摘要： 采用常规叶面喷雾法研究了HFW-05菌株在蔬菜上的宿存情况.在施菌前对白僵菌、细菌和放线菌进行本底调查.以2.5×10⁷个孢子/mL浓度间隔5 d连续喷药3次后,2个月内,白僵菌在不同寄主植物中的成菌落数呈波浪状.白僵菌在不同作物叶片表面的最终宿存量在10⁶ cfu/g水平,在叶肉中的最终宿存量在10³ cfu/g水平.同时,白僵菌的释放对环境细菌、放线菌种群数量影响不明显,不会破坏原有的生态平衡.

关键词: 球孢白僵菌, 番茄, 洋白菜, 宿存

Abstract: This paper studied using conventional foliar spray HFW-05 strain vegetables on persistent condition. Before applying Bassiana fungus,bacteria and actinomycetes background was investigated.It used 2.5×10⁷ spores/mL concentration for three consecutive times,each time interval 5 d.The results showed Beauveria bassiana on different host plants into colonies wavy within two months.On the surface of different crop leaves, Beauveria bassiana eventually reached 10⁶ cfu/g in fresh leaves eventually persistent stock level.The final persistent quantity of Beauveria bassiana in mesophyll of fresh leaf level reached 10³ cfu/g.Meanwhile,the environmental release of Beauveria bacteria,actinomyces quantitative impact was not obvious,does not destroy the original ecological balance.

Key words: Beauveria bassiana, Tomato, Cabbage, Persistent

中图分类号: 

• S476.12