What type of herbicides can be used for a fresh start before planting a new lawn?

Using nonselective herbicides is appropriate for creating a clean slate before planting a new lawn, as they effectively kill all types of vegetation, including weeds and existing grass. This type of herbicide contains active ingredients that penetrate plant tissues and disrupt metabolic processes, leading to complete plant death. By eliminating unwanted plants, a nonselective herbicide allows for optimal conditions for new grass seed to germinate and establish without competition from existing flora.

Pre-emergent herbicides are designed to prevent the germination of weed seeds and would not be suitable for clearing existing plants. Selective herbicides target specific types of plants (usually weeds) without harming desired vegetation, which doesn't help in the context of starting fresh. Systemic herbicides affect the entire plant by being absorbed and distributed throughout its tissues, but the key distinction is that nonselective herbicides will clear all vegetation, making them the best choice when preparing for a new lawn.