Barricade 4FL Herbicide is only mixed with a surfactant/adjuvant when being tank mixed with a post emergent product for actively growing weed control.
Barricade 4FL Herbicide has a three year shelf life from the date of purchase if stored away from extreme temperatures.
Barricade 4FL Herbicide can be mixed with other herbicides as long to provide a broader spectrum of weed control or to control emerged weeds. Make sure to follow instructions for rates and restrictions on each product label.
After an application of Barricade 4FL Herbicide pets should remain out of the treated area until it has had time to dry completely. Treated areas should dry within 2-4 hours. It will depend on the amount of sunlight and outside temperature for exact times.
Barricade 4FL Herbicide should be applied a few feet away from fruit trees and vegetable gardens. Also, it would be best to cover the garden if possible to be sure that no drift spray touches the growing plants. You may want to consider a product like Monterey Vegetable & Ornamental Weeder or Prowl H2O Herbicide. Monterey Vegetable & Ornamental Weeder is a pre-emergent herbicide that helps to control grasses and broadleaf weeds. This is one of the only products that is safe to use in vegetable gardens and can also be used in flowers, trees, shrubs, groundcovers, and rock gardens. Prowl H2O contains Pendimethalin as its active ingredient, which provides broad-spectrum residual control of annual grasses and certain broadleaf weeds in more than 100 crops.
Barricade 4FL Pre-Emergent Herbicide (Prodiamine)is safe for established Bermuda and other listed turf species as directed.
Barricade 4FL Pre-Emergent Herbicide (Prodiamine) should be used in a tank sprayer for best results. Herbicides are much different than other chemicals because water just acts as the carrier. I The rate is not provided per gallon of water but per area so would not work well in a hose end. Please read the product label to determine the exact usage rate for your needs as it varies according to the species of grass you have. We have a video here that can help explain how to calibrate your sprayer.
If the Barricade 4FL Pre-Emergent Herbicide (Prodiamine) was sprayed in early spring, then yes, you can overseed. The only time you can't overseed is if you apply the Barricade within 4 months of seeding.
Barricade 4FL Herbicide can be applied once or twice per year as long as you don't go over the 1.1 ounces per 1000 sq. ft per year(21 oz per acre/per year) for Turf Type Tall Fescue.
Doing a split application 60-90 days following the 1st application will give you longer residual control as opposed to a single application. We would recommend doing a second application at the 0.5 oz rate per 1000 sq ft to get the longer monthly residual.
Please review the charts of page 12 & 12 of the product label for more information.