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Dimension 2EW Herbicide

Season-long crabgrass control

Dimension 2EW Logo
From the first application to the last, Dimension® specialty herbicide is the only choice for preemergence and early postemergence crabgrass control.
Active Ingredient %
Dithiopyr 24.00 %
Other Ingredients 76.00 %
Mode of Action
Seedling Root Growth Inhibitors
Site of Action
(3) Microtubule Inhibitor
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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 6 pints of Dimension 2EW per acre per year (2.2 fl oz per 1000 sq ft). Do not apply more than 2 pints of Dimension 2EW per acre (0.73 fl oz per 1000 sq ft) per application.
Water Instructions
This product is most effective when activated by 1/2 inch or more of rainfall or irrigation. To optimize control, ensure that activation has occurred prior to germination of most grass and broadleaf weeds.
Before Seeding Instructions
Reseeding, overseeding or sprigging of treated areas within 3 months after a single application of this product, or within 4 months after a sequential application program totaling more than 2 pints per acre (0.73 oz per 1000 sq ft), may inhibit the establishment of desirable turfgrasses. However, overseeding of bermudagrass with perennial ryegrass 8 weeks after an application or as early as 6 weeks after application if slight injury to perennial ryegrass can be tolerated is a recommended exception.
After Seeding Instructions
Newly established turf must have developed a good root system and a uniform stand, and have received at least two mowings following seeding or sprigging before making the first application of this product. 
CertainLabel™

Dimension 2EW Optimized Application Label Rate Calculator

Legend:
Control
Suppression
No Control
Blanket Treatment:
1
Grass / Turf Types Safe
Bahiagrass
Carpetgrass
Centipedegrass
Kentucky Bluegrass
Perennial Ryegrass
Seashore Paspalum
St. Augustinegrass
Tall Fescue
Zoysiagrass
1
Jump to CertainLabel™ Dimension 2EW Label Rates & Calculator for these 9 turf types
Blanket Treatment
Label Rate:
0.37 - 0.73 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 87120 - 174240 square feet
at a cost of
$0.84 - $1.68 per 1,000 sqft
2
Blanket Treatment
Label Rate:
0.37 - 0.73 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 87120 - 174240 square feet
at a cost of
$0.84 - $1.68 per 1,000 sqft
Instructions:
Do not use this product on certain varieties of creeping bentgrass, such as cohansey, carmen, seaside, and Washington as undesirable turfgrass injury may result. Not all varieties of creeping bentgrass have been tested. Do not apply this product to colonial bentgrass (Agrostis tenuis) varieties.
3
Blanket Treatment
Label Rate:
0.37 - 0.73 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 87120 - 174240 square feet
at a cost of
$0.84 - $1.68 per 1,000 sqft
Instructions:
 Do not use this product on Tifgreen (328) hybrid bermudagrass as undesirable turfgrass injury may result. Other common and hybrid bermudagrass varieties are tolerant.
4
Blanket Treatment
Label Rate:
0.37 - 0.73 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 87120 - 174240 square feet
at a cost of
$0.84 - $1.68 per 1,000 sqft
Instructions:
Do not use this product on seedling buffalograss in the spring of the first year of establishment until the turfgrass is fully green and has established new roots.
5
Blanket Treatment
Label Rate:
0.37 - 0.73 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 87120 - 174240 square feet
at a cost of
$0.84 - $1.68 per 1,000 sqft
Instructions:
Do not use this product on certain varieties of fine fescue as undesirable turf injury may result. The following fine fescue varieties have been found to be sensitive to this product: Atlanta, banner, beauty, bilgart, CF-2, enjoy, HF-93, highlight, ivalo, Jamestown, koket, majenta, Mary, pennlawn, Tamara, Tatjana, waldorf, and waldina. Not all varieties of fine fescue have been tested.
2
Blanket Treatment
Label Rate:
0.37 - 0.73 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 87120 - 174240 square feet
at a cost of
$0.84 - $1.68 per 1,000 sqft
Instructions:
This product provides both preemergence and postemergence control of crabgrass (including large, smooth, and southern species) in established lawns and ornamental turf. This product provides postemergence control of crabgrass through the 3 to 5 tiller stage of growth dependent upon location. The addition of a nonionic surfactant at a minimum of 0.25% v/v (2 pt per 100 gallons of spray) is recommended to improve postemergence control past the 5 leaf stage of growth. Read and follow the surfactant manufacturer's label directions. Postemergence control of this product can be improved by not mowing turfgrass within two days before or after application.
When applied at 2 pints per acre this product has demonstrated postemergent crabgrass control through the 3 to 5 tiller stage of growth in the western, southern and transition regions where warm-season turfgrasses are the predominate species.
In regions where cool-season turfgrasses are the predominant species, early postemergence crabgrass control is obtained when this product is applied prior to tiller initiation of crabgrass (less than 5 leaves per plant), which generally corresponds to the time when crabgrass seedlings are easily observed in lawn or turf.
For preemergence residual control of crabgrass, apply at least 0.5 inch of water after application; but in order to optimize postemergence control delay irrigation for 6 hours after application. 
3
Blanket Treatment
Label Rate:
0.37 - 0.73 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 87120 - 174240 square feet
at a cost of
$0.84 - $1.68 per 1,000 sqft
Instructions:
Apply Dimension 2EW for preemergence control of Poa annua (annual bluegrass) at a rate of 1.5 to 2 pints (0.38 to 0.5 lbs active ingredient) per acre. 
  • Apply 6 to 8 weeks before overseeding perennial ryegrass into bermudagrass. This is specific to perennial ryegrass; not recommended for Poa trivialis or bentgrass. 
  • Minimum seeding rate of perennial ryegrass is 400 lbs per acre. 
  • Use limited to fairways and roughs. 
  • Perennial varieties of Poa annua (var. repens) may not be controlled as well as the true annual variety. 
  • Do not apply earlier than 16 weeks after over-seeding unless injury to the ryegrass can be tolerated. 
  • A follow-up treatment 16 weeks after overseeding offers an early season crabgrass treatment and helps suppress some winter annual broadleaf weeds.
4
Blanket Treatment
Label Rate:
0.73 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 87120 square feet
at a cost of
$1.68 per 1,000 sqft
Instructions:
For best results, apply Dimension 2EW at 2 pints (0.5 lbs active ingredient) per acre just prior to goosegrass germination. Base the application timing on local experience or soil temperatures. If targeting both crabgrass and goosegrass, a single application applied at preemergence crabgrass timing may not be adequate. When targeting both crabgrass and goosegrass it is best to make sequential applications. Based on past experience and crabgrass pressure, a lower rate may be used for the first application with the sequential application being made at 2 pints per acre.
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