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蔬菜病害多,分类有四种。一类细菌型,斑烂有菌脓;二类真菌型,斑状菌丝生;三类病毒病,植株变异形;四类生理病,管理不善生。读了此口诀,各病要分清。先说病害名,再讲病特征,最后说防治,管理加药名。病前先预防,保护少生病。得病早用药,药到病减轻。混配虽然好,浑浊不能用。一药效再好,常用行不通,病菌起抗性,费钱不治病。生物菌剂药,喷施早晚用。蔬菜浇水前,用药先防病。冬春要施药,最好等天晴。阴雨天防病,粉尘烟剂用,切莫水喷雾,湿大病更重。
Vegetable diseases, there are four categories. A class of bacteria, pus rot stain; second-class fungi, stain mycelium; three virus disease, plant variant; four physiological diseases, poor management of students. Read this formula, all diseases must be distinguished. First say the name of the disease, talk about the disease characteristics, and finally said that prevention and treatment, management plus medicine name. Pre-sickness prevention, protection of less sick. Get sick early medication, medicine to reduce the disease. Although mixed with good, muddy can not be used. No matter how good a drug effect, commonly used does not work, the bacteria play a resistance, money is not cured. Biological agents medicine, spray morning and evening use. Before the watering of vegetables, medication to prevent disease. Spring and winter to apply medicine, it is best to wait fine. Rainy days, disease prevention, dust and smoke, do not spray water, wet serious heavier.