烟草生产作为研究对象,得出烟草上烟蚜控制的关键时期和技术规范。研究结果表明:6月15日左右为关键防治期;6月28日左右是烟蚜的必须防治期;而7月19日为推荐防治期。对烟蚜的化学防治实验表明:在4种药剂试验中,烟蚜对吡虫啉的反应最为敏感,第3d后烟蚜的死亡率为60%左右,根施净和石敢当有相似的防治效果,在第3d后的死亡率均达到40%左右,高效氯氰菊酯的杀虫效果稍差一些。

Key Period and Techniques for the Control of Myzus persicae in Xunyang County

With Xunyang county as the main study region,the key techniques and period for control of Myzus persicae were developed.The result showed that the key period for the control is around June 15.The date around June 28 is the day when Myzus persicae must be treated for control and the day of July 19 is the date recommended for control.The chemical treatment test showed that of four types of pesticides,the pest was very sensitive to imidacloprid which made the death rate reaching 60% three days after the use.Genshijing and Shigandang had the similar effect,which made the death rate reaching 40% and Cypermethrin produced the least effect.