MSMA is a strong product and it's labeled for commercial use only, if not used appropriately it can burn any type of grass. We would not recommend to mix MSMA with Prodiamine; instead, spot treat with MSMA and you can do a broadcast application with Prodiamine 65 WDG.
Per the product label for Prodiamine 65 WDG (Generic Barricade): Injury to desirable seedlings is likely if Quali-Pro Prodiamine 65 WDG is applied before the secondary roots of seedlings are in the second inch of soil (not thatch plus soil). To reduce the potential to injure overseeded turf, wait 60 days after seeding or until after the second mowing, whichever is longer, before applying Quali-Pro Prodiamine 65 WDG.
To avoid turfgrass injury, do not apply Prodiamine 65 WDG to newly set sod until the sod has rooted and exposed edges have filled in.
Per the manufacturer, as long as you had watered in the Prodiamine with 1/2” of water after application, this would have washed the product off of the leaf blade and put it down into the soil so, then you can compost your grass clippings. If you did not water it in after application, then no, you would not want to compost your clippings.
Prodiamine 65 WDG (Generic Barricade) is non-staining and is safe when used as directed around ornamental plantings.
The 5 lb container of Prodiamine 65 WDG (Generic Barricade) is equivalent to 80 fl oz. The 0.55 oz that is the is the maximum amount that can be applied to your lawn annually is equivalent to 3.3 tsp.
Prodiamine 65 WDG (Generic Barricade) can be applied to your lawn after the second or third mowing to prevent listed weeds from germinating. Please refer to the product label instructions for more details on safety of the application.
Yes, Prodiamine 65 WDG (Generic Barricade) still functions as an effective pre-emergent even after adding a surfactant. A surfactant helps products penetrate the natural waxy tissue of plants and increases the effectiveness. When using a pre-emergent such as Prodiamine 65 WDG a surfactant is not needed.
You can water the area treated with Prodiamine 65 WDG 24 hours after application.
You could potentially apply a light top dressing on your lawn after using a pre-emergent such as Prodiamine 65 WDG. Be sure that the pre-emergent is activated with at least 1/4 inch of irrigation or rainfall in accordance with the product label instructions.
A concern with your question is that you mention you will be reseeding your lawn, in which case you cannot apply the Prodiamine (or most other pre-emergents) before you seed the lawn. The Prodiamine will prevent your new seed from germinating. So you would either need to seed first and then wait until the new lawn is established (mowed at least twice) before you apply Prodiamine, or you need to wait several months after applying the Prodiamine before you put down new seed.
Prodiamine 65 WDG (Generic Barricade) would be applied at the rate of 1.5 lbs per Acre to achieve the longest residual of up to 8 months. Quali-Pro Prodiamine 65 WDG may be applied more than once a year as long as the total amount applied is not greater than the maximum application rate per calendar year for the turf species. The max rate per year for this product on bermuda grass is 1.0 - 2.30 lbs per Acre.
Prodiamine 65 WDG has a shelf life of 3 years as long as it's stored in a dry, cool place.
Prodiamine 65 WDG (Generic Barricade) is applied at the rate of 0.37-0.83 oz per 1,000 sq ft (with sufficient water to disperse the product over the 1,000 sq ft) on Centipede lawns. Please refer to the product label for complete mixing and application instructions.
Prodiamine 65 WDG will inhibit the development of turfgrass species overseeded too soon after application. It will depend upon the rate of product used per acre as to how many months you need to wait before reseeding. At the minimum use rate, you need to wait 4 months before reseeding. Please refer to the product label for complete instructions on reseeding.
Prodiamine 65 WDG (Generic Barricade) is safe to use on established St. Augustine grass.
Since Prodiamine 65 WDG and Trimec are both different products, used at different times, there would be no need to mix the two. Prodiamine 65WDG is used in the spring and the fall before weeds have germinated and come up. That would not the the time for a post emergent like Trimec. Trimec is used when weeds have already sprouted and are actively growing in temperatures between 65 and 85 degrees, which is not the appropriate time to use Prodiamine 65WDG.
Prodiamine 65 is a WDG (water dispersible granule) formulation which means it must be mixed in a tank sprayer of some sort and applied that way rather than through a hose end sprayer. Hose end sprayers also are not as accurate as tank sprayers and have no way to regulate at what point you have put out a certain amount of product to keep from under or over applying.
Prodiamine 65 WDG (Generic Barricade) can be applied to a grass with dew just be sure to also water it in 1/2 inch after application.
Both Prodiamine 65 WDG and Tenacity Herbicide are labeled for Poa Annua. Prodiamine 65 WDG should be able to better control Poa Annua, just follow the label instructions. Make sure the product is labeled to be tolerated by your turf and check for the best time in Fall for application with your local Cooperative Extension Office. You want to wait 6-8 weeks after Prodiamine 65 WDG (Generic Barricade) application to overseed.
You want to keep the Prodiamine 65 WDG at least a few feet away from the vegetable garden and be sure that no drift spray would touch the growing plants.
