【摘要】 1986年在陕西秦岭林区发现落叶松尺蠖核型多角体病毒,其多角体呈三角形、四边形、五边形和不规则形,大小为0.83～1.63μ,病毒粒子杆状,两端钝圆,37.3±8.75×93.2±1.63nm,单粒包埋,紫外光光谱最大吸收值为269nm。室内毒力测定LD₆₉为1.66×10⁴PIB/ml,利用2～6×10³PTB/ml病毒悬液林间防治落叶松尺蠖,其死亡率为94.3～97.5％。更多还原

【Abstract】 A nuclear polyhedrosis virus was isolated from Erannis ankeraria collected in the forestry of qinting mountains in shaan-xi province, in 1986.The polyhedroms were triangular, quadrilateral, tagonal and irregular in shape, 0.83-1.63μ. in size the virons were rod-shaped whose ends were blunt, 379±8.75×93.2±1.63nm, and single cmbeded. The maximum ultraviolet ray absorption spectrum was 269nm, LD50 was 1.66×10~4 PIB/mg mortality was 94.3-97.5% by using 2-6×10~8PIB/ml virus suspension to control Erannis ankeraria in the field.更多还原