| 湿度对球孢白僵菌和玫烟色虫草田间防治棉蚜效果的影响 |
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| 引用本文： | 葛银银,王滨.湿度对球孢白僵菌和玫烟色虫草田间防治棉蚜效果的影响[J].中国生物防治学报,2022,38(1):172-179. |
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| 作者姓名： | 葛银银 王滨 |
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| 作者单位： | 1. 安徽农业大学微生物防治省重点实验室, 合肥 230036;2. 安徽省黄山市黄山区林业局, 黄山 242700 |
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| 基金项目： | 安徽高校自然科学研究重大项目（KJ2020ZD08）；国家自然科学基金（11008434） |
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| 摘 要： | 本文以超低量喷雾的方式探究了在环境湿度调控下，球孢白僵菌Beauveria bassiana Bb202和玫烟色虫草Cordyceps（=Isaria）fumosorosea Ifu13a在不同应用剂量下对棉蚜Aphis gossypii的田间防效。结果表明，提高环境湿度可明显提高两种昆虫病原真菌对棉蚜的防效。在田间防治后，通过水雾喷施增加环境湿度两天，球孢白僵菌Bb202 1.0×107和1.0×108孢子/mL浓度处理对棉蚜的校正防效分别为64.24%和75.96%，较自然条件下分别提高了24.60%和32.21%；而在相同增湿处理下，玫烟色虫草Ifu13a在1.0×106、1.0×107和1.0×108孢子/mL三个浓度处理下对棉蚜的校正防效分别为50.00%、84.63%和85.45%，较自然条件下分别提高了22.77%、38.28%和22.54%。环境湿度调控可以明显提升球孢白僵菌Bb202和玫烟色虫草Ifu13a菌株对棉蚜的田间控制作用。
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| 关 键 词： | 球孢白僵菌 玫烟色虫草 棉蚜 湿度调控 田间防治 |
| 收稿时间： | 2021-02-22 |
Impact of Humidity on Field Control of the Cotton Aphid,Aphis gossypii by Beauveria bassiana and Cordyceps fumosorosea |
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| GEYinyin,WANG Bin.Impact of Humidity on Field Control of the Cotton Aphid,Aphis gossypii by Beauveria bassiana and Cordyceps fumosorosea[J].Chinese Journal of Biological Control,2022,38(1):172-179. |
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| Authors: | GEYinyin WANG Bin |
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| Affiliation: | 1. Provincial Key Laboratory of Microbial Control, Anhui Agricultural University, Hefei 230036, China;2. Huangshan District Forestry Bureau of Huangshan City, Huangshan 242700, China |
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| Abstract: | In the present study, the field control of the cotton aphid Aphis gossypii by Beauveria bassiana Bb202 strain and Cordyceps (=Isaria) fumosorosea Ifu13a strain was investigated under humidity treatments by ultra-low-volume spray. The results showed that the control of A. gossypii by the two entomogenous fungi was significantly improved by increasing humidity. If humidity was increased by spraying water mist on the plants within two days post field application of the fungi, the control by B. bassiana Bb202 at 1.0×107 and 1.0×108 conidia/mL reached 64.24% and 75.96%, respectively, which was 24.60% and 32.21% higher than that under natural conditions, respectively. In the same way, the field control by C. fumosorosea Ifu13a at 1.0×106, 1.0×107 and 1.0×108 conidia/mL was 50.00%, 84.63% and 85.45%, respectively, which was 22.77%, 38.28% and 22.54% higher than that under natural conditions, respectively. Both B. bassiana Bb202 and C. fumosorosea Ifu13a have good field control of A. gossypii, which can be significantly improved by increasing environmental humidity. |
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| Keywords: | Beauveria bassiana Cordyceps fumosorosea Aphis gossypii humidity regulation field control |
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