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我县连作晚稻进入抽穗期后,往往受三化螟、稻飞虱、稻穗颈瘟等多种病虫为害。据试验和几年来大面积实践证明,在连作晚稻破肚露穗期及时施药实行多种病虫兼治,具有高效、安全、增收的作用。防治每亩用40%乐果乳剂3两加40%异稻瘟净乳剂3两,或甲胺磷乳剂加50%多菌灵可湿性粉剂各1.5两冲水150斤喷雾。方法是加强田间检查,做到连作晚稻破肚露穗一丘,防治一丘。防治效果如下:(1)降低三化螟白穗率:几年来的调查数据表明,凡在连晚破肚露穗期施药的田块,均可将白穗
After continuous cropping of late rice into heading stage in our county, it is often harmed by many pests, including rice stem borer, rice planthopper and rice neck blast. According to the experiment and years of extensive practice, it has been proved that it is effective and safe to increase the income by carrying out a variety of pests and diseases in a timely manner. Prevention and treatment of 40% dimethoate Emulsion 3 with two plus 40% of different blast plague cream 3 two, or methamidophos emulsion plus 50% carbendazim wettable powder 1.5 two 150 gallons of water spray. The method is to strengthen the field inspection, so as to make late breaking a spike a late rice, prevention and control of a mound. The control effect is as follows: (1) Reduce the white spike rate of the thrips: The survey data over the past few years indicate that anyone who sprinkle sprinkled spondylodon lately can apply the white spike