Home > Weed Killers > Pennant Magnum Herbicide
Pennant Magnum Herbicide
Pre-Emergent Weed Control for Warm-Season Turf
Pennant Magnum herbicide, containing the active ingredient s-metolachlor, prevents yellow nutsedge, smooth and large crabgrass, and over 20 more turf, ornamental and landscape weeds from germinating on the golf course or in the landscape and is safe to ornamental plants.
| Active Ingredient | % |
|---|
| S-metolachlor | 83.70 % |
| Other Ingredients | 16.30 % |
Label & SDS
Mode of Action
Seedling Shoot Growth Inhibitors
Site of Action
(15) Long-chain Fatty Acid Inhibitor
Safe On
Click on a grass type below to see safe application rates:
Bahiagrass, Bermudagrass, Centipedegrass, St. Augustinegrass, and Zoysiagrass
Not Safe On
No not safe on treatments listed. Please, review the label or contact the merchant for more information.
Maximum Yearly Limits
(1) Split rate of applications can be made at rates not less than 1 pt/A. (2) Do not apply more than once every 6 weeks. (3) For commercial sod production, do not apply more than 4.2 pt/A per year to the same area used for sod production. (4) For other turf uses, do not apply more than 2.6 pt/A per year
Time Between Applications
Do not apply more than onceevery 6 weeks.
Water Instructions
Since soil moisture is necessary to activate Pennant Magnum, irrigate with 1/2 inch of water if rainfall does not occur within 7 days after treatment.
CertainLabel™
Pennant Magnum Optimized Application Label Rate Calculator
Legend:
Control
Suppression
No Control
Blanket Treatment:
per
1
| Grass / Turf Types | Safe |
|---|---|
| Bahiagrass |
|
| Bermudagrass |
|
| Centipedegrass |
|
| St. Augustinegrass |
|
| Zoysiagrass |
|
1
Jump to
CertainLabel™ Pennant Magnum Label Rates & Calculator
for
these 5 turf types
Blanket Treatment
per
Label Rate:
0.48 - 0.96 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 134031 - 268061 square feet
at a cost of
$0.88 - $1.76 per 1,000 sqft
at a cost of
$0.88 - $1.76 per 1,000 sqft
1
| Weeds | Pre- Emergent |
Post-Emergent |
|---|---|---|
| Crabgrass, Large |
|
|
| Crabgrass, Smooth |
|
|
| Nutsedge, Yellow |
|
|
| Sedge, Annual |
|
|
1
Jump to
CertainLabel™ Pennant Magnum Label Rates & Calculator
for
these 4 weeds
Blanket Treatment
per
Label Rate:
0.96 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 134031 square feet
at a cost of
$1.76 per 1,000 sqft
at a cost of
$1.76 per 1,000 sqft
2
| Weeds | Pre- Emergent |
Post-Emergent |
|---|---|---|
| Bluegrass, Annual |
|
|
| Doveweed |
|
|
| Sprangletop |
|
|
2
Jump to
CertainLabel™ Pennant Magnum Label Rates & Calculator
for
these 3 weeds
Blanket Treatment
per
Label Rate:
0.48 - 0.96 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 134031 - 268061 square feet
at a cost of
$0.88 - $1.76 per 1,000 sqft
at a cost of
$0.88 - $1.76 per 1,000 sqft