Appendix L
Maintenance Level Guidelines
undesirable. The field can then be treated with a nonspecific herbicide such as glyphosate, which kills all existing vegetation. A boom sprayer towed behind a tractor is usually used. D. Approved herbicides The table below summarizes seven of the eight herbicides approved by the U.S. Forest Service for control of invasive plants and noxious weeds in prairie restoration activities.
Herbicide Trade names 2,4-D Generic Glyphosate Round-up, Generic
Target species Unaffected species Environmental characteristics
Broadleaf herbaceous plants
Most monocots, including grasses
Half-life in soil 7-10 days; safe for aquatic uses Half-life in soil several weeks; is inactivated by soil particles
Nonselective; grasses, forbs, vines, trees, shrubs
None
Sethoxydim Vantage
Grasses
Broadleaf herbs, sedges, woody plants Most monocots, including grasses
Half-life in soil 4-5 days
Triclopyr Garlon Broadleaf herbs and woody plants
Half-life in soil 30 days
Clopyralid Transline, Stinger
Broadleaf weeds
Grasses
Half-life in soil 40 days
Fosamine Krenite Woody plants Herbaceous plants less affected
Rapid degradation and high binding to soil particles Half-life in soil several months
Imazapic Plateau Grasses; some broadleaf species
Many broadleaf species
For more information on these herbicides go to www.ipaw.org/herbicides.aspx For all these herbicides, the label should be read and followed! It should be emphasized that herbicide use should be used as part of a total management system. As the table shows, none of these herbicides is completely specific. Care must be taken to ensure that sensitive non-target species are not treated. E. Summary Continued 1. 2,4-D . This herbicide is widely used for weed control in lawns and other urban settings. It is active against broadleaf plants (dicots) only; grasses are unaffected. In natural areas, 2,4-D can be used for spot spraying broadleaf weeds such as wild parsnip. However, if there are desirable broadleaf species nearby, hand pulling is preferable. 2. Glyphosate is a broad-spectrum herbicide and kills virtually all plants
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458 Naperville Park District | 2023 MASTER PLAN
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