Beyond using labeled nematicides, which practice helps manage turf nematodes?

Beyond using labeled nematicides, which practice helps manage turf nematodes?

• A. Increase mowing height
• B. Improve drainage and turf vigor
• C. Apply more water
• D. Use broadleaf herbicides

Answer: (B)

Improving drainage and turf vigor is the strongest management approach because it targets the conditions nematodes rely on and strengthens the grass to tolerate or outgrow damage. Nematodes feed on roots, so healthy, vigorous roots and a well-aerated, well-drained soil create a tougher environment for nematodes to cause noticeable injury. Proper drainage prevents prolonged soil saturation that can favor nematode activity and root decline, while adequate fertility and healthy turf promote rapid recovery after feeding. This combination reduces the impact of nematodes beyond what nematicides alone can achieve. Increasing mowing height may reduce stress but doesn’t directly address the root environment or nematode activity. Adding more water can actually boost nematode activity, not suppress it. Broadleaf herbicides don’t affect nematodes and won’t help manage their impact.

Improving drainage and turf vigor is the strongest management approach because it targets the conditions nematodes rely on and strengthens the grass to tolerate or outgrow damage. Nematodes feed on roots, so healthy, vigorous roots and a well-aerated, well-drained soil create a tougher environment for nematodes to cause noticeable injury. Proper drainage prevents prolonged soil saturation that can favor nematode activity and root decline, while adequate fertility and healthy turf promote rapid recovery after feeding. This combination reduces the impact of nematodes beyond what nematicides alone can achieve.

Increasing mowing height may reduce stress but doesn’t directly address the root environment or nematode activity. Adding more water can actually boost nematode activity, not suppress it. Broadleaf herbicides don’t affect nematodes and won’t help manage their impact.