蝉虱净悬浮剂防治稻飞虱的试验研究

Test on Prevention and Curing of Paddy Hopper by Buprofezin-Isoprocarb Suspension

蝉虱净悬浮剂防治稻飞虱兼具叶蝉散速效和噻嗪酮持效期长的优点,且施药适期比较宽广.每666.7m^2以18～25克有效成分的剂量能在较长时间控制稻飞虱的为害、它对稻田蜘蛛的数量影响较小,从而使田间蜘蛛与飞虱之比值(蛛虱比)明显增大,有利于发挥天敌的自然控制作用.

In the prevention and curing of rice hopper, buprofezin-isoprocarb suspension has merits of quick results of leaf hopper disperser and long term effect of isoprocarb. Duration of pesticide ap plication is wide. 18-25g/666. 7m2 effective pesticide can control rice hopper harm for a long time. It bas little effect to spider in rice field, so that spide to hopper ratio increases significantly. It is benificial for native predator to give play to natural control.