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Giant Hogweed Statewide Distribution Map

A map showing reported site density of Giant Hogweed by county
Giant hogweed statewide density and distribution map

The following counties have confirmed hogweed sites. The list is organized by the number of sites in each county.

1-5 sites: Allegany, Chenango, Herkimer, Jefferson, Madison, Nassau, Onondaga, Otsego, Sullivan, Tioga.
6-10 sites: Chautauqua, Orleans, Putnam, Schuyler, Yates, Oswego.
11-15 sites: Genesee, Lewis.
16-25 sites: Broome, Cattaraugus, Cayuga, Ontario, Tompkins, Wayne, Wyoming.
26-50 sites: Livingston, Monroe, Niagara, Oneida, Steuben.
Greater than 50: Erie