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目的 探讨贪食库蚊幼虫捕食致倦库蚊幼虫的数量及其对其它蚊虫孳生的影响。方法 人工单个和群体饲养贪食库蚊幼虫 ,计算平均每条捕食的数量 ,并对有和无贪食库蚊孳生的积水进行幼虫密度计数。结果 单个和集体饲养每条四龄贪食库蚊幼虫 2 4h平均捕食四龄致倦库蚊幼虫分别为 5.6和 6 .0条 ;贪食库蚊幼虫不食四龄致倦库蚊幼虫的头壳和呼吸管 ;三龄贪食库蚊幼虫可捕食与之等大的其它蚊幼虫 ,贪食库蚊幼虫之间有相互厮咬现象 ;有贪食库蚊孳生的积水其幼虫密度为 3.3条 /勺 ,且只有一、二龄幼虫 ;无贪食库蚊孳生的积水其幼虫密度为 2 9.7条 /勺 ,可见各期幼虫及蛹。结论 贪食库蚊幼虫可抑制甚至中断其它蚊幼虫的孳生
Objective To investigate the number of predators of Culex pipiens pallens larvae and their effects on the breeding of other mosquitoes. Methods Larvae of M. intermedia were bred individually and in groups, and the average number of each predation was calculated. The density of larvae was also calculated for the accumulated water with and without P. monocytogenes. Results The larvae of Culex pipiens quinquefasciatus larvae at 4-h and 4-h groups were 5.6 and 6.0, respectively, in single and collective feeding. The larvae of Culex pipiens pallens did not eat the heads of Culex pipiens pallens Shell and respiratory tube; third instar louse Culex pipiens larvae can be predatory and other large mosquito larvae, Culex pipiens larvae have mutual Zhesi bite phenomenon; / Larvae, and only one or two instar larvae. The larval density of the stagnant water without P. bulgaricus breeding was 2.97 / spoon, showing larvae and pupae of various stages. Conclusion Culex pipiens larvae can inhibit or even interrupt the breeding of other mosquito larvae