| 孙莉，陈达嵩，陈霞，郑月琼，郑晨昕,2022,温度对以截形叶螨为猎物的Typhlodromips montdorensis(Schicha)生长发育及捕食能力的影响[J].环境昆虫学报,(5):1278-1284 |
| 温度对以截形叶螨为猎物的Typhlodromips montdorensis(Schicha)生长发育及捕食能力的影响 |
| Effects of temperature on development and predation ability of Typhlodromips montdorensis (Schicha)(Acari: Phytoseiidae) prey on Tetranychus truncates (Ehara) |
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| DOI： |
| 中文关键词: Typhlodromips montdorensis (Schicha) 生物防治 截形叶螨 温度 发育历期 捕食作用 |
| 英文关键词:Typhlodromips montdorensis (Schicha) biological control Tetranychus truncates (Ehara) temperature developmental period predation ability |
| 基金项目:国家重点研发计划（2021YFD1400800）;福建省自然基金(2020J011355)；福建省省属公益类科研专项(2020R1024001，2020R1024006)；科技创新团队建设（CXTD2021016）；5511项目（XTCXGC2021011）；福建省农业科学院农业科技专项（YDXM2021002，ZYTS2021005） |
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| 中文摘要: |
| Typhlodromips montdorensis是烟粉虱Bemisia tabaci、蓟马、叶螨等多种害虫（螨）的优良天敌，为明确温度因子对T. montdorensis生长发育及捕食能力的影响。本文通过比较不同温度条件下T. montdorensis捕食截形叶螨Tetranychus truncates的存活率、发育历期及捕食能力，分析其发育速率及功能反应与温度的关系，探讨温度因子对T. montdorensis作为天敌生物防治应用的影响。结果显示，温度对T. montdorensis各螨态的存活率和发育历期均有显著影响；T. montdorensis以截形叶螨为猎物时，15℃低温条件下卵孵化只有20%，若螨I期时全部死亡，不能正常完成生长发育；20~30℃存活率都达90%以上，30℃存活率最高为92.50%；而在35℃温度条件下死亡率增高，存活率仅达70%；在20~35℃温度范围内，发育历期与温度呈负相关关系，采用线性日度模型能较好地描述T. montdorensis各螨态的发育速率在20~35℃温度范围内随温度升高而加快的现象。T. montdorensis不同发育阶段的发育起点温度和有效积温均不同，若螨II的发育起点温度最低为11.24℃，卵的发育起点温度最高为15.47℃；而有效积温则以幼螨最低为14.84日·度；未成熟期发育起点温度和有效积温分别为12.56℃和88.99日·度。T. montdorensis对截形叶螨的捕食功能反应符合Holling II 型圆盘方程，在20~30℃范围内，处理猎物时间随着温度的上升而缩短，单位时间攻击率、捕食量和控制能力随着温度的上升而增强；即在20~30℃范围内，温度越高T. montdorensis具有更高的捕食效能。研究结果可为天敌T. montdorensis的人工繁殖及生产实践中生物防治应用提供理论基础。 |
| 英文摘要: |
| The predacious mite Typhlodromips montdorensis is an important natural enemy of potential importance in biological control of many pest and spider mites. In order to clarify the influence of temperature factors on the development and predation ability of T. montdorensis， the survival rate, development and predation ability of T. montdorensis under different temperature conditions were compared with Tetranychus truncates as its prey, and the relationship between growth rate, functional reaction and temperature was analyzed respectively. The results showed that temperature significantly affected the developmental period of T. montdorensis. The development of T. montdorensis was abnormal at constant temperature of 15℃, only 20% of the eggs hatched and all died during nymphs stage at 15℃; survival rate was more than 90% at 20~30℃, the highest survival rate was 92.50% at 30℃, but survival rate was only 70% at 35℃. In the range of 20~35℃, development duration has a negative correlation with temperature, and the linear diurnal model can better describe the phenomenon that development rate of each mite state of T. montdorensis accelerates with the increase of temperature. T. Montdorensis had different developmental threshold of temperature and effective thermal summation at each developmental stage; deutonymph stage had the lowest developmental threshold of temperature, was 11.24℃, and egg stage had the highest developmental threshold of temperature, was 15.47℃, and the lowest effective thermal summation was 14.84 degree-days for larva, the developmental threshold of temperature of the immature stage was 12.56℃, and the effective thermal summation of immature stage was 88.99 degree-days. The results showed functional responses of T. montdorensis to T. truncates approximated Holling type II at the temperature of 20~30℃, treatment time of prey decreased with the increase of temperature, and attack rate, predation amount and control ability increased with the increase of temperature; That is, in the range of 20~30℃, with higher the temperature, T. montdorensis had higher predation efficiency. These results will help to evaluate the potential of T. montdorensis as a biological control agent against pest and spider mites. |
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