南京林业大学学报(自然科学版) ›› 2006, Vol. 30 ›› Issue (01): 105-108.doi: 10.3969/j.jssn.1000-2006.2006.01.027

• 研究简报 • 上一篇    下一篇

柳杉毛虫高毒力白僵菌Bbd3菌株的筛选及应用

蔡国贵   

  1. 福建省森林病虫害防治检疫总站, 福建 福州 350003
  • 出版日期:2016-03-28 发布日期:2016-03-28

Screening and Application Study of Beauveria bassiana Bbd3 Strain with High Virulence to Dendrolimus houi Lajonquiere

CAI Guo-gui   

  1. General Station of Forest Diseases and Insect Pests Control and Quarantine of Fujian Province, Fuzhou 350003, China
  • Online:2016-03-28 Published:2016-03-28

摘要: <正>利用膨胀混凝土在结构中产生一定的预压应力来抵抗混凝土收缩变形产生的拉应力,从而防止或减小超长混凝土结构在施工阶段,由于温度的变化产生较大的温度应力引起的收缩裂缝,通过合理布置膨胀加强带以取代后浇带,从而达到连续浇筑的目的。结合具体工程,介绍了超长混凝土的无缝设计与施工的具体应用。

Abstract: The eight strains, isolated from Dendrolimus houi Lajonquiere poisoned by Beauveria bassiana, were screened by their growth properties in the media, powder quality of large-scale produce and indoors and outdoors toxicity tests. Bbd3 and Bbd6 had high virulence to Dendrolimus houi Lajonquiere, which mycelium grew fast and the time and output of spore production were short and high. Bbd3 was the most superior strain, and it was large-scale produced and applied widely. The average sporulation was 3.09×10 10cfu/g, and the average germination was 99.1%. The average control effect was over 92 %.

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