Studies on the Nuclear Polyhedrosis Virus lsolated from the Mulberry Caterpillar Sarcopolia illoba (Butler)

This paper reports the results of studies on a Nuclear Polyhedrosis Virus(SiNPV) isolated from the mulberry caterpillar [Sacopolia illoba (Butler)]in Harbin. In most cases there were 4--5 nucleooapsids enveloped within eachvirus bundle of SiNPV. The polyhedra of SiNPV were 2. 06±0. 27μm in diameter,and nucleocapsids were measured about (0.36±0.01)×(0.058±0. 004)μm. SiNPVwas also infectious to the neonate larvae of several other noctuids includingDiscestra stigmosa, Mamestra brassicae, Scotia segetum, S. ips...