Abstract: The most common problems encountered in the Indian farmers throughout in agriculture is control of obnoxious, undesirable, unwanted, useless, ugly and often persistent plants, injurious for crops interfere with agricultural operations increases labour and cost of production and finally reduce the crop yields. Such plants are known as weeds. Although there are losses caused by the weeds within field in terms of crop yield, crop weeds competition for space, water, light and nutrients, increases in cost of agriculture production, reduction in price of farm produce, effects livestock product quality, reduction in land value, harbors to pests and diseases, bad effect on human health and soil productivity. However, some weeds have also beneficial effect in agriculture as well as human life.