摘要
从生物学和生态学特性方面探讨了影响异色瓢虫种群数量的因子，研究表明，温湿度、食物充足程度、自残习性以及农药的使用等方面都对异色瓢虫种群数量产生影响：最适温度为20～30℃；食物短缺情况下，具有自残习性；施用杀虫剂，直接影响其捕食能力和成活率。
Influencing factors for population of ttarmonia axyridis were discussed from aspects of biological ＆ ecological characteristics. Result shows that temperature ＆ humidity, degree of sufficient food supply, self-inflicted characteristics as well as the use of pesticides etc. all have influences on population ： optimum temperature is 20-30 ℃ ; in the case of shortage of food, they have self-inflicted characteristics ; applying insecticides influence their predation capacity ＆ survival rate.
出处
《防护林科技》
2010年第2期37-39,共3页
Protection Forest Science and Technology
关键词
异色瓢虫
生物学特性
种群数量
Harmonia axyr/d/s
biological characteristics
population
