Controlling White Clover in LM Grass Lawn

You have three-leaf clover (likely white clover, Trifolium repens) invading your LM grass lawn. You need control options that won't harm the LM grass.

The Core Problem: LM Grass Identification

"LM grass" isn't a standard turfgrass name. It could refer to:

• LM Berea (Dactyloctenium australe) – a shade-tolerant warm-season grass used in South Africa
• A local/common name for a specific variety

Herbicide tolerance varies wildly by species. You must identify your grass precisely.

If It's a Warm-Season Grass (Bermuda, Zoysia, St. Augustine, etc.)

• 2,4-D (in amine formulation) controls white clover but can damage St. Augustine and centipede at high temps.
• Mecoprop (MCPP) + Dicamba combinations (e.g., Trimec Southern) are safer on sensitive warm-season grasses.
• Atrazine (pre/post-emergent) works on clover in St. Augustine/centipede—check temperature limits.

If It's a Cool-Season Grass

• Standard broadleaf weed controls (2,4-D, MCPP, dicamba combos) work well in fall or spring.

Non-Chemical Approaches

• Hand-pull when soil is moist (remove taproot).
• Mow high—clover tolerates close mowing; your grass may not.
• Improve nitrogen fertility—clover fixes its own nitrogen; low N favors clover.
• Corn gluten meal (pre-emergent) applied in early spring suppresses new seedlings.

Next Step

Contact your local Ministry of Agriculture or Extension Service with a grass sample for positive ID and approved herbicide recommendations for your region.