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.
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.
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 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 comes in a jug as shown on our site. This is a water dispersible granule you measure out dry and mix with water to spray. The only Prodiamine that should come in bags would be graular versions to be applied with a spreader.
Yes, Prodiamine 65 WDG (Generic Barricade) is a great pre-emergent to use on Tall Fescue to treat both Poa Annua and Poa Trivialis. You will apply 0.36lbs to 0.83lbs per 1,000 sq ft (1.0 to 2.30lbs per acre)
One 5 lb. jug of Prodiamine 65 WDG will treat up to 5 acres depending on the rate used. The shelf life is 3-5 years from the date of purchase if stored at room temperature.
You could mix a post-emergent herbicide or different pre-emergent herbicide with Prodiamine 65 WDG as long as the use sites are compatible, you are not using the same active ingredient in multiple products, and you calibrate the products to be used together. Any time you are mixing products together for the first time, it is recommend to perform a small test mixture first to ensure compatability. Keep in mind that post-emergent control (killing existing weeds) will be most effective when the weeds (in this case, dandelion) are young and actively growing. Another option would be to use a different pre-emergent, such as Dimension 2EW, which also lists Dandelion on the label.
We would need to know more information about your situation in order to recommend a post-emergent product for dandelion, such as where you want to use it (turf, ornamentals, etc.) and how much area you have to cover.
Once Prodiamine 65 WDG is diluted and tank mixed, the solution should be used within 24 hours, and should be properly disposed of according to instructions on the product label after that time.
Typically, apply fall pre-emergent between Sept. 1 and Sept. 15 to control winter weeds. Specifically, apply when soil temperature is 70 degrees and declining.
The first thing you need to know when using an herbicide such as Prodiamine 65 WDG is that the exact amount of water you dilute it with is not important. It is only important to make sure you are using the correct amount of product per 1,000 sq ft of lawn. Use too much and you risk damaging your lawn, use too little and you will not get adequate results. You will need to use 0.185-0.55 oz per 1,000 sq ft . To decide how much water you want to use, you should mark a 1,000 sq ft area, fill your sprayer with water ONLY, and start walking and spraying just as if you were doing the actual application of herbicide. When you are done walking and spraying the 1,000 sq ft area note how much water it took you to spray that area, and that is the amount you will want to mix 0.185-.55 oz of product with for each 1,000 sq ft area that needs to be treated.
Prodiamine will not prevent nutsedge as this is a summer weed that is best treat treated with a post emergent. It also will not effect any weeds that are already growing.
Prodiamine 65 WDG (Generic Barricade) is not labeled to prevent ryegrass and we apologize we are unable to find a pre-emergent that is labeled to do so.
Prodiamine 65 WDG is a solid, yellow, water dispersible granule.
Prodiamine 65 WDG is a great pre-emergent for prostrate spurge only, and there is a long list of tolerant ornamentals starting on page 15 of the product label. There are several types of Jasmine, Juniper, and sedum listed as tolerant. You may want to consider using Snapshot in your ornamental beds, instead, though. This pre-emergent label lists over 300 tolerant ornamental species and will prevent several types of spurge including both prostrate and spotted spurge. You can apply either of these products in Spring or Fall, although you definitely want to apply in Spring and possibly again in mid-summer for spurge prevention. Spurge also prefers high moisture areas, so be sure you address any drainage issues to help prevent this weed from thriving. Keep in mind that pre-emergents will only prevent new plants from germinating, not kill existing plants.
The SDS for the Prodiamine 65 WDG states that the product is odorless and has a yellow color.
Prodiamine 65 WDG (Generic Barricade) is not labeled for japanese stiltgrass and we are unable to find a pre-emergent that is. We would suggest a selective post-emergent such as Acclaim. Acclaim Extra is a selective post-emergence herbicide that controls annual and perennial grasses in turf including Japanese Stiltgrass. Please refer to product label for specific applications to your turfgrass.
Prodiamine 65 WDG is safe when used as directed around ornamental plantings. It is only a pre-emergent, used to prevent weeds emerging. It will not kill anything that is actively growing. It should not be applied over the top of newly planted ornamental plants but should be fine for established plants. Per the product label, should be safe around your junipers. Please refer to the product label for use rates and complete application instructions.
Prodiamine 65 WDG (Generic Barricade) should not harm most trees and is safe for Japanese Maple trees. You should keep the product from contacting the foliage.
Prodiamine 65 WDG (Generic Barricade) should not need to be reapplied after snow. More water in the area would just get it into the ground better. If you are doing a splilt application would be the only time a second application would be needed in the spring.
As long as the application of Prodiamine 65 WDG has had at least 24 hours without rain, there isn't a need to reapply. We would recommend delaying the application if you're expecting more than 1 inch of rain.
Prodiamine 65 WDG is a pre-emergent herbicide that must be applied before the seedlings begin to germinate, in order to be effective. For Poa Annua, we recommend doing a pre-emergent application in the fall, in order to prevent the weed from actively growing in the spring. Please refer to the product label for complete application instructions, and use as directed.
Poa annua is a winter annual weed that germinates in the fall and flowers in the spring, then dies as the temperatures rise in the late spring, early summer. In North Carolina, about 80% of poa annua germinates in a 60-day window from September 1 to October 30.
Please review our Poa Annua Treatment Guide for more infromation and recommendations on treatment.
