Herbicides prevent: first herbicide injury and environmental conditions are closely related. Typically, soil texture Zhoukou peanut field herbicides, organic matter content is relatively constant, Zhejiang peanut field herbicides, and humidity, light, precipitation, soil moisture is large changes from year to year peanut field herbicides, so the impact of environmental factors on injury more complex. Most herbicides conditions at higher temperatures better efficacy Xinxiang peanut field herbicides, the crop is safe. Herbicides: according to the role into Destuctive and selective herbicides and selective herbicides in particular, 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.