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九台县二道沟林场几年来随着养蚕事业的发展,柞树林的面积也在扩大,相继柞树的主要害虫之一的天幕毛虫的发生及危害给养蚕业带来障碍,蚕业减产,蚕民经济收入受到损失。影响蚕丝出口量,由于柞蚕产量的下降,赤眼蜂的发展也受到影响,因柞蚕卵是我省目前生产赤眼蜂的最好的中间寄主。为保障养蚕业的发展,必须消灭和控制天幕毛虫的发生发展和蔓延。两年来对该虫
Erdaogou Forest Farm in Jiutai County With the development of sericulture in recent years, the area of oak groves is also expanding. One of the major pests of oak trees, one of the main pests of the oak tree, causes the problems of silkworm industry, Silkworm economy suffered a loss of income. Affect the silk exports, due to the decline in tussah production, Trichogramma development is also affected, because the tussah eggs is the province’s current production Trichogramma best intermediate host. In order to protect the development of sericulture, it is necessary to eliminate and control the occurrence, development and spread of the celestial caterpillars. Two years on the bug