Condy from Wilderville, Oregon writes
Killzall Weed and Grass Killer - 41% Glyphosate is labeled for poison oak but not directly labeled for the California Wild Grape. The active ingredient Glyphosate is a non selective herbicide known to be effective for California Wild Grape but will also kill any surrounding vegetation. For California Wild Grape, fall applications are best when the vines are preparing for winter dormancy and actively transporting nutrients back into their roots. Immediately after cutting the vines, paint the freshly cut surface with the herbicide undiluted. View the product label for more information.
Answer last updated on: 09/07/2022
