Weed killers, also known as herbicides, play a crucial role in controlling unwanted plants that invade lawns, gardens, and agricultural fields. They come in various types and formulations, each designed to target specific weeds while minimizing harm to desired plants. Some are broad-spectrum, targeting a wide variety of weeds, while others are selective, designed for use on lawns and other specific areas. In this guide, we will explore the types and uses of weed killers, drawing examples from a wide range of products and formulations listed above.