Which condition is NOT typically associated with moss development in lawns?

• A. Low fertility
• B. Poor drainage, compaction
• C. Thinned turf
• D. High fertility

Answer: (D)

Moss tends to take over when the turf is weak and conditions keep the soil damp and compact. When fertility is low, grasses grow slowly and gaps form, making it easy for moss to establish. Poor drainage or soil compaction traps moisture, further favoring moss over vigorous, dense grass. Thinned turf creates open spaces for moss to occupy as well. High fertility, on the other hand, promotes lush, competitive turf that crowds out moss, so moss development is not typically associated with high fertility. To reduce moss, focus on improving drainage and soil structure and boosting turf density through appropriate fertilization and overseeding.