数種りんし目こん虫の多角体病とその誘発

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  • Studies on Nuclear Polyhedroses and Their Inductions in Some Lepidoptera
  • スウシュ リンシモク コンチュウ ノ タカクタイビョウ ト ソノ ユウハツ

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Investigations were carried out to find out polyhedroses in some lepidopterous larvae. Nuclear polyhedroses were observed in Barathra brassicae, Plusia nigrisigna, Hyphantria cunea and Antheraea pernyi, but no cytoplasmic polyhedrosis could be detected. Sizes and shapes of these polyhedral bodies are shown in photograph (Fig. 1).<br>No cross-infection of polyhedrosis was observed among Barathra brassicae, Hyphantria cunea and Bombyx mori, although each species could be infected when fed with the polyhedral bodies of the same species.<br>When the larvae of Barathra brassicae and Hyphantria cunea were exposed to low temperature (5°C) for 1∼2 days or so, no polyhedrosis was induced. But polyhedroses were induced in Hyphantria cunea by feeding chemicals such as arsenic acid, merculic chloride, Phygon, EDTA (ethylene diamine tetraacetic acid) and sodium salt of EDTA.

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