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- Giant hogweed (Heracleum mantegazzianum) is on the federal and Ohio noxious weed lists making it unlawful to propagate, sell or transport.
ohioline.osu.edu/factsheet/anr-35
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Sep 18, 2020 · The “line fence law” or “partition fence law” in Ohio requires landowners in unincorporated areas to cut all noxious weeds, brush, briers and thistles within four feet and in the corners of a line fence.
May 27, 2006 · For the current list of prohibited noxious weeds, see OAC 901:5-37-01. There is also a list of prohibited and restricted weed seeds, which can be found at OAC 901:5-27-06. The following plants are designated "prohibited noxious weeds": Grapevines (Vitis spp.) when grown in groups of one hundred or more and not pruned, sprayed, cultivated, or ...
- Identification
- Control of Giant Hogweed
- Acknowledgements
- References
- Photo Credits
Giant hogweed is an herbaceous dicotyledonous plant that is classified as having a biennial life cycle. It is a member of the Apiaceae (Umbelliferae)family of plants, commonly known as the Carrot or Parsley family. It can live for several years but once it flowers and bears fruit it dies. Giant hogweed is hardy to zone 3 and prefers full sun and mo...
Gardeners, landscapers, surveyors, nurserymen and farmers should exercise caution around this plant. As was mentioned previously, the plant juices can cause phytophotodermatitis. If the plant sap comes in contact with the skin in the presence of sunlight, a severe rash and/or blistering can occur. Therefore, extreme caution should be taken when con...
The authors would like to thank Dr. Jörg Ochsmann, Dr. Mads A. Sorensen, and the USDA-APHIS office for their photo contributions. A special thank you is extended to Settillo Codispoti for allowing OSU Extension educators to learn more about giant hogweed at his farm in Pierpont, Ohio. Reviewers of this document included: Jeff Stachler, Weed Scienti...
Neilson, C., Ravn, P., Nentwig, W., & Wade, M. (2005). The Giant Hogweed Best Practice Manual. Horsholm, Denmark: Forest & Landscape Denmark. (Online). Retrieved August 2005. researchgate.net/publi...United States Department of Agriculture, Animal & Plant Health Inspection Service (2002). Giant Hogweed.(Online). Retrieved August 2005. aphis.usda.gov/lpa/pubs/fsheet_faq_notice/fs_phhgweed.pdf (n...Mayer, L. (n.d.). Comparison of Management Techniques for Heracleum mantegazzianum in North and Central Europe.(Online). Retrieved August 2005. horticulture.coafes.umn.edu/vd/h5015/00papers/mayer.h...King County Washington (2004). Best Management Practices for Giant Hogweed.(Online). Retrieved August 2005. dnr.metrokc.gov/wlr/LANDS/Weeds/pdf/hogweed-control.pdf (no longer available online).Figures 1, 4, 5, 6, 7, 8 and 9. Photos courtesy of David Marrison, OSU Extension.Figure 2. Photo courtesy of the USDA-APHIS.Figure 3. Photo reprinted with permission from Dr. Jörg Ochsmann, Germany.Figure 10. Photo reprinted with permission from Mads A. Sorensen, Denmark.May 29, 2024 · If noxious weeds are along a public roadway, Ohio law requires counties, townships and municipalities to cut or destroy the noxious weeds every year between June 1 and 20, August 1 and 20, and if necessary, September 1 and 20, or whenever it’s necessary to destroy the vegetation to prevent or eliminate a safety hazard. ORC 5579.04 and 5579.08.
Jun 19, 2018 · Giant hogweed, the nasty invasive plant that’s currently in the news — experts discovered it for the first time in Virginia recently — has been found in scattered places in Ohio for a number of years, especially in Ashtabula County in the state’s far northeastern corner.
Giant hogweed is not prevalent in Ohio but has been located in isolated stands in eastern Ohio and neighboring states. Giant hogweed prefers moist soil around waterways and is tolerant of shade but can also grow in full sun in dry soils around ditches.
Ohio Noxious Weeds. Ohio laws and rules. 2019. Prohibited noxious weeds. Ohio laws and rules. ... giant hogweed: Heracleum mantegazzianum Sommier & Levier: Apiaceae ...
