TY - BOOK AU - Labrada,R. ED - Food and Agriculture Organization of the United Nations TI - Weed management for developing countries: Addendum, 1 T2 - FAO plant production and protection paper SN - 9251050198 PY - 2003/// CY - Rome PB - Food and Agriculture Organization of the United Nations KW - Weeds KW - Control KW - Developing countries KW - Risk assessment KW - Herbicide resistance KW - Water hyacinth N1 - "TC/M/Y5031E/1/11.03/1200"--P. [4] of cover; Includes bibliographical references and index N2 - Weed management does not consist solely in the use of herbicides: other methods exist. The paper emphasizes the importance of evaluating weed ecology in understanding weed problems, the need to evaluate seed banks in the soil, the importance of evaluating weed competition and the ability of crops to compete with weeds. Also covered are troublesome weed problems including water hyacinth, and the risks and benefits of using transgenic herbicide-resistant crops ER -