Home > Weed Killers > Prodiamine 65 WDG Herbicide
Prodiamine 65 WDG Herbicide
For preemergence control of grass and broadleaf weeds
For preemergence control of grass and broadleaf weeds in established turfgrasses (excluding golf course putting greens), lawns and sod nurseries.
| AMOUNT OF PRODIAMINE 65WDG | INTERVAL (MONTHS) BEFORE OVERSEEDING | |||
| Lbs. of Product / Acre | Oz of Product / 1,000 sqft | North | Transition | South |
| 0.75 | 0.26 | 4 | 4 | 4 |
| 1.00 | 0.37 | 5 | 4 | 4 |
| 1.15 | 0.42 | 6 | 5 | 5 |
| 1.25 | 0.46 | - | 6 | 6 |
| 1.50 | 0.55 | - | 7 | 7 |
| 1.75 | 0.64 | - | - | 9 |
| 2.00 | 0.73 | - | - | 10 |
| 2.30 | 0.84 | - | - | 12 |
| Active Ingredient | % |
|---|
| Prodiamine | 65.00 % |
| Other Ingredients | 35.00 % |
Mode of Action
Lipid Synthesis Inhibitors
Site of Action
(1) ACCase Inhibitor
Available on Amazon
Available on Do My Own
Available on Yard Mastery
Safe On
Click on a grass type below to see safe application rates:
Bahiagrass, Bermudagrass, Centipedegrass, Kikuyu Grass, Seashore Paspalum, St. Augustinegrass, Tall Fescue, Zoysiagrass, Buffalograss, Kentucky Bluegrass, Perennial Ryegrass, Bentgrass, and Fine Fescue
Not Safe On
No not safe on treatments listed. Please, review the label or contact the merchant for more information.
Maximum Yearly Limits
Refer to the green safe rates table for the max yearly limits for each turfgrass species.
Time Between Applications
Prodiamine can be split between two applications. I generally like to do a split application. That means I will apply half of the total rate for the amount of months I want coverage at 55°F soil temperature and half of the total rate at 70°F soil temperature.
Water Instructions
Weed control is most effective when Prodiamine 65WDG is activated by at least 0.5 inches of rainfall or irrigation or shallow incorporation (1 to 2 inches) before weed seeds germinate and within 14 days following application.
Before Seeding Instructions
Don't apply Prodiamine if you plan on seeding, otherwise, wait until the pre-emergent barrier wears off based on your application rate in the "Interval (Months) Before Overseeding" table in the label. It is non-selective and will kill any seed that is trying to germinate, including desirable turfgrass.
After Seeding Instructions
To reduce the potential to injure overseeded turf, wait 60 days after seeding or until after the second mowing, whichever is longer, before applying Prodiamine 65WDG.
Surfactant Instructions
Do not use a surfactant.
CertainLabel™
Prodiamine 65 WDG Optimized Application Label Rate Calculator
Legend:
Control
Suppression
No Control
Blanket Treatment:
per
1
| Grass / Turf Types | Safe |
|---|---|
| Bahiagrass |
|
| Bermudagrass |
|
| Centipedegrass |
|
| Kikuyu Grass |
|
| Seashore Paspalum |
|
| St. Augustinegrass |
|
| Tall Fescue |
|
| Zoysiagrass |
|
1
Jump to
CertainLabel™ Prodiamine 65 WDG Label Rates & Calculator
for
these 8 turf types
Blanket Treatment
per
Label Rate:
0.36 - 0.83 ounces per 1,000 sqft
Cost Effectiveness:
Covers 6024 - 13889 square feet
at a cost of
$1.44 - $3.32 per 1,000 sqft
at a cost of
$1.44 - $3.32 per 1,000 sqft
2
| Grass / Turf Types | Safe |
|---|---|
| Buffalograss |
|
| Kentucky Bluegrass |
|
| Perennial Ryegrass |
|
2
Jump to
CertainLabel™ Prodiamine 65 WDG Label Rates & Calculator
for
these 3 turf types
Blanket Treatment
per
Label Rate:
0.185 - 0.55 ounces per 1,000 sqft
Cost Effectiveness:
Covers 9091 - 27027 square feet
at a cost of
$0.74 - $2.20 per 1,000 sqft
at a cost of
$0.74 - $2.20 per 1,000 sqft
3
| Grass / Turf Types | Safe |
|---|---|
| Bentgrass |
|
3
Jump to
CertainLabel™ Prodiamine 65 WDG Label Rates & Calculator
for
Bentgrass
Blanket Treatment
per
Label Rate:
0.185 - 0.37 ounces per 1,000 sqft
Cost Effectiveness:
Covers 13514 - 27027 square feet
at a cost of
$0.74 - $1.48 per 1,000 sqft
at a cost of
$0.74 - $1.48 per 1,000 sqft
4
| Grass / Turf Types | Safe |
|---|---|
| Fine Fescue |
|
4
Jump to
CertainLabel™ Prodiamine 65 WDG Label Rates & Calculator
for
Fine Fescue
Blanket Treatment
per
Label Rate:
0.185 - 0.42 ounces per 1,000 sqft
Cost Effectiveness:
Covers 11905 - 27027 square feet
at a cost of
$0.74 - $1.68 per 1,000 sqft
at a cost of
$0.74 - $1.68 per 1,000 sqft
1
1
Jump to
CertainLabel™ Prodiamine 65 WDG Label Rates & Calculator
for
these 25 weeds
Blanket Treatment
per
Label Rate:
0.185 - 0.83 ounces per 1,000 sqft
Cost Effectiveness:
Covers 6024 - 27027 square feet
at a cost of
$0.74 - $3.32 per 1,000 sqft
at a cost of
$0.74 - $3.32 per 1,000 sqft
Instructions:
Refer to the green safe rates table for the correct rate for your turf-type.
