<h1><strong>USES OF WEEDS; METHODS OF WEED CONTROL</strong></h1> CONTENT <ol> <li>Uses of Weeds</li> <li>Methods of Weeds Control</li> </ol>   <h2><strong>Uses of Weeds</strong></h2> Weeds are used for the following purposes: <ol> <li>Some weeds are used as cover crops.</li> <li>Weeds are used as forage grasses and legumes for feeding animals e.g. elephant grass.</li> <li>Weeds are used to prepare compost and green manure e.g. mucuna, pueraria.</li> <li>They are used to control soil erosion e.g. bahama grass.</li> <li>They serve medicinal purposes e.g. lemon grass.</li>

<h1><strong>EFFECTS OF WEED CONTROL METHODS ON VEGETATION AND SOIL</strong></h1> CONTENT <ol> <li>Effects of Chemical Control of Weeds on Vegetation and Soil</li> <li>Effects of Bush Burning on Vegetation and Soil</li> <li>Effects of Mechanical/Physical Control of Weeds on Vegetation and Soil</li> <li>Effects of Biological Control of Weeds on Vegetation and Soil</li> <li>Adverse Effects of Weeds/Problems Posed by Weeds in Agriculture/Economic Importance of Weeds</li> </ol>   <h2><strong>Effects of Chemical Control of Weeds on Vegetation and Soil </strong></h2> The following are the effects of chemical control of weeds on vegetation and soil: <ol> <li>Herbicides can be poisonous to human beings.</li> <li>Beneficial organisms may be destroyed.</li> <li>Herbicides can pollute soil and ground water.</li> <li>Herbicides can contaminate livestock pasture thereby killing the animals that feed on them.</li> <li>Some herbicides, when used, can kill both good and unwanted plants and animals.</li>

<h1><strong>DISPERSAL OF WEEDS (WEED DISSEMINATION)</strong></h1> CONTENT <ol> <li>Introduction</li> <li>Meaning of Weed Dispersal</li> <li>Agents of Weed Dispersal</li> </ol> <h2><strong>Introduction</strong></h2> Weeds are widely dispersed through various adaptations. This is one of the reasons why weeds survive and are found in almost all cultivated fields. <h2><strong>Meaning of Weed Dispersal </strong></h2> This is the process by which seeds of weeds, fruits and propagules are carried from one place to another through one agent or the other. <h2><strong>Agents</strong> <strong>of Weed Dispersal</strong></h2> The agents of weed dispersal include the following: