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1 褐稻虱防治:我省常年晚稻在9月中、下旬遭受第五代褐稻虱为害的损失最大,是防治重点。晚粳在9月中旬左右,褐稻虱为害后,不仅会直接影响产量,而且容易诱发小球菌核病的流行,加重稻谷损失。因此,进入9月中旬,要加强虫情调查,当每百蔸检查到有褐稻虱1500头(常规稻)和2000头(杂交稻)的田,要立即施药防治。每666.7m~2用扑虱灵30g进行喷雾防治。还可用蝉虱净50g,或虱纹灵(一包)兼治小球菌核病和纹枯病。 2 晚稻穗瘟防治:9月中旬后,晚稻破口期至抽穗
1 brown planthopper control: perennial late rice in our province in mid-September, suffered the fifth-generation loss of brown planthopper most damage, is the focus of prevention and treatment. Late Japonica in mid-September, brown planthopper damage, not only will directly affect the yield, but also easily lead to the prevalence of Sclerotinia, increase the loss of rice. Therefore, in mid-September, the survey on insects should be strengthened. When there are 1,500 brown planthopper (conventional rice) and 2,000 (hybrid rice) fields checked every 100th, control should be given immediately. Every 666.7m ~ 2 spray with propamol 30g spray control. Can also be used to net louse 50g, or louserim (a package) cure both Sclerotinia scab and sheath blight. 2 late rice panicle blast control: late in mid-September, late rice breaking to heading