Stalker Isopropylamine 1 Quart Herbicide 27.6% Low Volume Basal Bark Treatments. The item "Stalker Isopropylamine 1 Quart Herbicide 27.6% Low Volume Basal Bark Treatments" is in sale since Sunday, October 14, 2018. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Gardening Supplies\Weed & Pest Control\Weed Control\Herbicides & Fungicides". The seller is "strngbean" and is located in Mulberry, Arkansas. This item can be shipped to United States.