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本文报导了棉铃虫核型多角体病毒对烟青虫有很强的致病力,其防治效果显著,达100％。感染寄主的体壁、气管、中肠和马氏管的上皮细胞,以及脂肪体和血细胞等组织,但对神经节、肌肉和后肠的上皮细胞则未见浸染。在受感染的组织细胞核中,病毒多角体大量增殖,故其细胞核膨大,当增殖到一定量时,约3～6天,细胞核、细胞体相继破裂,组织坏死,病虫死亡。在第5天时,为病虫的死亡高峰。病虫死后体内的组织全部液化。
This paper reports that Helicoverpa armigera nuclear polyhedrosis virus has strong virulence against tobacco budworm and its control effect is remarkable, up to 100%. Infected host body wall, trachea, epithelial cells of midgut and Markovs, as well as fat body and blood cells and other tissues, but on the ganglion, muscle and hindgut epithelial cells were not disseminated. In the infected tissue nucleus, the virus polyhedrosis proliferation, so the nucleus dilation, when the proliferation to a certain amount of about 3 to 6 days, the nucleus, cell body have been broken, tissue necrosis, pests and death. On the fifth day, the peak of death for pests and diseases. The body tissues and tissues are all liquefied after the death of pests and worms.