| 尹园园, 翟一凡, 林清彩, 于 毅, 郑 礼, 陈 浩*.周期性高温对丽蚜小蜂田间应用效果的影响[J].植物保护,2019,45(3):115-118. |
| 周期性高温对丽蚜小蜂田间应用效果的影响 |
| Impacts of periodic heat events on the application of Encarsia formosa |
| 投稿时间：2018-05-31 修订日期：2018-07-19 |
| DOI：10.16688/j.zwbh.2018230 |
| 中文关键词: 周期性高温 丽蚜小蜂 田间应用 |
| 英文关键词:periodically high temperature Encarsia formosa field application |
| 基金项目:山东省重大科技创新工程(2018CXGC0206); 国家重点研发计划政府间国际科技创新合作重点专项(YS2017YFGH000664); 国家重点研发计划(2017YFD0201000)；山东省农业科学院农业科技创新工程（CXG2018E04） |
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| 中文摘要: |
| 为了探究高温逆境条件下丽蚜小蜂在田间的释放效果及高温对丽蚜小蜂生长发育、生殖及存活的影响, 设计了田间及室内验证试验。在夏季高温季节监测棚内温度, 并释放丽蚜小蜂, 测定其对粉虱的防治效果。在室内周期性重复高温(26、30、35、40、45℃), 测定高温对丽蚜小蜂羽化率、寿命及产卵量的影响。结果表明, 夏季高温季节释放丽蚜小蜂, 其对粉虱的控制效果较差, 并且在田间寄生率较低。温度升高, 丽蚜小蜂蛹羽化率、寿命及产卵量均随之降低。26~45℃丽蚜小蜂羽化率从93.45%降至0; 寿命从13.55 d下降至1 d; 产卵量从92.05头下降至0头。繁育丽蚜小蜂的温度最好控制在30℃以下; 在田间应用过程中棚内温度不要长时间保持在35℃以上, 否则严重影响丽蚜小蜂的应用效果。 |
| 英文摘要: |
| To understand the control effect of Encarsia formosa on whitefly in greenhouses under heat stress and the effect of heat stress on the growth behavior of E. formosa, we designed experiments inside and outside the laboratory. We monitored temperature of greenhouse in summer and applied E. formosa to control whitefly. In addition, we conducted an experiment to understand the impacts of periodic repeated heat events on the emergence rate, longevity, fecundity of E. formosa. The results showed that the control effect of E. formosa to whitefly was poor during the summer. E. formosa had a low parasitic rate in the field. The emergence rate, longevity, fecundity of E. formosa decreased significantly with the increase of temperaturE. At 26-45℃, the emergence rate of E. formosa decreased from 93.45% to 0, and the longevity decreased from 13.55 d to 1 d, while the fecundity decreased from 92.05 to 0 individual. The highest temperature should be below 30℃ when breeding E. formosa; the temperature in the greenhouse shouldn’t be above 35℃ for a long time when applying E. formosa; otherwise, it might affect the application of E. formosa. |
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