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| 短时低温对茶黄蓟马发育与繁殖的影响 |
| Effects of short-term low temperature on development and reproduction of Scirtothrips dorsalis Hood |
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| DOI： |
| 中文关键词: 茶黄蓟马 短时低温 发育 繁殖 |
| 英文关键词:Scirtothrips dorsalis short-term low temperature development reproduction |
| 基金项目:海南省自然科学基金（320RC693）；中央级公益性科研院所基本科研业务费专项（1630042017020）；中国热带农业科学院“揭榜挂帅”项目（1630042022007） |
| Author Name | Affiliation | | HAN Dong-Yin, XING Chu-Ming, LI Lei, ZHANG Fang-Ping, CHEN Jun-Yu, WANG Jing-Yun, FU Yue-Guan | Environment and Plant Protection Institute, Chinese Academy of Tropic Agricultural Sciences,Key Laboratory of Integrated Pest Management on Tropical Crops,Ministry of Agriculture and Rural Affairs/Hainan Key Laboratory for Monitoring and Control of Tropical Agricultural Pests, Haikou 571101, China |
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| 中文摘要: |
| 蓟马是芒果的重要害虫，为探明短时低温对蓟马发育与繁殖的影响，以为害芒果的蓟马优势种茶黄蓟马Scirtothrips dorsalis为对象，将其放置于8℃和12℃（RH 75%±10%, 12 L∶12 D）人工气候箱内，分别处理6 h、12 h及24 h，观察若虫的存活率、发育历期及成虫寿命和繁殖力。结果表明：短时低温暴露对茶黄蓟马若虫的发育历期有一定的影响，不同龄期对低温的响应有所不同，若虫期经历短时低温会显著降低成虫寿命；短时低温暴露对所处理龄期及世代的存活能力均造成显著影响，处理温度越低时间越长，存活率下降越显著，其中2龄若虫在8℃下处理24 h，若虫期的累计存活率最低，仅6.86%。结果说明短时低温暴露后对成虫寿命和产卵量均产生不利的影响，处理温度越低时间越长，影响越大。 |
| 英文摘要: |
| Thrips are important insect pests in mango orchards. In order to investigate the effect of short-term low temperature on the development and reproduction of thrips, the dominant species Scirtothrips dorsalis Hood was selected to expose to 8℃ and 12℃ (RH 75%±10%, 12 L∶12 D) for 6 h, 12 h and 24 h, respectively. The survival and developmental duration of S. dorsalis larvaes, the lifespan and fecundity of S.dorsalis adults were observed. The results showed that short-term low temperature significantly affected the developmental duration of S. dorsalis nymphs and different instar S.dorsalis had different responses. The nynphs exposed to short-term low temperatures significantly reduced the lifespans their adults. The short-term low temperatures also influenced the generation survival. The survival rates significantly decreased with the increase of the exposure time of low temperature. The second instar nymph exposed to 8℃ for 24 h resulted in the lowest cumulative survival rate in the whole nymph stage, which was 6.86%. The exposure of short-term temperature was adverse to the lifespan and fecundity of S.dorsalis adults. The results indicated that the longer the exposure of short-term low temperature, the greater the influence. |
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