Barricade 4FL Herbicide (prodiamine) - Gallon. In order for the product to work, Barricade 4FL applications should be made prior to germination of the targeted weeds; it will not kill or prevent weeds after they have already began to develop.
For control of the following weeds, an application should be made as early as January, or before weeds begin to germinate: Crabgrass Foxtails Goosegrass Barnyardgrass Henbit Chickweed Other winter broadleaf weeds Poa Annua (Annual Bluegrass). This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Weed & Pest Control\Weed Control\Herbicides & Fungicides". The seller is "lawnandpestcontrol17" and is located in this country: US. This item can be shipped to United States.