Home > Weed Killers > Prime Source Meso 4 SC Select Herbicide
Prime Source Meso 4 SC Select Herbicide
Provides post-emergent control of tough-to-control weeds.
| Active Ingredient | % |
|---|
| Mesotrione | 40.00 % |
| Other Ingredients | 60.00 % |
Mode of Action
Lipid Synthesis Inhibitors
Site of Action
(1) ACCase Inhibitor
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Safe On
Click on a grass type below to see safe application rates:
Chewings Fescue, Fine Fescue, Hard Fescue, Perennial Ryegrass, Red Fescue, Buffalograss, Centipedegrass, Kentucky Bluegrass, Tall Fescue, and St. Augustinegrass
Not Safe On
No not safe on treatments listed. Please, review the label or contact the merchant for more information.
Maximum Yearly Limits
DO NOT apply more than 16 oz. (or 0.50 lb. mesotrione per acre per year) per acre per year or per crop whichever is shorter.
Water Instructions
If applied pre-emergence, it is absorbed when emerging from the soil. Pre-emergence activity and control is reduced under dry conditions. Activate Meso 4 SC Select with 0.15 inches of irrigation if rain hasn’t fallen within 10 days of application for pre-emergence.
Before Seeding Instructions
Apply 5-8 fl. oz. Meso 4 SC Select per acre in at least 30 gallons of water per acre before seeding or after seeding of tolerance turfgrass species listed below, except fine fescue, as application to fine fescue can reduce grass density. Meso 4 SC Select can be effectively used on grass seed blends that contain <20% by weight hard/fine fescue. For optimal control, apply at grass seeding or as close to seeding as possible.
After Seeding Instructions
DO NOT spray on newly germinated turfgrass. Delay treatment until grass has been mowed 2-4 times and/or 4 weeks after emergence (whichever is longer).
Surfactant Instructions
Add a nonionic surfactant when making post- emergence applications.
CertainLabel™
Prime Source Meso 4 SC Select Optimized Application Label Rate Calculator
Legend:
Control
Suppression
No Control
Spot Treatment:
per
Blanket Treatment:
per
1
| Grass / Turf Types | Safe |
|---|---|
| Chewings Fescue |
|
| Fine Fescue |
|
| Hard Fescue |
|
| Perennial Ryegrass |
|
| Red Fescue |
|
1
Jump to
CertainLabel™ Prime Source Meso 4 SC Select Label Rates & Calculator
for
these 5 turf types
Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Blanket Treatment
per
Label Rate:
0.11 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 69696 square feet
at a cost of
$0.77 per 1,000 sqft
at a cost of
$0.77 per 1,000 sqft
2
| Grass / Turf Types | Safe |
|---|---|
| Buffalograss |
|
| Centipedegrass |
|
| Kentucky Bluegrass |
|
| Tall Fescue |
|
2
Jump to
CertainLabel™ Prime Source Meso 4 SC Select Label Rates & Calculator
for
these 4 turf types
Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Blanket Treatment
per
Label Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 43560 - 87120 square feet
at a cost of
$0.61 - $1.23 per 1,000 sqft
at a cost of
$0.61 - $1.23 per 1,000 sqft
3
| Grass / Turf Types | Safe |
|---|---|
| St. Augustinegrass |
|
3
Jump to
CertainLabel™ Prime Source Meso 4 SC Select Label Rates & Calculator
for
St. Augustinegrass
Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Blanket Treatment
per
Label Rate:
0.09 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 87120 square feet
at a cost of
$0.61 per 1,000 sqft
at a cost of
$0.61 per 1,000 sqft
1
1
Jump to
CertainLabel™ Prime Source Meso 4 SC Select Label Rates & Calculator
for
these 48 weeds
Spot Treatment
per
Label Rate:
0.08 fluid ounces per gallon
Cost Effectiveness:
Makes 96 gallons
at a cost of
$0.56 per gallon
at a cost of
$0.56 per gallon
Blanket Treatment
per
Label Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 43560 - 87120 square feet
at a cost of
$0.61 - $1.23 per 1,000 sqft
at a cost of
$0.61 - $1.23 per 1,000 sqft