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对福州郊区菜心田害虫种群的生态位进行了初步研究。结果表明,黄曲条跳甲、小菜蛾和蚜虫为秋季菜心田最主要的害虫。不同害虫的生态位上存在明显分化,黄曲条跳甲在时间生态位上占有较多资源,小菜蛾则在空间生态位上占有相当多资源。并分析探讨了田间不同害虫种群混合发生的竞争机制及相应的害虫控制策略。
The niche of the population of vegetable heart pests in Fuzhou was studied. The results showed that the yellow tick beetle, diamondback moth and aphids were the main pests in autumn. There were obvious differences in the niche of different pests, while the yellow beetle had more resources in the niche of time and Plutella xylostella occupied considerable resources in space niche. The competitive mechanism of pest population mixing in field and corresponding pest control strategy were analyzed.