| 家蚕中肠型脓病发生规律的研究——Ⅱ.留存在蚕室地面表土中的中肠型脓病病原的消长变化 |
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| 引用本文： | 黄可威,陆有华.家蚕中肠型脓病发生规律的研究——Ⅱ.留存在蚕室地面表土中的中肠型脓病病原的消长变化[J].蚕业科学,1986(1). |
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| 作者姓名： | 黄可威 陆有华 |
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| 作者单位： | 中国农业科学院蚕业研究所
(黄可威)，中国农业科学院蚕业研究所(陆有华) |
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| 摘 要： | 在农村定点调查同一蚕期和一年内不同蚕期,有中肠型脓病病史的蚕室地面表土中的中肠型脓病病原的消长变化,总的倾向是:(1)在同一蚕期中,消毒前病原留存量大,消毒后病原留存量下降,随着蚕的生长发育,病原留存量又回升,上蔟时留存量最高。(2)在同一年内不同蚕期,蚕室地面表土中的病原留存量,随着养蚕次致的增加而增加.提出了相应的防病措施。
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| 关 键 词： | 家蚕 中肠型脓病 病原 |
Studies on the law of occur- rence of cytoplasmic polyhedrosis of the silkworm ( Bombyx mori ) : II .Changes on growth and decline of pathogen of cytoplasmic polyhedrosis existing in surface of floor-soil of silkworm rearing room. |
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| Huang Kewei et al.Studies on the law of occur- rence of cytoplasmic polyhedrosis of the silkworm ( Bombyx mori ) : II .Changes on growth and decline of pathogen of cytoplasmic polyhedrosis existing in surface of floor-soil of silkworm rearing room.[J].Acta Sericologica Sinica,1986(1). |
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| Authors: | Huang Kewei |
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| Institution: | Huang Kewei et al |
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| Abstract: | This experiment examined the fluctuation of the number of the pathogen of cytoplasmic poiyhedrosis in the surface-soil of silkworm-rearing-rooms, in the same silkworm rearing season and in different rearing seasons of the same year, at a countryside location where the cytoplasmic polyhedrosis were historically rampant.The general trends were--(1) In the same silkworm rearing season before disinfection, a targe quantity of pathogen existed and then decline quantitatively after disinfection. As silkworm grew, the number of pathogen accumulated and rose to its peak while mounting. ( 2 ) In different silkworm rearing seasons of this year, existing quantity of pathogen increased with each successive silkworm rearing seasons. |
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| Keywords: | Bombyx mori Cytoplasmic polyhedrosis Pathogen |
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