Methods of controlling weeds are as many as there are these plant-killers. Weeding methods fall into four categories basically. The first is the cultivation or mechanical methods like hand weeding or hand pulling. The next is cropping or cultural method where good and strong seeds of adaptable variety are used to germinate quickly.
The chemical method involves the use of pesticides and fungicides and lastly, the biological method involves plants that grow quickly with a larger leaf area.
Spray a weed killer:
Treating the whole lawn is necessary if it has been badly infested. A weed killer is the best option. The killer is basically a plant hormone solution, which when sprayed stimulates the cells of plants.
In certain areas of the plants, the cells multiply so rapidly, particularly the tips of the shoots. Metabolism of the plant gets fatally disturbed due to this and the weed eventually dies off, leaving the rest of the plants to thrive.
All you need to do is spray it on the plant and it gets absorbed through the leaves within the sap. It then circulates through every part of the plant. If applied in late spring the weed killer is more effective because that is when the sap is most active and the plant is growing fast.