How to Kill Mouse-ear Chickweed in Tall Fescue Without Hurting Your Lawn
Direct Agronomic Answer
To selectively kill Mouse-ear Chickweed in Tall Fescue without damaging your turf, apply SpeedZone Lawn Weed Killer (2,4-D 28.57%, Mecoprop-p 5.88%, Dicamba 1.71%, Carfentrazone-ethyl 0.62%), TZone SE (Triclopyr 7.72%, 2,4-D 29.36%, Dicamba 2.22%, Sulfentrazone 0.66%) when air temperatures are between 50°F and 85°F.
The dense hairs prevent water droplets from adhering. Adding a non-ionic surfactant (NIS) ensures herbicide uptake through the leaf hairs.
1. Labeled Safe Herbicides That Kill Mouse-ear Chickweed in Tall Fescue
| Recommended Product | Active Ingredient & Group | Application Temp (°F) | Surfactant & Mixing Protocol | Where to Buy |
|---|---|---|---|---|
| SpeedZone Lawn Weed Killer EPA Reg. 2217-833 |
2,4-D 28.57%, Mecoprop-p 5.88%, Dicamba 1.71%, Carfentrazone-ethyl 0.62% Group 4 + Group 14 (Synthetic Auxins + PPO Inhibitor) |
50°F – 85°F Rainfast: 3h |
Do NOT add surfactant. Adding NIS or MSO increases ester volatility and causes severe contact burn on desirable cool-season turf. | Check Price at DoMyOwn View on Amazon |
| TZone SE EPA Reg. 2217-920 |
Triclopyr 7.72%, 2,4-D 29.36%, Dicamba 2.22%, Sulfentrazone 0.66% Group 4 + Group 14 (Pyridine Auxin + Phenoxy + PPO Inhibitor) |
50°F – 80°F Rainfast: 3h |
Do NOT mix with surfactant when temperatures exceed 75°F. In cool spring or fall conditions (55°F–70°F), 0.5 tsp NIS per gallon improves waxy leaf penetration on Wild Violet. | Check Price at DoMyOwn View on Amazon |
3. Optimal Seasonal Timing & Temperature Thresholds
Spray in mid-to-late spring during active vegetative growth or in autumn.
Because it is a perennial, autumn treatments provide the deepest root elimination.
4. Diagnostic Checklist: Confirm It Is Mouse-ear Chickweed Before Spraying
- Dense, dark green foliage covered in sticky, velvety hairs
- Oblong, rounded leaves resembling small mouse ears
- Stems rooting at lower nodes forming dense, competitive patches
Not 100% sure? Use our AI Photo Weed Scanner or review the full Mouse-ear Chickweed Botanical Profile.