使用六六六、滴滴涕、波尔多液等防治稻田主要病虫,已较普遍。但有些地区反映“喷雾器不好下水田”。由两人抬药水桶用单管喷雾器,边抬边打,的确不方便,速度也慢;用背式气压喷雾器,压力又会越变越弱,喷射面越来越小,雾点越变越粗,不但速度慢,药效也受到影响;用喷枪也是 The use of BHC, DDT, Bordeaux mixture and other major pests and diseases in rice fields has been more common. But some areas reflect “bad sprayer field ”. Lift the barrel by a single tube with a single tube sprayer, while carrying edge hit, indeed inconvenient, slow speed; with a back-pressure sprayer, the pressure will become weaker, the spray surface is getting smaller and smaller fog point becomes more Coarse, not only slow, efficacy has also been affected; spray gun is too