Dimension 2EW Herbicide - Questions & Answers

Herbicides are a lot different than other concentrated products and can be hard to understand at first. The application rate depends on the the type of turf you have and how quickly you apply the product.  You will need to read the product label to determine the correct usage rate for your needs (you did not give us any information about the type of lawn, region or application program you will be using so we cannot give you exact rates). The amount of water used to apply Dimension herbicide is not critical, but should be sufficient for uniform coverage of the target area. Calibrate by determining the volume of water required to treat 1,000 square feet. Use this calibration volume to determine the amount of water and Dimension herbicide needed to treat the target area (see the following calibration example). Note: Sprayer calibration (volume of spray needed to treat 1,000 square feet) will vary with each individual operator.

Steps in Calibration:
1. Mark an area of 1,000 square feet (i.e. 20 by 50 feet or 25 by 40 feet).
2. Place the sprayer on a level surface and add water noting the final level of water in the spray tank.
3. Spray the marked area with a sufficient volume of water to provide uniform coverage. Refill the sprayer to the same level as before measuring the amount of water added. The measured water added to the sprayer is the volume needed to cover 1,000 square feet.
4. Determine the application rate (0.073- .55 fl. oz./1,000 sq. ft.) for Dimension from the Recommendations section of this label.
5. To each volume of water used as measured in step 3, add the amount of Dimension as determined in step 4.

Example: If the sprayer uses 1 gallons of water to cover 1,000 square feet and the desired application rate of Dimension is .55 fluid oz./1,000 square feet, then you would add .55 fluid ounces of Dimension to every 1 gallon of water to be used."

Dimension 2EW is not effective until activated with 1/2 inch of rainfall or irrigation. Ideally, the Dimension should be watered in within 7 days of application.

As soon as Dimension 2EW has dried on the lawn it is safe to allow pets back on the lawn.  This depends on how hot it is, but most of the time 1 hour is plenty long enough for the solution to dry.

You will need .75 - 3.0 pints of Dimension 2EW per acre. The exact amount you will need will be based on what region you are located in and what program you choose. Please refer to page 5 of the Dimension 2EW Herbicide Label for more specific information.

You can use a hose end sprayer to apply this product, but we are not familiar with the Ortho model so we do not know what specifics to give you.  As far as application rates, we wish it was that easy.  Bluegrass and Crabgrass require slightly different treatments and also depend on where you live and what grass you have currently that you are trying keep them out of, which you did not state.  Also, herbicides do not give a water amount.  They only tell you how much of the product to apply over 1000 square feet.  The amount of water is dependent on how ever much water it takes for you to walk 1000 square feet.  Whether you place the amount of product per 1000 square feet in a gallon of water or 10 gallons of water, it does not matter, just as long as that amount of product is distributed over the 1000 square feet.  Since you are treating two different types of grasses, we recommend calling the manufacturer since they are the experts on their own product and could probably give you a more definitive answer than we can.  They should also be able to better help you with the settings on your hose end sprayer.  The manufacturer is Dow Agro and you can reach them at 1-317-337-3000.

The shelf life on most liquid herbicides (including Dimension 2EW) all depends on how they are stored. If the product has been tightly sealed and kept out of sunlight and extreme temperatures, the shelf life is 3-5 years.

As far as we know, there are no products that exist that control nutsedge as a pre-emergent. The Dimension is one of our best pre-emergents for crabgrass and other broadleaf weeds but will not work for your needs. You would need to use a post emergent product like Sedgehammer to control the nutsedge once it has come up.

You will use .33 - .73 of an ounce of Dimension 2EW per 1,000 sq ft. The exact usage rate will depend on your location and the application program you choose. Please refer to pages 4-6 of the Dimension 2EW Herbicide Label to find the exact usage rate for your needs.

The dilution ratio of Dimension 2EW Herbicide is 0.28 - 0.73 oz. per 1,000 sq. ft. At the high rate, you will use 7 fl. oz. in a 25 gallon sprayer and 18.25 fl. oz. at the higher rate.

Yes, Dimension 2EW is safe to use on well established St. Augustine lawns. What season you need to begin applications and usage rate will depend on what you are treating. Pages 4 and 5 of the Dimension 2EW Herbicide Label  gives you the 3 different options for treatments programs. As for discounts, we do run periodic specials and coupons which we email to our customers that have signed up to receive coupons from us and we always offer a low price guarantee and free shipping.

Since Dimension 2EW is a pre-emergent, you have to wait at least 3 to 4 months before re-seeding your lawn.  Pre-emergents of course will not allow anything trying to germinate to progress, so the grass seeds will not germinate until the Dimension 2EW is gone from the lawn.

Yes Dimension 2EW does need to be watered in with about a 1/2 inch of water to be activated. Many folks choose to apply just before a rainfall and let nature water in the product for them.

Dimension 2EW would be a great pre-emergent for established St. Augustine and Zoysia lawns. It is labeled for sedges, crabgrass and many other listed weeds. Please refer to the product label for specific application instructions.

Dimension 2EW Herbicide and a weed and feed can be applied at the same time. There is no wait period.

Yes, Dimension 2EW can be applied to bare ground. The sod can be put down immediately after an application of Dimension 2EW. When putting down sod, make sure to do a heavy application of the product to ensure that if the soil is disturbed when putting down the sod, that the weeds will still be prevented. You will use more water, not product.

Dimension 2EW would be great as a pre emergent on fescue grass.  Dimension 2EW herbicide provides preemergence and early postemergence control of crabgrass, and season-long control of crabgrass, goosegrass, foxtail, spurge and bluegrass annual. Please consult the product label for application.

Pre-emergents would be applied before soil temperatures reach 55 degrees as that is when crabgrass starts to germinate and you have to apply these types of products before the target weeds do so.  There is not time restriction between using a post and pre and some are applied together if you have weeds at the same time you need to prevent others but a pre should be applied before a post to prevent in the first place.  We do have general lawn care schedules here that can help.  The best pre-emergent for crabgrass is anything that contains Dithiopyr as it also has very early post emergent control of crabgrass only if you do not get it down in time and it pops up.  Once weeds have emerged you can use a product like Q4 for cool season turf applied when target weeds are actively growing as they only kill those weeds that are sprayed directly.  Those please note: For use in California: Biotypes of large and smooth crabgrass in California have shown varied response to this product. If control failure occurs following a full or split application, DO NOT reapply this product. Change to a herbicide with a different mode of action.

Tenacity would be an option if you do have this issue.

You can use a hose end sprayer or any backpack sprayer to apply Dimension 2EW.  Keep in mind herbicides do not give a water amount.  They only tell you how much of the product to apply over 1000 square feet and this will depend on your grass type and program you are using to apply.  The amount of water is dependent on how ever much water it takes for you to walk 1000 square feet.  Whether you place the amount of product per 1000 square feet in a gallon of water or 10 gallons of water, it does not matter, just as long as that amount of product is distributed over the 1000 square feet.  Please refer to the product label for complete intructions.

Dimension 2EW is our most popular pre-emergent product for use on St Augustine grass. We do recommend that you check out the product label and make sure the weeds you are trying to prevent are listed as herbicides can be pretty specific as to what they will or will not work on.

Since Dimension 2EW is a pre-emergent, you have to wait at least 3 to 4 months before re-seeding your lawn.  Pre-emergents of course will not allow anything trying to germinate to progress, so the grass seeds will not germinate until the Dimension 2EW is gone from the lawn.