【作者】 占世河； 罗肖南；

【Author】 Zhan Shihe Luo Xiaonan (Department of Plant Protection,Fujian Agricultural College)

【机构】 福建农学院； 南平地区农业局；

【摘要】 整胸寡节瓢虫和四川寡节瓢虫的成虫和幼虫,均能捕食多种盾蚧,尤其喜食盾壳疏松的虫态。日均最多捕食量,成虫为35.64和37.3只,三龄幼虫为17.38和19.86只。成虫的捕食量大于幼虫。四川寡节瓢虫的捕食量大于整胸寡节瓢虫。整胸寡节瓢虫的成虫。四龄幼虫和二龄幼虫对矢尖蚧二龄幼蚧的捕食功能反应方程分别为:Na=0.8900N/1+0.00808N;Na=0.8355N/1+0.00785N;Na=0.6511N/1+0.00677N。都属于HollingⅡ型的功能反应。更多还原

【Abstract】 Both adults and larvae of Telsimia emarginata and T.sichuanensis could prey on many species of armored scales,but preferred to nymph individuals,whose scales are looser.The daily maximun amount of the scale insects preyed by the adult ladybirds were 35.64 and 37.3,that by larvae were 17.38 and 19.86 respectively.The amount preyed by T. sichuanensis was more than that by T.emarginata.The functional reaction equations that adult,4th instar and 2nd instar of T.emarginata preyed on 2nd instar of Unaspis yanonensis Kuwana were Na=0.8900N/1+0.00808N,Na=0.8365N/1+0.00785N, Na = 0.6511N/1+0.006777N respectively.All equations belong to the functional reaction of HollingⅡphase.更多还原