摘要
通过探讨柑桔始叶螨及其重要天敌尼氏钝绥螨的田间消长规律，发现柑桔始叶螨在４月下旬～５月上旬形成高峰，之后数量剧减。尼氏钝绥蟥种群高峰期相对滞后，一般在６月份形成高峰，此后种群数量一直较高。根据室内饲养资料，组建了柑桔始叶螨和尼氏钝绥螨的种群繁殖特征生命表，求出了内禀增长率等重要生命参数，并研究了它们的生物学和生态学特性，结果表明，柑桔始叶螨和尼氏钝绥螨均属聚集分布，尼氏钝绥螨具有繁殖快、捕食量大、捕食能力强等特性，对柑桔始叶螨能起到明显的制约作用。
This paper deals with the fluctuation rule of Eotetranychus kankitus and its important natutal cnemy, Amblyseius nicholsi in the fields. The results show that E. Kankilus a peak from late April to early May, then the population amount decrease rapidly. A. nicholsi has a peak in June and the quantity remains relatively high in autumn. The reproductive tables of E. kankitus and A. nicholsi have ben made,the innate capacity for increase (rm) and other important life parameters have ben caculated. The biological and ecological characteristies of the mites have ben studied,the results show that the distribution patterns of E. kankitus and A. nicholsi are aggregating distribution, A. nicholsi has a high reproductive rate and predation,and is considered of importance in the control of E. kankitus.
关键词
柑桔始叶螨
尼氏钝绥螨
消长规律
Eotetranychus kankitus
Amblyseius nicholsi
fluctuation rule
biological characteristic
