According to the product label:
Dimension 2EW is not labeled to be used in edible gardens. We do carry the Vegetable & Ornamental Weeder that is safe for that use though.
After application of Dimension 2EW Herbicide, you can reseed 3-4 months after application. Per label:
Pre-emergents like Dimension 2EW should be used before the weeds germinate in the fall time. We would recommend checking with a local master gardener in your area to give you an exact time. Here is the link:
http://www.csrees.usda.gov/Extension/
Please let us know if you have any additional questions.
Yes, you will mix the amounts as specified on the label. It does not sound like a lot, but it is enough product to treat the area in at least two gallons of water.
Dimension 2EW would ebe a good choice for a pre-emergent for dallisgrass.
Yes, Trimec 992 Broadleaf Herbicide can be mixed with Dimension 2EW Herbicide. We would recommend doing a small tank test first to make sure there is no clumping between the two products.
Dimension 2EW Herbicide can be used to help prevent poa annua from emerging but will not effect any actively growing poa annua. Most products that are labeled for poa annua cannot be used on KBG as they are both cool season bluegrass types. We recommend that you spot treat the poa annua using a non-selective herbicide such as GlyPhoSel Pro and then reseed the areas.
Dimension 2EW Herbicide is a pre-emergent that is mixed at 0.28 - 0.73 oz. per 1,000 sq. ft. depending on the target weeds. Please refer to the product label for application rates specific to your treatment.
The label states: Do not use on Tifgreen 328 hybrid Bermudagrass as undesirable turfgrass injury may result. Other common and hybrid Bermudagrass varieties have shown to be tolerant of Dimension 2EW.
Yes, Dimension 2EW is safe to use around most established ornamentals and turf. There is a full list of tested ornamentals toward the end of the product label.