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采用田间调查和室内饲养的方法,研究了黑带食蚜蝇Syrphusbalteata的生物学特性和捕食作用。结果表明,该虫每年发生5代,以蛹在土壤中越冬,7~8月则以3代蛹越夏,各龄幼虫对蚜虫的功能反应均为Holling-Ⅱ型,随着幼虫的生长,其捕食量逐渐增大。
The biological characteristics and predation of Syrphus balteata were studied by field investigation and indoor rearing. The results showed that the insects occurred five generations per year, the pupae overwintered in the soil, and the third instar pupae became more summer from July to August. The functional responses of all larvae to aphids were Holling-Ⅱ. As the larvae grew, The predation amount increases gradually.