2
| Weeds | Pre- Emergent |
Post-Emergent |
|---|---|---|
| Chickweed, Common |
|
|
| Henbit |
|
|
| Knotweed |
|
|
| Shepherd's Purse |
|
|
2
Jump to
CertainLabel™ Prodiamine 65 WDG Label Rates & Calculator
for
these 4 weeds
Blanket Treatment
per
Label Rate:
0.185 - 0.83 ounces per 1,000 sqft
Cost Effectiveness:
Covers 6024 - 27027 square feet
at a cost of
$0.74 - $3.32 per 1,000 sqft
at a cost of
$0.74 - $3.32 per 1,000 sqft
Instructions:
To control these weeds, apply Prodiamine 65WDG in late summer, fall, or winter before weed seeds germinate.
Refer to the green safe rates table for the correct rate for your turf-type.
3
| Weeds | Pre- Emergent |
Post-Emergent |
|---|---|---|
| Crabgrass |
|
|
| Crabgrass, Large |
|
|
| Crabgrass, Smooth |
|
|
3
Jump to
CertainLabel™ Prodiamine 65 WDG Label Rates & Calculator
for
these 3 weeds
Blanket Treatment
per
Label Rate:
0.185 - 0.83 ounces per 1,000 sqft
Cost Effectiveness:
Covers 6024 - 27027 square feet
at a cost of
$0.74 - $3.32 per 1,000 sqft
at a cost of
$0.74 - $3.32 per 1,000 sqft
Instructions:
Fall Applications for Spring Crabgrass Control in Cool-Season Grasses: In those areas where the ground freezes in the winter, Prodiamine 65WDG can be applied in the fall at rates of 1.0-1.15 lbs./acre after the soil temperature falls below 50°F but before the ground freezes. This application will control crabgrass the following spring.
Refer to the green safe rates table for the correct rate for your turf-type.
4
| Weeds | Pre- Emergent |
Post-Emergent |
|---|---|---|
| Bluegrass, Annual |
|
|
4
Jump to
CertainLabel™ Prodiamine 65 WDG Label Rates & Calculator
for
Annual Bluegrass
Blanket Treatment
per
Label Rate:
0.185 - 0.83 ounces per 1,000 sqft
Cost Effectiveness:
Covers 6024 - 27027 square feet
at a cost of
$0.74 - $3.32 per 1,000 sqft
at a cost of
$0.74 - $3.32 per 1,000 sqft
Instructions:
In areas where Poa annua is a winter annual, apply Prodiamine 65WDG (see Table 1) in August or September to established, non-overseeded turf before Poa annua seeds germinate. These timings are approximate. Consult State Extension Service for more specific timing for your area. Also, see the section of this label "Poa Annua Control in Established Bermudagrass Overseeded with Perennial Ryegrass”.
Refer to the green safe rates table for the correct rate for your turf-type.
5
| Weeds | Pre- Emergent |
Post-Emergent |
|---|---|---|
| Goosegrass |
|
|
5
Jump to
CertainLabel™ Prodiamine 65 WDG Label Rates & Calculator
for
Goosegrass
Blanket Treatment
per
Label Rate:
0.185 - 0.83 ounces per 1,000 sqft
Cost Effectiveness:
Covers 6024 - 27027 square feet
at a cost of
$0.74 - $3.32 per 1,000 sqft
at a cost of
$0.74 - $3.32 per 1,000 sqft
Instructions:
In many areas, a single application of 1.0-2.3 lbs./acre of Prodiamine 65WDG will control goosegrass. However, under heavy goosegrass pressure and/or an extended growing season, the most effective control may be maintained by making a "split application" (i.e. two applications) that does not exceed the maximum application rate per calendar year for the turfgrass species.
Refer to the green safe rates table for the correct rate for your turf-type.