2019 Proposed Herbicide Treatments

U.S. Department of the Interior
National Park Service
Alaska Exotic Plant Management Team



Denali National Park & Preserve
  • Bird Vetch in the park entrance area –Because of the persistent qualities of Bird vetch and the ineffectiveness of manual control, herbicide treatments will continue in 2019.
    Proposed treatment area: 0.25 acres
    Proposed herbicide: Milestone
    Proposed application: June-July
  • Narrowleaf Hawksbeard at the sewage lagoon - This infestation had been manually controlled in the past with no decrease in the infestation size or density. Herbicide treatments are necessary to target smaller persisting populations within the sewage lagoon area.
    Proposed treatment area: 0.25 acres
    Proposed herbicide: Milestone
    Proposed application: June-July
  • Yellow Toadflax at the railroad depot - This infestation had been manually controlled in the past with no decrease in the infestation size or density. Herbicide treatments are necessary to effectively control this species.
    Proposed treatment area: 0.0001 acres
    Proposed herbicide: Milestone
    Proposed application: June-July
  • Ground Clover in park entrance area - This infestation that had been manually controlled in the past with no success. Herbicide treatments are necessary to control this species effectively.
    Proposed treatment area: 0.0006 acres
    Proposed herbicide: Milestone
    Proposed application: June-July
  • Common Dandelion at the Kantishna Airstrip, Fanny’s cabin, Quigley Ridge Trailhead, and Mile 70-85 on park road – Past manual removal has had some success. These sites will be treated with herbicide as this is the only effective means of control for this species.

  • Proposed treatment area: 0.25 acres
    Proposed herbicide: Milestone
    Proposed application: June-July
  • Big Leaf Lupine at Mile 7 of park road - Past manual removal has had no success. This site will be treated with herbicide as this is the only effective means of control for this species.
    Proposed treatment area: 0.0005 acres
    Proposed herbicide: Milestone
    Proposed application: June-July
  • Flixweed at the Tek Gravel Pit – This pit is used for top soil in restoration projects. Herbicide is the only effective means of control for this species.
    Proposed treatment area: 5 acres
    Proposed herbicide: AquaMaster
    Proposed application: June-July
  • Pineapple Weed, Lambsquarters, and Chickweed in the Kennel’s compost pile area. Past manual removal has had no success. This site will be treated with herbicide as this is the only effective means for these species.
    Proposed treatment area: 0.0008 acres
    Proposed herbicide: Milestone
    Proposed application: June-July

Katmai National Park & Preserve

  • Dandelion at Various Locations and Lodges – Herbicide treatments have been very successful at reducing dandelion density and enabling native plants to re-establish at Fure’s Cabin and Brook’s Camp Campground.
    Proposed treatment area: 0.89 acres
    Proposed herbicide: Milestone
    Proposed application: June, preferred
  • Sheep Sorrel, Fall Dandelion, and Common Dandelion at Lake Camp - Manual control of these species in the past had no effect. Herbicide treatment is necessary for effective control.
    Proposed treatment area: 1.82 acres
    Proposed herbicide: Milestone
    Proposed application: June to August
  • Shepherd’s purse at Brooks Camp - Herbicide treatment is necessary for effective control.

    Proposed treatment area: 0.5 acres
    Proposed herbicide: Milestone and 2, 4-D
    Proposed application: May to September

Kenai Fjords National Park
  • Exit Glacier area - Common dandelion, big chickweed, oxeye daisy, and white clover infestations located around the Exit Glacier area. Populations of grasses including smooth brome and meadow foxtail along Herman Leirer Road. Annual bluegrass along trails and around buildings. These populations were manually controlled in the past with little decrease in population and have responded well to herbicide treatments.
    Proposed treatment area: 1.7 acres
    Proposed herbicide: Milestone and AquaMaster
    Proposed application: June - August

  • Coastal Fjords. There are two common dandelion infestations in the coastal area of the park. One is found on a hillside south of Dinglestadt Glacier in McCarty Fjord. The other site is located at the head of North Arm in Nuka Bay. It is located in an undisturbed area in the meadow on the east side at the head of the bay. These site are responding well to herbicide treatment. Herbicide treatments are necessary to control this remote population that only can be visited once per summer.
    Proposed treatment area: 0.017 acres
    Proposed herbicide: Milestone
    Proposed application: July – August

  • Maintenance facility - A variety of invasive plants are being treated in the maintenance facility yard including common dandelion, annual bluegrass (Poa annua), common chickweed (Stellaria media), mouse-ear chickweed (Cerastium fontanum), pineapple weed (Matricaria dicoidea), and common plantain (Plantago major). These invasive plant species were manually controlled in the past with no decrease in the size or density of the population and are responding well to herbicide treatments.
    Proposed treatment area: 0.23 acres
    Proposed herbicide: Milestone and AquaMaster
    Proposed application: June – September

Wrangell-St. Elias National Park & Preserve

Locations

Park Headquarters in Copper Center
Proposed treatment Area: 3.25 acres

Joint NPS/BLM Maintenance Yard in Glennallen
Proposed treatment area: 2.9 acres

Ranger Station & Seasonal Housing in Slana
Proposed treatment area: 0.5 acres


Kuskulana Gravel Pit, Mile 17 on the McCarthy Road
Proposed treatment area: 2 acres

Proposed Herbicides
Milestone
Manufacturer: Dow AgroSciences
EPA Registration Number: 62719-519


Proposed Application Window
May 1st through September 15th

Last updated: April 24, 2019