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内吸杀菌剂易引起病菌产生抗药性,在使用时必须注意到与其它农药交替使用或合理混用,以推迟病菌产生抗性的时间,延长使用年限。否则单一使用,一、两年即减低效果。过去曾有过这方面的教训,譬如托布津防治瓜类白粉病,效果很好,就因为没有注意这一问题,结果很快丧失了疗效。 瑞霉毒是一种有内吸双向传导作用的杀菌剂,对藻菌纲的病菌有特殊杀灭能力。 我国近两年曾从瑞士汽巴—加基公司进口瑞霉毒农药,该药的剂型有25％可湿性粉剂,35％颗粒剂又称“阿普隆”,58％瑞毒霉锌可湿性粉剂,50％瑞毒霉锰可湿性粉剂,58％瑞毒霉
Bactericides within the suction easily lead to the emergence of drug-resistant bacteria, and must be noted in the use of alternative or rational use of other pesticides mixed to delay the germs of the time of resistance, extend the useful life. Otherwise, a single use, one or two years to reduce the effect. In the past, there have been some lessons in this area. For example, Topuzin’s prevention and control of melon powdery mildew is very effective because of its failure to pay attention to this problem and its rapid loss of efficacy. Rui Toxin is a bi-directional biocide fungicide, killing algae bacteria have special ability to kill. In the past two years, our company imported Swiss Tara virus pesticide from Switzerland Ciba-Gaga Company. The dosage form of this medicine is 25% wettable powder, 35% granule is also called “Apron”, and 58% Powder, 50% Rui Zhi mold manganese wettable powder, 58% Swiss mold mildew