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绪言桑树的细菌病和萎缩病是桑树中受害较为严重的病害,数十年来,尚无适当的防治办法。从植病方面来讲:病害之发生与否和植物本身生理特性有关,而生理特性是受外界环境(生活条件)的影响起一定的变化的,所以通过改变环境来控制生理特性,以减轻或预防病的发生,这种防重于治的方针,可以从肥培管理着手进行。桑树是多年生用叶植物,为了叶子能喂蚕(药剂喷射后
Introduction Mulberry bacterial disease and atrophy is the more serious damage suffered mulberry disease, for decades, there is no appropriate prevention and treatment. In terms of plant diseases: the occurrence of disease and the physiological characteristics of the plant itself, and physiological characteristics are affected by the external environment (living conditions) from the impact of certain changes, so by changing the environment to control the physiological characteristics in order to reduce or Preventing the occurrence of disease, this principle of prevention and treatment, can start from the management of fertilizer training. Mulberry is a perennial with leafy plants, in order to feed the leaves of silkworms (after spraying