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一忌凭经验用药。在养殖生产中,由于缺乏病害的诊断技术和设备,一些养殖户在疾病发生后,未经必要的诊断,就凭经验盲目用药,往往信奉“治病先杀虫”的错误原则,不管是什么原因引起的疾病,首先就使用敌百虫、灭虫精等杀虫药,这样一来不仅贻误了病害防治的时机,而且还耗费了人力和财
Avoid using medication by experience. In aquaculture production, due to the lack of disease diagnostic techniques and equipment, some farmers often blindly believe in the principle of “killing insects after treatment” without the necessary diagnosis after the occurrence of the disease, regardless of the principle What causes the disease, first of all, the use of trichlorfon, pest control insecticide and other insecticide, this not only delaying the timing of disease prevention and control, but also cost manpower and financial