Barricade 4FL Pre-Emergent Herbicide does not kill weeds or grasses. It will only keep the weeds listed on the label from germinating and is safe for the listed turfgrasses. Please see the label for a full list of targeted weeds and full application instructions.
You would just squeeze the bottle to get the needed amount into the measuring chamber on Barricade 4FL Pre-Emergent Herbicide Following the instructions for the "squeeze and pour" bottle in this video should help. It says for "insecticides", but it will work for this too.
Barricade 4L would not prevent bermuda nor any other turfgrass from growing in a St Augustine grass lawn and there is product that will.
As with any pre-emergent you do have to water in after application to get down into the soil to create the barrier. Per the product label: Weed control is most effective when Barricade 4FL is activated by at least 0.5 inch of rainfall or irrigation or shallow incorporation (1-2 inches) before weed seeds germinate and within 14 days following application.
After sufficient water at the time of Barricade 4FL Pre-Emergent application, you will water now if no rainfall is expected/no irrigation to the area.
Eastern White Pine and Virginia Pine are both labeled to be tolerant to using Barricade 4FL. Please refer to the product label for more information.
There should be no issue if applied at the product label rates. The shelf life of Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is 3-5 years if kept in a cool dry area.
Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is not labeled for prevention of dandelion. You could use Dimension 2EW or Gallery 75 DF as a pre-emergent for dandelion in the fall.
Barricade 4FL Herbicide is not specifically labeled to be used around clover, so we cannot advise on this. For the best time to apply a pre emergent in your region to get the most effectiveness, we would recommend reaching out to your Master Gardener at your county extension office for a recommendation.
Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is not labeled for pre emergent control chamberbitter. Barricade 4L can be used and sandy soil and last for the standard time frame of 3-4 months.
View our Chamberbitter Treatment Guide for more information.
Pre emergents are best applied in late fall when soil temps drop to 70 degrees and then again in early spring when soil temps rise to just under 55 degrees. Please view our Lawn Care Schedule Calendar for timing recommendations or contact your Cooperative Extension Office for exact timing recommendations in your area.
Yes, Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is safe on fescue when used as directed on the product label.
Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is only a pre-emergent, used to prevent weeds from emerging. It will not kill anything that is actively growing. You will wait until the new lawn is established (mowed at least twice) before you apply Prodiamine. Blindside Herbicide WDG is a post-emergent that is safe to apply to established centipede grass to get rid of spurge.
When applying Barricade 4FL Pre-Emergent Herbicide (Prodiamine) the wait time to seed or overseed would vary depending on the rate that was used. It can be anywhere between 4-12 months after the application. Please refer to the product label for the full chart.
The rate per acre for Barricade 4FL Pre-Emergent Herbicide (Prodiamine) depends on the turfgrass being treated. Please refer to the Rate Chart on page 13 of the product label for recommended rates per acre.
The active ingredient Prodiamine in Barricade 4FL Pre-Emergent Herbicide (Prodiamine) is not labeled for sandburs.
Pre emergents containing the active ingredients Dithopyr (Dimension 2EW) or Pendamethalin (Pendulum 2G Herbicide) would be recommended for preventing sandburs from germinating.
Yes, you are correct. As with most herbicides the exact volume of water is not very important, you just need to be sure you are getting the correct amount of product on a specific area, such as 1,000 sq. ft. What you are referring to on the label is the total amount of active ingredient that is in each gallon of product.
Revolver Selective Herbicide can only be applied by licensed applicators and not for use by residential homeowners.
If overseeding, you will need to either wait until the new seed has established (after 2 mowings or 30 days) before applying Barricade 4FL Pre-Emergent Herbicide (Prodiamine) otherwise, you will need to wait 4 months after applying Barricade to overseed.
Yes, Barricade 4FL Pre-Emergent Herbicide can be applied to creeping juniper and other listed varieties of juniper as directed.
You need to wait at least four months after applying Barricade 4FL Pre-Emergent Herbicide (Prodiamine) before you can put down new sod.
Refer to the chart on page 15 of the product label indicating minimum wait times depending on your location, the rate it was applied and what turgrass type you will be seeding.
