The best-management practice for weeds is to promote high quality turf.

• A. Use aggressive chemical controls
• B. Mow very low
• C. Water deeply and frequently
• D. Promote high quality turf

Answer: (D)

A dense, uniformly healthy turf stand outcompetes weeds by shading the soil and quickly using light, water, and nutrients that weed seeds would need to establish. When turf quality is high, the canopy closes, leaving little bare soil for weed germination and making it harder for weeds to gain a foothold. Achieving this level of vigor comes from mowing at the right height and frequency, providing balanced fertility, and ensuring irrigation supports steady growth without stressing the stand. Relying on aggressive chemical controls addresses weeds momentarily but doesn’t repair underlying competition and can lead to resistance or unintended harm to beneficial organisms. Mowing very low tends to weaken turf and create bare patches that invite weeds. Watering deeply and frequently can favor certain weeds and disrupt turf rooting, so consistent, appropriate irrigation that supports a robust turf is preferred. In short, a strong, healthy turf naturally suppresses weeds and reduces the need for other control measures.