贵州南部山区紫茎泽兰的替代控制研究

Biological substitution control of Eupatorium adenophorum Spreng.in the southern mountainous regions of Guizhou Province

在贵州南部山区紫茎泽兰Eupatorium adenophorum Spreng入侵地,选取马尾松Pinus massoniana、板栗Castanea mollissima、苦楝Melia azedarach、麻竹Dendrocalamus latiflorus、桉树Eucalyptus robusta和麻疯树Jatropha curcas等6种树种,采取直接替代和综合替代的方法,连续4 a对紫茎泽兰进行替代控制研究。结果表明,乔木树种对紫茎泽兰均有一定的控制效果,但最为适宜的替代树种为马尾松。直接替代和综合替代都有控制效果,但要综合运用这两种替代方法,才能达到控制成本和控制效果的最佳结合。

Biological substitution control of Eupatorium adenophorum Spreng. was carded out for 4 years in southern mountainous regions of Guizhou Province. In the experiment, Pinus massoniana, Castanea mollissima ,Melia azedarach , Dendrocalamus latiflorus , Eucalyptus robusta , and Jatropha curcas were selected for the substitution with direct and integrated methods to control the weed. The result showed that all plant species have control effects on the weed and P. massoniana was the best. Both the direct and integrated methods were effective, but the combination of the two was the most effective and low cost.