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试验研究了不同饥饿程度的龟纹瓢虫雌、雄成虫对烟蚜的捕食作用 .结果表明 ,不同饥饿程度的龟纹瓢虫雌、雄成虫对烟蚜捕食的功能反应均为HollingⅡ型 ,雌成虫的瞬间攻击率a大于雄成虫 ;不同饥饿程度的龟纹瓢虫雌、雄成虫在 2 4h内对烟蚜的捕食量差异不显著 ;雌成虫捕食量大于雄成虫 ;饥饿时间愈长 ,烟蚜密度愈大 ,雌雄成虫间捕食量差异愈显著 ;未饥饿的龟纹瓢虫雌、雄成虫在 2 4h内对烟蚜的捕食行为集中在 6 0 0～18 0 0 ,雌雄成虫间的捕食速度 (V)差异不显著 ;饥饿 48h的龟纹瓢虫雌、雄成虫在 2 4h内对烟蚜的捕食行为集中在试验开始后的 0～ 4h ,雌雄成虫间的捕食速度 (V)差异也不显著 .
The effects of different levels of starvation on the predation of female and male adult Myzus persicae were studied.The results showed that the female and male adults of Hollyfly The instantaneous attack rate of adult a was greater than that of male adult. The female and male adults of different sizes had no significant difference in the predation amount of the female in the first 24 h. The female predation was larger than that of male adults. The longer the starvation, The greater the density of the aphids was, the more obvious the difference was in the predation between the male and female adults. The predation behavior of the female and male adults of unripe Propylaea japonica on the Myzus persicae within 2 4h concentrated on the predation between male and female adults (V). The predation behavior of female and male adults of Mythicochromis patens 48h after feeding for 4h was 0 ~ 4h after the start of the experiment, and the difference in the predation rate (V) between the male and female adults Not obvious .