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NYSDEC Giant Hogweed Control Program

View the 2015 Giant Hogweed Program Annual Report (PDF, 3.2 MB)

The NYSDEC Giant Hogweed Control Program will control the giant hogweed (GH) plants on your property free of charge. From late April through August, the program hires eight field crews across the state employing 12 field technicians. NYSDEC crews use the appropriate giant hogweed control method at each site. In general, herbicide control is used at larger sites with greater than 400 plants, root-cutting control is used at smaller sites with less than 400 plants, and flower/seed head removal is used at all sites to limit seed dispersal.

How do you report a site for control?

Call the giant hogweed hotline at (845) 256-3111 or email DEC and give detailed directions to the plant infestation (GPS coordinates and street address a plus), an estimated number of plants, and provide photos. Please make sure to not touch the plants when you take the photos. The best photos to take are:

  1. One picture of the whole plant - so we can see how tall it is
  2. Pictures of the basal (bottom) leaves
  3. Close-up of the stem where the leaf stalk connects
  4. Flower head (include one from the bottom/side so the number of flower rays/stalks can be roughly counted) - if only dead seed head from last year is available, that is okay, too
  5. Close-up of seeds

Email to the address above or send photos to:

NYSDEC Division of Lands & Forests
Giant Hogweed Program
21 South Putt Corners Road
New Paltz, NY 12561

What happens when giant hogweed is confirmed?

If giant hogweed is confirmed through the photos, the landowner will be sent a packet that contains a letter of notification, a document on control methods, and a permission form to be signed and returned to the NYSDEC. The form will give field crews consent to enter the landowner's property and control the giant hogweed plants. That site will be controlled some time between April and September and will be on a list to be revisited in following years until the plants are eradicated. When no more plants are found, the site will be monitored for three subsequent years.

Funding

The NYSDEC Giant Hogweed Control Program has received funding from a federal American Resource and Recovery Act grant, USDA-APHIS, USDA-Forest Service and New York State.

Accomplishments

NYSDEC Giant Hogweed Control Program Accomplishments 2006-2015.
2006-2015 2006 & 2007 2008 2009 2010 2011 2012 2013 2014 2015
# of hotline calls NYSDAM,
sites visited by DEC
200 660 912
1,976
967
592
1,019
1,099
# of hotline
e-mails
N/A N/A N/A 237 861 1,045 801 1,472 1,315
# of website
visits
N/A 6,373 10,770 25,066 307,444 65,044 345,665 642,798 535,516
# of sites root-cut controlled N/A 130 195 402 538 494 593 556 761
# of plants root-cut controlled N/A 10,558 13,354 39,411 73,793 38,781 43,023 22,255 34,422
# of sites herbicide
controlled
N/A N/A 146 210 270 347

486

551 444
# of plants herbicide controlled* N/A N/A 871,000 1,177,000 1,482,000 375,000 637,000 397,000 454,000
# of sites monitored** (no plants found) N/A 64 106 139 204 282 251 354 448
# of new sites 60 122 158 341 234 179 183 226 188
# of sites
with plants
346 433 539 805 959 1,010 1,188 1,259 1,309
# of sites with
no plants (includes eradicated sites)*
N/A 64 106 139 207 339 348 501 639
# of eradicated sites N/A N/A N/A 28 55 97 149 239 277
# of DEC control
staff hired
N/A 6 7 13 15 11.5 13 13 14
Funding
source
State & Federal State & Federal State & Federal ARRA & Federal ARRA State State & Federal State & Federal State & Federal

* Monitored sites have had prior control but no GH regrowth/plants were found during the latest yearly field season's monitoring visit. After three consecutive yearly visits with no plants found, a site is deemed eradicated.

** Starting in 2012 we used a different but more consistent method of calculating the number of plants controlled by herbicide to allow for better comparison to future plant counts. 2012 and later calculations are based on the amount of herbicide used; prior year plant counts were calculated using crew plant density estimates.


  • Contact for this Page
  • NYSDEC Forest Health & Protection Program
    21 South Putt Corners Road
    New Paltz, NY 12561
    845-256-3111
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