PDF-Giant Hogweed Identification and Control

Authored by Michael Flessner Associate Professor and Extension Weed Science Specialist School of Plant and Environmental Sciences Virginia Tech and Jordan Metzgar Curator of the Massey Herba. www.invasives.saanich.ca Leaves: Large, very deeply lobed with jagged edges; up to 2.5 m long. Blooms in May to July: flower heads are much smaller to only 0.2 m diameter. and 5 to 10 cm in diameter. Giant Hogweed(Heracleum mantegazzianum) Giant HogweedGiant cow parsnip is a perennial plant and a member of the carrot family. It is a garden ornamental from southwest Asia that is and becoming more common to spread readily and grows along Giant Hogweed Heracleum mantegazzianum) is a very large perennial plant that towers over a grown person, reaching up to 5 m (16 ft) in height. Giant Hogweed is a public safety hazard due to its causti . Create thickets in standing water and wetlands.. Fragments of the yellow flag can form new plants when they break off. . Density poses a threat to native wetland species as it excludes plant and animal diversity. . Invader of the NortheastCharles R. O’Neill, Jr.New York Sea Grant New York Sea Grant SUNY College at Brockport, NY 14420Tel: (585) 395-2638 Heracleum mantegazzianum Should you be walking along a Giant HogweedGiant cow parsnip is a perennial plant and a member of the carrot family. It is a garden ornamental from southwest Asia that is and becoming more common to spread readily and grows along ,. . if. hogweed . is. . mowed. . regulary. . - all vegetation (from May t. ill. October) once a week. .. /. Barščių pjovimas/šienavimas . yra veiksmingas, . jei atliekamas reguliariai, kartą per . F A C T S H E E T 380 Jefferson Street , Port Townsend WA 98368 360 379 - 5610 Ext. 205 noxiousweeds@co.jefferson.wa.us http://www.co.jefferson.wa.us /WeedBoard GIANT HOGWEED (Heracleum mantegazzia Giant Hogweed Life Cycle DEC Lands and Forests sta conducting hogweed control How Can You Help?Learn to Identify Giant Hogweed • Use this brochure or visit www.dec.ny.gov/animals/72766.html (1) An attractive but dangerous federal noxious weed. Have you seen this plant in Michigan? Giant hogweed is a majestic plant that can grow over 15 feet. Although attractive, giant hogweed is a public Giant Hogweed Heracleum mantegazzianum) is a very large perennial plant that towers over a grown person, reaching up to 5 m (16 ft) in height. Giant Hogweed is a public safety hazard due to its causti Giant Hogweed(Heracleum mantegazzianum) BLEED ontario.ca/invasivespecies ForewordThese Best Management Practices (BMPs) are designed to provide guidance for managing invasive ) in Ontario. They were d Spatio. -temporal Model Integrating . Multiscale. Monitoring Data. Sylvia . Moenickes. & Jan Thiele. Review by Alex . Coster. and Kateryna Baranova. Source: https://. bcinvasives.ca. /images/photos/_full/Giant_hogweed012_FrValleyRegDist_1.jpg.