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1991年杭州新华丝厂从香港进口前苏联春茧进行来料加工,我们在现场检疫时多次截获钩纹皮蠹等危险性害虫,带虫包率达30％。害虫为害后,使蚕茧的质量严重下降,成品率随之降低。以往仓库使用“六六六”和敌敌畏进行库房消毒,均不能有效地控制蚕茧包内害虫。在新华丝厂协助下,我们利用磷化铝(纯度99％)、溴甲烷(纯度56％)和环氧乙
In 1991, Xinhua Wire Mesh Factory in Hangzhou imported materials from the former Soviet Union for spring cocoons imported from Hong Kong. During the quarantine, we seized many dangerous pests such as Hypophthalmichthys molitrix, with a rate of 30%. After pest infestation, the quality of silkworm cocoon will decline seriously, and the yield will decrease. In the past, the warehouses used “666” and dichlorvos for disinfection of the storeroom, and could not effectively control the pests in the cocoon package. With the help of Xinhua Wires Factory, we use aluminum phosphide (99% purity), methyl bromide (56% purity) and ethylene oxide