| 王雄1, 张慧2, 曾琛3, 黄纯杨4, 叶帅1, 于晓飞5, 刘健锋1, 杨茂发1, 5*.食蚜瘿蚊对葱蚜的捕食作用[J].植物保护,2021,47(6):128-133. |
| 食蚜瘿蚊对葱蚜的捕食作用 |
| Predatory responses of Aphidoletes aphidimyza to Neotoxoptera formosana |
| 投稿时间：2021-02-28 修订日期：2021-03-19 |
| DOI：10.16688/j.zwbh.2021119 |
| 中文关键词: 葱蚜 食蚜瘿蚊 功能反应 生物防治 |
| 英文关键词:Neotoxoptera formosana Aphidoletes aphidimyza functional response biological control |
| 基金项目:安顺市科技计划（安市科农（2020）08号）；贵州省烟草公司遵义市公司成果转化项目（2020xm05, 2021520300200081）; 贵州省烟草公司遵义市公司科技项目（遵烟计［2016］1号）；贵州省科技支撑计划（黔科合支撑（2021）一般205） |
| 作者 | 单位 | E-mail | | 王雄1, 张慧2, 曾琛3, 黄纯杨4, 叶帅1, 于晓飞5, 刘健锋1, 杨茂发1, 5* | 1. 贵州大学昆虫研究所, 贵州山地农业病虫害重点实验室, 贵阳550025
2. 贵州省安顺市植保植检站, 安顺561000
3. 贵州省安顺市普定县植保植检站, 安顺562100
4. 贵州省烟草公司遵义市公司, 遵义 564200
5. 贵州大学烟草学院, 贵阳550025 | E-mail:gdgdly@126.com |
|
| 摘要点击次数: 444 |
| 全文下载次数: 505 |
| 中文摘要: |
| 葱蚜Neotoxoptera formosana (Takahashi)是少数几种为害葱属作物的世界性害虫, 为研究食蚜瘿蚊Aphidoletes aphidimyza (Rondani)对葱蚜的生防潜力, 在室内条件下测定食蚜瘿蚊3龄幼虫对葱蚜不同龄期若蚜的捕食功能、寻找效应、自身密度干扰反应以及捕食偏好性。结果表明, 食蚜瘿蚊3龄幼虫对葱蚜不同龄期若蚜的捕食功能反应均符合Holling Ⅱ功能反应类型, 对1~2、3、4龄若蚜的瞬时攻击率(a)分别为0.471、0.295、0.619; 处理时间(Th)分别为0.041、0.094、0.051 d; 搜寻效应均随着葱蚜密度的增加而降低; 食蚜瘿蚊3龄幼虫对葱蚜的日均捕食量随着自身密度的增加而显著增加, 而单头捕食量随着自身密度的增加而显著减少, 其自身密度干扰方程为E=0.169 6P-0.464; 在同一空间相同密度条件下, 食蚜瘿蚊3龄幼虫偏好捕食葱蚜4龄若蚜(选择系数Q=1.7), 对其他龄期若蚜无选择偏好性。综上所述, 食蚜瘿蚊3龄幼虫对葱蚜具有较好的防控潜力, 且对高龄若蚜的防控效果较佳, 在田间应用时需结合蚜虫发生情况确定食蚜瘿蚊的最佳释放量。 |
| 英文摘要: |
| Neotoxoptera formosana (Takahashi) is one of several global pest species that can harm Allium crops. In order to clarify the biocontrol potential of the predatory gall midge Aphidoletes aphidimyza (Rondani) against N.formosana, we tested the predatory functional response, searching efficiency, intraspecific interference effect and predation preference of the 3rd instar larvae of A.aphidimyza against different instars of N.formosana nymphs. The results showed that the predatory functional response of A.aphidimyza 3rd instar larvae on different instars of N.formosana nymphs fitted well with the HollingⅡmodel. The instantaneous attack rates (a) of 1st-2nd, 3rd and 4th instar nymphs were 0.471, 0.295 and 0.619, respectively, with a handling time (Th) of 0.041, 0.094 and 0.051 d, respectively. The searching efficiency of A. aphidimyza decreased with increasing density of N. formosana. The average daily predation of 3rd instar larvae of A. aphidimyza on N. formosana increased significantly with increasing density of A. aphidimyza larvae, while the predation quantity of individual decreased significantly with increasing density of A. aphidimyza larvae. The interference equation was E=0.1 696P-0.464. Under the same density within the same space, the 3rd instar larvae of A.aphidimyza preferred to feed on the 4th instar nymphs (Q=1.7) of N.formosana, but there was no preference for other instars of N. formosana nymphs. Our results indicated that A. aphidimyza had a good control potential for N.formosana, especially for older nymphs. It is necessary to determine the best release amount of A. aphidimyza according to the occurrence of N. formosana in the field. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
