研究了吡蚜酮浸种和拌种处理对灰飞虱的防治效果和水稻条纹叶枯病的控制效果。结果表明,秧田揭膜后5~11 d,25%吡蚜酮WP 200~400倍液浸种处理对灰飞虱成虫的防效在55.70%~74.88%之间;移栽后40 d,对水稻条纹叶枯病株防效在70.50%~72.34%。25%吡蚜酮WP 2~8 g/kg拌种对灰飞虱成虫防效在57.84%~86.30%,对水稻条纹叶枯病株防效在64.51%~75.51%。 The effects of soaking and seed dressing with Pymetrozine on the control of Laodelphax striatellus and the control of rice stripe disease were studied. The results showed that the control effect of WP (200 ~ 400 times) with 25% pymetrozine (WP) on the adults of Laodelphax striatellus was between 55.70% ~ 74.88% at 5 ~ Stripe leaf blight control effect in 70.50% ~ 72.34%. The control effect of 25% pymetrozine WP 2-8 g / kg was 57.84% ~ 86.30% against the SBPH adults and 64.51% ~ 75.51% against the rice stripe virus.