Trifluralin is a pre-emergent herbicide commonly used in agriculture and gardening to control annual grasses and certain broadleaf weeds. It works by inhibiting root development in germinating seeds, preventing them from growing. This makes it effective for crops like corn, soybeans, and vegetables. Trifluralin is typically applied to the soil before planting and can be incorporated into the ground or left on the surface. It is important to follow application guidelines to minimize environmental impact and ensure safety for non-target organisms. Proper use helps maintain healthy crops while managing weed populations effectively.