Invasive Plants: How to Identify and Remove

  1. IDENTIFY:  See the resources below.
  2. REMOVE: Lathrop volunteers are using several methods for removing invasives:
    1. Hand pull:  Disturb the ground as little as possible, lest you open it up for new seeds to sprout. Hang the pulled plant on the branch of a shrub, or put it on top of a rock or fallen branch so it dries out and cannot reroot.  If the plant has flowers or seeds, remove those to the “garden waste” receptacles on our land.  Most useful for garlic mustard and small shrubs/vines.
    2. Chop off: You can cut off the blossoms of purple loosestrife (leave the leaves and stems as food for the beetles we introduced in 2016, which will eventually reduce the purple loosestrife).  Remove the blossoms to our “garden waste” receptacles; they can still produce seed even if the plant has been pulled up.  Chopping off some other plants, such as multiflora rose or buckthorn, only encourages them.  Instead, use cut-stump.
    3. Cut-stump.  Cut the shrub or vine as close to the ground as you can and, within 10 minutes, use a Buckthorn Blaster to paint the stump with herbicide.  (Buckthorn blasters with appropriate herbicide and instructions are available from Barbara Walvoord at walvoord@nd.edu).  Volunteers should not use herbicide in wetlands or within 100′ of open water.

RESOURCES FOR IDENTIFYING INVASIVE PLANTS AT LATHROP

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Nurturing Lathrop’s native plants and wildlife.

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