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桑树由真菌、细菌、病毒、类菌质体等病原体引起的病害有40种之多,这些病害的防治都要使用杀菌剂。桑树原是生育旺盛健壮的植物,但在生育期间,由于养蚕生产的需要,重复进行采叶、伐采、树形养成等人为的生产操作,而这些都是违反桑树生理的,所以就很容易造成桑树的树势变差,而且,我们生产的收获物是桑叶,桑叶是蚕儿的饲料,因此要针对病原体的弱点,选用在防治上有效的药剂。还要注意使用的适期,既不让病害发生和蔓延,又使之保持良好的饲用价值。桑园的杀菌剂已注册的有15种,
Mulberry by fungi, bacteria, viruses, bacteria and other pathogens caused by plastids have as many as 40 kinds of diseases, the prevention and treatment of these diseases are the use of fungicides. Mulberry is a strong and robust plant growth, but in the growing period, due to the needs of sericulture production, repeated mining, cutting mining, tree cultivation and other man-made production operations, which are violated mulberry physiology, so It is easy to cause deterioration of mulberry trees, and we produce the harvested mulberry leaves, mulberry leaves are feed, so we should focus on the weaknesses of pathogens, the selection of effective agents in the prevention and treatment. Also pay attention to the use of the appropriate period, neither disease and spread, but also to maintain a good value for the feed. Mulberry fungicides have been registered in 15 species,