Celsius® WG is a selective, professional-grade post-emergent herbicide designed to eliminate tough broadleaf weeds and grassy weeds in established warm-season turf. Featuring multiple modes of action, Celsius delivers reliable control while remaining safe on labeled turf types when used as directed.
This is the same weed control solution trusted by lawn care professionals on residential lawns, golf courses, sports fields, and commercial properties.
If you want clean, weed-free warm-season turf without damaging your grass, Celsius WG is one of the most versatile options available.
✔ Controls over 150+ broadleaf and grassy weeds
✔ Safe on labeled warm-season turf
✔ Works in hot summer conditions
✔ Low use rates = economical per application
✔ Provides some residual control
✔ Excellent resistance management
✔ Compatible with many tank-mix partners
Celsius WG is labeled for use on the following established turf types:
Bermudagrass
St. Augustinegrass
Centipedegrass
Zoysiagrass
Buffalograss
Tall Fescue
Kentucky Bluegrass
Perennial Ryegrass
Fine Fescue
Bentgrass
Bahiagrass
Seashore Paspalum
Using on non-labeled grasses may result in serious turf injury
Celsius contains three active ingredients that attack weeds in different ways:
Stops weed growth within hours
Causes yellowing and discoloration
Leads to full control in 1–4 weeks
Reduces risk of herbicide resistance
Works best when weeds are actively growing and temperatures are above 65°F.
Rates are determined by weed pressure, not grass type. All labeled turf uses the same rate structure.
| Application Level | Rate per 1,000 sq ft | Grams per 1,000 sq ft | Per Acre |
|---|---|---|---|
| Low Rate | 0.057 oz | 1.6 g | 2.5 oz |
| Medium Rate | 0.085 oz | 2.4 g | 3.7 oz |
| High Rate | 0.113 oz | 3.2 g | 4.9 oz |
| Yearly Maximum | 0.17 oz | 4.8 g | 7.4 oz |
| Turf Type | Best Application Window | Notes |
|---|---|---|
| Bermudagrass | Spring–Fall (65°F+) | Safe during heat |
| St. Augustine | Spring–Fall | Avoid spot treating over 90°F |
| Centipedegrass | Late Spring–Summer | Apply to healthy turf |
| Zoysiagrass | Spring–Summer | Avoid stressed turf |
| Buffalograss | Late Spring–Summer | Light discoloration possible |
For Spot & Zone Spraying:
Mix 0.057–0.113 oz per gallon of water
1 gallon covers up to 1,000 sq ft
| Rate | 1 Gal | 2 Gal | 3 Gal | 4 Gal | 5 Gal |
|---|---|---|---|---|---|
| Low | ½ tsp | 1 tsp | 1½ tsp | 2 tsp | 2½ tsp |
| Medium | ¾ tsp | 1½ tsp | 2¼ tsp | 1 Tbsp | 3¾ tsp |
| High | 1 tsp | 2 tsp | 1 Tbsp | 4 tsp | 5 tsp |
1️⃣ Fill tank 25–50% with water
2️⃣ Start agitation
3️⃣ Add Celsius WG first
4️⃣ Allow full dispersion
5️⃣ Add surfactant/fertilizer if used
6️⃣ Finish filling tank
7️⃣ Maintain agitation
For tough weeds:
Non-Ionic Surfactant (NIS)
Methylated Seed Oil (MSO)
⚠️ Do NOT use adjuvants above 90°F.
⚠️ Avoid on stressed turf.
Do not exceed yearly maximum
Do not apply to frozen turf
Do not apply before frost
Keep people/pets off until dry
No aerial application