Yes, Prodiamine 65 WDG needs to be dispersed with water to get into the soil to prevent the weeds from germinating.
When using a pre-emergent such as Prodiamine 65 WDG, a surfactant is not needed. Only when you are using it as a post-emergent. The mixing ratio of the product with water will not change if you are adding a surfactant. Please review the product label for application instructions.
Prodiamine 65 WDG (Generic Barricade) should be watered in within 7-10 days of application for best results.
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 only a pre-emergent product and will only stop seeds from germinating. There are maximum rate that can be used per year so we would recommend checking the label with regards to what type of turf grass you have.
Prodiamine 65 WDG will be applied at use 0.36 - 0.83 oz of product per 1,000 sq ft in Tall Fescue and 0.185 - 0.55 oz of product per 1,000 sq ft in Kentucky Bluegrass and Rye. If your lawn is primarily Tall Fescue, you will apply at the rate of 0.36 oz/1,000 sq ft.
Prodiamine 65 WDG should not prevent tolerable turfgrasses from spreading into bare areas via stolons/runners.
The amount of area Prodiamine 65 WDG will cover depends on the rate you use per acre. The rate for bermudagrass is 1-2.3 lbs per acre. If you use the product at the low rate, you will be able to treat 5 acres. At the higher rate, you will be able to treat about 2.5 acres.
Prodiamine should not be applied during rain. It is preferred to apply prior to a rainfall or wait 24 hours following a rainfall. Be sure to irrigate the area after the product has been applied to activate it. Pre-emergents need to reach the thatch area to prevent the weeds from germinating, so irrigation is very important.
Yes, Prodiamine 65 WDG can be used on centipede grass.
Prodiamine 65 WDG (Generic Barricade) would need to be agitated if the mix is left to sit for 30 minutes or so. Otherwise once mixed it will stay soluble/mixed while in use.
For tall fescue turf, the maximum annual application rate for Prodiamine 65 WDG is 1 - 2.3 lbs per Acre, or 0.36 - 0.83 oz per 1,000 sq ft, per the chart on page 11 of the product label.
It is recommended that you wait at least 4 months after applying Prodiamine 65 WDG to overseed an area. Please refer to the chart on page 11 of the product label regarding reseeding interval relative to your region and the rate applied.
Yes Prodiamine 65 WDG would be a great product to use as a pre-emergent in rock bed areas, you would just need to use a higher water volume to ensure the product gets past the rock to the soil beneath it where the seeds would be germinating.
Herbicides such as Prodiamine will break down in the soil over time, and excess rainfall can increase how quickly that process happens. Ideally, Prodiamine 65 WDG should be watered in within 7 days of application, so unless the snow melts within that time it would be best to go ahead and water in 1/2 inch after application. 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.
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.
Yes, that is exactly right. Prodiamine 65 WDG (Generic Barricade) would be applied at the rate of 0.28 oz per 1000 sq. ft. if you want to make 3 applications.
You can mow 2 days before Prodiamine 65 application and two after application.
Prodiamine 65 WDG and Quali-Pro Prodiamine 4L are different formulations. At the lowest rate the 4L covers more area.
On Bermuda grass you can use up to 2.3 lbs of Prodiamine 65 WDG per Acre per year, which breaks down to 0.83 oz per 1000 sq ft. You can split up this amount into as many applications as needed. So if you are doing applications in Spring and in Fall, then your maximum rate at those times is 1.15 lbs/A (0.415 oz/1000 sq ft). You want to apply in late Summer or early Fall before soil temperatures dip below 70 degrees for poa annua prevention. In late Winter/early Spring, apply before soil temperatures reach 55 degrees to prevent crabgrass. In a warm place like Texas, you wil probably want one applcation in late Feb or March and then a second application 6-8 weeks later. If you are doing this, then you would lower that Spring rate to 0.2 oz per 1000 sq ft.
You can use this online tool to check soil temperatures for your area at any time.
If you are going to be planting in the area you would like to use Prodiamine 65 WDG it would be best to plant first then apply the product so that you are not disturbing the barrier in the soil but applying before planting. It will only prevent seeds from germinating and is actually labeled to be used in landscape planting. The label states: Delay application to newly transplanted ornamentals until soil has settled around transplants.
