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1967年对在苏联摩尔达维亚出现的美国白粉蝶,虽然采取了措施,在几年期间害虫几乎蔓延到共和国的所有地区。在采用机械、化学措施的同时,应用了生物方法。其中一种方法是摩尔达维亚中央林业科学研究委员会提出的利用核多角体病毒和颗粒病毒的悬浮液。最初制出、贮存和试验这种生物物质,是摩尔达维亚检疫实验室与中央林业科学委员会共同进行的。科托夫斯克地区的生物实验室,对防治美国白粉蝶这项工作进行了专门调查。1970年在该加盟共和国防治面积为855公顷,1971年为923公顷,1972年为1565公顷,1973年为1300公顷,1974年为1660公
In 1967, for the American white butterfly appeared in Moldavia, the Soviet Union, although measures were taken, the pest almost spread to all parts of the Republic over several years. In the use of mechanical, chemical measures at the same time, the application of biological methods. One such method is the use of a suspension of nucleopolyhedrovirus and particle virus proposed by the Moldavian Central Forestry Scientific Research Council. Originally, storage and testing of such biological material was carried out jointly by the Moldavian Quarantine Laboratory and the Central Forestry Science Council. The biological laboratory in the district of Katowice conducted a special investigation into the prevention and treatment of the American white butterfly. In 1970, the area under control in the republic was 855 hectares, 923 hectares in 1971, 1,565 hectares in 1972, 1,300 hectares in 1973 and 1,660 in 1974