After a heavy rainfall, what steps should be taken to prevent disease and reduce soil compaction in turf?

• A. Wait for surfaces to dry before mowing; ensure good drainage and avoid traffic on waterlogged areas; consider aeration if compaction is evident.
• B. Mow immediately and fertilize to promote growth.
• C. Apply fungicide and seal area.
• D. Increase irrigation to wash away.

Answer: (A)

After heavy rainfall, the goal is to protect turf by keeping moisture under control and relieving soil compactness. Letting surfaces dry before mowing helps prevent spreading disease and minimizes tissue damage, while avoiding traffic on waterlogged areas reduces further compaction and root stress. Ensuring good drainage prevents water from pooling in the root zone, and if compaction is evident, aeration creates air and water channels that improve root health and disease resistance.

These steps address the real drivers of disease and poor turf condition after rain: excess moisture and compacted soil. Mowing immediately and fertilizing can stress turf when it’s wet, and may actually promote disease. Applying fungicide doesn’t fix drainage or compaction, and increasing irrigation only adds moisture, worsening both disease risk and soil compression.