| 昆虫病原线虫抗干燥能力及其对梨小食心虫致死能力研究 |
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| 引用本文： | 李宁,王志刚,阎爱华,王勤英,黄大庄,毕拥国,马向超.昆虫病原线虫抗干燥能力及其对梨小食心虫致死能力研究[J].河北农业大学学报,2011,34(2):90-93. |
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| 作者姓名： | 李宁 王志刚 阎爱华 王勤英 黄大庄 毕拥国 马向超 |
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| 作者单位： | 1. 河北农业大学林学院,河北保定,071001
2. 河北农业大学植物保护学院,河北保定,071001 |
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| 基金项目： | 北方果树综合防控技术研究与示范推广(201103024) |
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| 摘 要： | 为筛选出抗干燥能力较强的昆虫病原线虫,采用小空间控制饱和盐液法测定了10个昆虫病原线虫品系的抗干燥能力,结果表明:不同昆虫病原线虫品系抗干燥能力不同.在25℃、相对湿度50.5%的小空间控制器中处理9 h后,Steinernema carpocapsae GA品系的存活率最高,达到75.1%,且复苏后线虫对大蜡螟致死率...
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| 关 键 词： | 昆虫病原线虫 抗干燥 梨小食心虫 |
Anti-desiccation ability of several entomopathogenic nematode strains and their pathogenity to Grapholitha molesta |
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| LI Ning,WANG Zhi-gang,YAN Ai-hua,WANG Qin-ying,HUANG Da-zhuang,BI Yong-guo,MA Xiang-chao.Anti-desiccation ability of several entomopathogenic nematode strains and their pathogenity to Grapholitha molesta[J].Journal of Agricultural University of Hebei,2011,34(2):90-93. |
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| Authors: | LI Ning WANG Zhi-gang YAN Ai-hua WANG Qin-ying HUANG Da-zhuang BI Yong-guo MA Xiang-chao |
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| Institution: | LI Ning1,WANG Zhi-gang1,YAN Ai-hua1,WANG Qin-ying2,HUANG Da-zhuang1,BI Yong-guo1,MA Xiang-chao1(1.College of Forestry,Agricultural University of Hebei,Baoding 071001,China,2.College of Plant Protection,China) |
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| Abstract: | In order to screen out the higher anti-desiccation ability of entomopathogenic nematodes,the anti-desiccation ability of 10 entomopathogenic nematodes strains were evaluated in a desiccator containing saturated salt solution.The results showed that their anti-desiccation ability varied between different nematode strains.Steinernema had a higher survival rate when treated at 25 ℃ and RH of 50.5% for 9 h than Heterorabditis,S.carpocapsae GA has the highest survival rate of 75.1%.And the mortality rate to mellonella of recovery nematodes is 100%.Heterorhabditis sp.CZ and XH-9 strain survival rate is 0.By using several higher anti-desiccation ability strains,the pathogenity of the entomopathogenic nematode to the Grapholitha molesta was also determined.The results indicated that ZH has strong virulence to Grapholitha molesta,and LT50 is 2.46 d. |
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| Keywords: | entomopathogenic nematodes anti-desiccation ability Grapholitha molesta |
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