Acclaim Extra is absorbed primarily through foliage. It's most effective during periods of active weed growth, and is rainfast about one hour after drying. Susceptible weeds stop growing, turn red or purple, then die within one week. Its timing and use is flexible, too.Check out my other items. The item "Acclaim Extra Herbicide 1 PT" is in sale since Tuesday, April 9, 2019. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Weed & Pest Control\Weed Control\Herbicides & Fungicides". The seller is "happygarden685" and is located in Sarasota, Florida. This item can be shipped worldwide.