论文部分内容阅读
通过两年的系统调查及数据资料分析 ,明确了国槐行道树叶螨的种群消长与环境因子有着密切的关系 :高温干燥的气候是叶螨猖獗为害的决定因子 ;持续 2 5℃以上的日均温度和 70 %以下的空气湿度是叶螨种群急剧上升的最适条件 ;连阴雨及其产生的高湿天气对叶螨种群有明显的抑制作用 ,而大雨、暴雨、冰雹和急剧降温天气对叶螨有显著的冲刷和杀伤作用 ;叶螨种群消长也会受到寄主营养及天敌等生物因子的影响
Through two years of systematic investigation and data analysis, it is clear that the population growth and decline of tree mites are closely related to the environmental factors. The climate with high temperature and dryness is the decisive factor for the spider mites being rampant. The daily average of more than 25 ℃ Temperatures and air humidity below 70% are the most suitable conditions for spider mite population to rise sharply. Even the rainy days and the high humidity caused by the rainy days can obviously inhibit the population of spider mites, while the effects of heavy rain, heavy rain, hail and rapid cooling weather on spider mites There is a significant erosion and killing effect; spider mite population growth and also by the host nutrition and natural enemies and other biological factors