Which pest is suspected when mounding reduces ample use of golf greens?

• A. Japanese beetles
• B. European chafer
• C. Ants
• D. Hairy chinch bug

Answer: (C)

Ants create visible soil mounds on turf, and those mounds on a golf green disrupt the smooth putting surface and the way the ball rolls. When mounding is the clue that limits use of greens, ants are the most likely culprit because their nests excavate soil and push it above ground, creating the irregular surface golfers notice.

Other pests don’t typically produce these surface mounds on greens. Beetle larvae like those of Japanese beetles or European chafer feed on roots below the surface, which weakens turf but doesn’t create mound-like disturbances. Hairy chinch bugs cause localized yellowing or thinning from drying, again without mound formation. So the hallmark sign here—the mounded surface—points to ant activity. If you confirm by observing ant trails or nest entrances near the greens, that reinforces the diagnosis and guides targeted management.