| 刘冬梅1, 王凤英2, 廖世纯2*, 古雅良3, 伍国樑1, 李彦彦3, 涂海莲3, 吕斌3.低温胁迫对荔枝蒂蛀虫幼虫存活和发育的影响[J].植物保护,2021,47(6):166-173. |
| 低温胁迫对荔枝蒂蛀虫幼虫存活和发育的影响 |
| Effects of low-temperature stress on the survival and development of the litchi fruit borer |
| 投稿时间：2020-08-25 修订日期：2020-10-14 |
| DOI：10.16688/j.zwbh.2020453 |
| 中文关键词: 荔枝蒂蛀虫 低温胁迫 存活率 发育历期 |
| 英文关键词:Conopomorpha sinensis low temperature stress survival rate developmental duration |
| 基金项目:2017年自治区主席科技资金专项科技计划（19290-04）; 国家现代农业产业技术体系广西荔枝龙眼创新团队病虫害防治岗位（nycytxgxcxtd-12-03）; 广西农业科学院基本科研业务费专项(桂农科2021YT064) |
| 作者 | 单位 | E-mail | | 刘冬梅1, 王凤英2, 廖世纯2*, 古雅良3, 伍国樑1, 李彦彦3, 涂海莲3, 吕斌3 | 1. 广西钦州农业学校, 钦州535000
2. 广西壮族自治区农业科学院植物保护研究所, 广西作物病虫害生物学重点实验室, 南宁530007
3. 广西钦州市农业科学研究所, 钦州535000 | E-mail:liaoshichun@126.com |
|
| 摘要点击次数: 464 |
| 全文下载次数: 279 |
| 中文摘要: |
| 荔枝蒂蛀虫Conopomorpha sinensis是为害荔枝龙眼的重要害虫，以幼虫越冬。了解其幼虫经历低温胁迫后的存活率和发育历期有助于预测其种群数量动态。本研究于室内测定荔枝蒂蛀虫幼虫在不同低温条件下（5、10℃和15℃）处理1、3、5、7、10 d和15 d的存活率和发育历期及其对蛹和成虫发育的影响。结果表明，幼虫在5℃下处理1 d、3 d其存活率分别为48.54%和35.79%，分别为对照的1/2、1/3；10℃下处理7 d存活率为41.75%，降为对照的1/2。幼虫在5℃下处理3 d后蛹的存活率为45.95%，降至对照的1/2；10℃和15℃处理15 d降为31.11%和30.61%，约为对照的30%左右。幼虫历期在5℃处理3 d（8.14 d）、10℃处理5 d (8.43 d)和15℃处理7 d (9.32 d)时均可达对照的2倍。3种低温条件均造成荔枝蒂蛀虫蛹历期和成虫寿命缩短。由此可见，冬春季5~15℃的低温会引起荔枝蒂蛀虫幼虫和蛹存活率显著降低以及不同虫态历期的异常变化，可导致荔枝蒂蛀虫的虫源减少。 |
| 英文摘要: |
| The litchi fruit borer, Conopomorpha sinensis Bradly, is an important pest of litchi and longan. It overwinters as larvae.Understanding the survival rate and developmental period of the larvae after low-temperature stress would help to predict the population dynamics. In this study the survival rates and developmental durations of C.sinensis larvae were determined by treating the larvae at 5, 10℃ and 15℃ in the laboratory for 1, 3, 5, 7, 10 d and 15 d, and the effect of the treatments on the development of pupae and adults was also investigated. The survival rates of larvae were 48.54% and 35.79%, when larvae exposed to 5℃ for one day and three days, respectively, which were only 1/2 and 1/3 of that of the control group; and the survival rate was 41.75% (1/2 of that of the control group) when the larvae were treated at 10℃ for seven days. The survival rate of pupae dropped to 45.95% (1/2 of that of the control group) when the larvae was treated at 5℃for three days, and it dropped to 31.11%和30.61% (about 30% of that of the control group) when the larvae were treated at 10℃ or 15℃ for 15 d. The larval durations were 8.14, 8.43 d and 9.32 d, when larvae were treated at 5℃ for three days, 10℃ for five days and 15℃ for seven days, respectively, which were twice as much as that of the control group. Pupal duration and adult lifespan of C.sinensis were all shortened after treatment at 5, 10℃ and 15℃. It indicated that, in winter and spring when the temperature is in the range of 5-15℃, the survival rates of C.sinensis larvae and pupae will be significantly reduced, leading to abnormal development of insect and a decrease of the C.sinensis populations size. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
