These stalks should be burned or bagged and sent to the landfill. Wild parsnip can also be spot-treat with glyphosate or selective metsulfuron. CAUTION: Wear gloves, a long sleeve shirt and ...
Giant hogweed is sometimes confused with cow parsnip or poison hemlock, described here, which are two other plants that can also cause adverse reactions from contact: Giant hogweed is an invasive ...