Studies on the control of alien invasive plant Macfadyena unguis-cati with ecological substitution
2005
Lu Chengyi, Hu Hongyou, Zhang Mingqiang
Chinese. 在厦门市鼓浪屿受外来入侵植物猫爪藤危害严重地段，开展了人工清除结合生态替代根除猫 爪藤的研究。结果表明：猫爪藤具有很强的无性繁殖能力，大于10 g重的块根成活率达100 %。地下部生物量有97.1%集中在地表0～40cm土层中。采取清除地上部分，并挖除地下40 cm深根系的方法，1年后株防效达71.5%。为防止地下残存块根的再次萌发扩展，人工清除后种植白蝶合果芋、细叶萼距花形成密集植被可限制猫爪藤萌生和生长。每年3～6月是防除猫爪藤的最佳时间.
Show more [+] Less [-]English. Experiments on control of invasive plant Macfadyena unguis-cati with ecological substitution have been performed in the place located in the Gulangyu Island in Xiamen, where is seriously damaged by Macfadyena unguis-cati_(L.) A.Gentry. The result shows that M. unguis-cati_ has strong asexuality reproduce capacity. The roots of _M. unguis-cati，which weigh more than 10 g，can germinate 100 percentage. 97.1 percentage of the biomass below_ground concentrates on the earth from 0 cm to 40 cm. Hand control is proved effective to some extent which is to exterminate the above_ground part completely and the below round roots to 40 cm depth. To avoide the regrowth of the survival below ground roots, the ecological substitution is necessary. After removing, the regenerati on of _M. unguis-cati could be prevented by planting other plants by occupying the space, such as Syngonium podophllum and Cuphea hyssopifolia. The best time to control and remove M. unguis-cati_ is from March to June every year.
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