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随着种植业结构调整、耕作制度的改变和化学除草剂的长期使用 ,果园杂草优势种群和群落结构发生变化 ,给杂草的防除工作带来了新的问题。1999年在广西开展了龙眼、荔枝和香蕉园的杂草种类及危害状况调查。1 杂草种类 根据初步调查和鉴定结果 ,广西龙眼、荔枝园的杂草有 53种
With the adjustment of planting structure, the change of tillage system and the long-term use of chemical herbicides, the dominant population and community structure of weeds in the area have changed, which brought new problems to the prevention and control of weeds. 1999 in Guangxi carried out longan, litchi and banana garden weeds species and hazard status survey. 1 weed species According to the preliminary investigation and identification results, Guangxi longan, lychee garden weeds 53