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树粉蝶又名山楂粉蝶,为害次生林和果树。广泛分布于欧洲,亦分布于中国和库页岛。笔者于1981年在黑龙江省中医学院内山丁子树上,发现树粉蝶病死虫,经鉴定其病原为核型多角体病毒。这在我国是首次发现。通过3年的研究证明,此病毒对树粉蝶具有较强的致病力,是很有价值的生物防治手段。据Krieg报告,树粉蝶核型多角体为多角形,病毒粒子为杆状,核酸为DNA,核酸所占的比例为9％。苏联曾用粹取的悬浮液5×10~6PIB/ml喷稠李叶饲喂2龄幼虫,12天后
Butterflies, also known as hawthorn butterflies, harmful secondary forest and fruit trees. Widely distributed in Europe, also distributed in China and Sakhalin. The author in 1981 in Heilongjiang Province Institute of Traditional Chinese Medicine Ding Ding tree, found that the disease Penicillium spp., Its pathogen identified as nuclear polyhedrosis virus. This is the first time in our country. Through 3 years of research has shown that this virus has a strong virulent virulence, is a valuable means of biological control. According to Krieg’s report, the tree-dwelling nucleus polyhedron is polygonal, the virion is rod-shaped and the nucleic acid is DNA, accounting for 9% of the nucleic acid. The Soviet Union had used the extract of the suspension 5 × 10 ~ 6PIB / ml spray thick leaf feeding 2nd instar larvae, 12 days later