In order to determine the functional response of Neoseiulus barkeri (Hughes)on the 1st instar nymphs of Frankliniella occidentalis Pergande,the predation was examined at five constant temperatures (16,20,24,28 and 32℃) under the laboratory conditions (RH 85%±5% and photoperiod L∥D=16 h∥8 h).The results showed that the preda-tory functional response fitted Holling typeⅡmodel.At the range of 16 28℃,the attack index (a ),the a/T h value and the maximum predatory capacity (1/T h )of N.barkeri increased with the temperature,and the average treatment time decreased.The maximum predatory capacity was 14.471 8 individuals per day,while the minimum handling time was 0.069 1 day at 28℃.The maximum daily predatory capacity reduced when the temperature was above 32℃.The av-erage daily predatory capacity decreased with the increase of predator density when prey density was fixed,which indica-ted that predator competition and interference were obvious as prey density was fixed.%为明确巴氏新小绥螨[Neoseiulus barkeri (Hughes)]对西花蓟马[Frankliniella occidentalis (Pergande)]初孵若虫的捕食效应,在相对湿度 RH 85%±5%,5个温度梯度16、20、24、28、32℃,光照 L∥D=16 h∥8 h 条件下选取西花蓟马的初孵若虫进行捕食功能反应。结果表明:巴氏新小绥螨对西花蓟马初孵若虫的捕食功能反应属于HollingⅡ型方程。在16~28℃温度范围内,巴氏新小绥螨对西花蓟马初孵若虫的攻击系数、捕食能力、最大日捕食量均随温度升高而增加,处理时间则缩短,28℃时日捕食量最高达14.4718头,处理时间最短为0.0691 d。温度达到32℃时,捕食量下降。当西花蓟马初孵若虫的种群密度一定时,巴氏新小绥螨的平均捕食量随其自身密度的增加而降低。说明猎物密度固定时巴氏新小绥螨存在明显的相互干扰作用。
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机译:Effect of Neoseiulus cucumeiris Carrying Paecilomyces fumosoroseus on the Prevention of Aphids and Spider Mites in Eggplant利用胡瓜新小绥螨携带玫烟色拟青霉菌兼防茄子蚜虫和叶螨