桑蚕俗称家蚕,是重要经济昆虫。桑叶产量是蚕茧生产的基础。桑尺蠖在我省桑园普遍发生,纯以桑叶为食,以三龄幼虫越冬,翌年春桑树发芽时、桑尺蠖上树取食桑芽和嫩叶,严重影响桑条成长和桑叶产量。如用农药防治对蚕很不安全,而且污染环境。 Silkworm, commonly known as silkworm, is an important economic insect. Mulberry leaf yield is the basis of cocoon production. Mulberry mulberry mulberry commonly occurs in our province, pure mulberry leaves for food, the third instar larvae overwintering, the next spring mulberry germination, mulberry mulberry leaves on the tree feeding mulberry buds and young leaves, severely affected mulberry growth and mulberry leaf yield . Such as insecticide control of silkworms is not safe, but also pollute the environment.