Human: What are the best ways to control weeds? Assistant: 
The best way to control weeds is by using a combination of cultural, mechanical and chemical methods. Cultural methods involve removing weeds before they have a chance to establish themselves or by preventing them from germinating in the first place. Mechanical methods include pulling up existing weeds manually or with a hoe, mulching, and tilling. Chemical methods include applying herbicides and/or fertilizers directly onto the soil surface or into the soil around the base of the plant.