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采用混合饲养法详细研究了赤拟谷盗与锯谷盗不同虫态间的竞争作用.研究结果表明,赤拟谷盗雌性、雄性成虫的存在对锯谷盗的卵孵化、幼虫化蛹及蛹羽化为成虫的过程均有显著的抑制作用,且相同数量的雌、雄成虫的作用大致相同,另其抑制作用随成虫数量的增多而增强,但赤拟谷盗幼虫对锯谷盗卵孵化及蛹羽化为成虫的过程均无显著影响,面粉的加入量仅在锯谷盗幼虫化蛹的过程中影响显著.锯谷盗雌性、雄性成虫以及幼虫的存在对赤拟谷盗的卵孵化、幼虫化蛹及蛹羽化为成虫的数量影响不大,与对照组比较无显著差异,仅当面粉加入量为0.5g时,锯谷盗成虫、幼虫对赤拟谷盗的卵孵化过程有显著影响.本研究结果表明在相同环境中,赤拟谷盗种群比锯谷盗种群具有更强的竞争优势.
The mixed feeding method was used to study in detail the competition between different species of Brassica campestris and Sawgrass, and the results showed that the female and male adults of Brassica chinensis had hatching eggs, larvae pupation and pupa The process of emergence into adults were significantly inhibited, and the same number of female and male adult role is roughly the same, and the other inhibition increases with the increase in the number of adults, There were no significant effects of pupae emergence into adults, and the addition of flour had a significant effect only during larval pupation of sawfly. The presence of female, male adult and larvae of Sawgrass on egg hatching, There was no significant difference between adult pupae and pupae emergence adults, and no significant difference compared with the control group. Adults and larvae of Sawgrass saw eggs significantly affected egg hatching only when the amount of flour added was 0.5g. The results of this study indicate that in the same environment, Tribolium population has a stronger competitive advantage than Sawethis population.