Note herbicides: In the full understanding of the characteristics on the basis of herbicide Xinxiang cotton fields herbicides, weed control to be achieved in accordance with the purpose of selecting the appropriate mix of herbicides. Exploit synergies between improved herbicide weed activity, but also to improve the crop activity. So Zhejiang cotton fields herbicide, pay attention to prevent crop injury. Herbicides: according to the role into Destuctive Zhoukou cotton fields and selective herbicide herbicides, selective herbicides especially nitrophenol, chlorophenol, amino acid derivatives are most effective. World herbicide development has gradually become stable, mainly the development of efficient, low toxicity, broad-spectrum, low amount of variety, environmental pollution treatment agent disposable gradually become the mainstream.