Appendix L
Maintenance Level Guidelines
conducted at irregular intervals during spring or fall so that on average, the site is burned at a minimum of once every four to six years.
PART 2 – INVASIVE REMOVAL 2.1 Materials:
A. Herbaceous species to be removed in areas without standing water or saturated soils shall be treated with Glyphosate, N-(phosphonomethyl) glycine, trade name Roundup or equivalent. B. Other chemicals with specific effects may also be used including, pre-emergent, broadleaf, and grass-specific herbicides. C. Herbaceous species to be removed in areas with standing water or saturated soils shall be treated with Glyphosate, N-(phosphonomethyl) glycine in a form approved for aquatic applications such as Rodeo or equivalent. D. Herbicide to be used for treating woody species shall be triclopyr: 3, 5, 6-trichloro-2- pyridinyloxyacetic acid, butoxyethyl ester, trade name Garlon or equivalent. PART 3- EXECUTION 3.1 Method – Herbicide Application: A. Treat all undesirable perennial and biennial species with an approved herbicide. B. Undesirable perennial and biennial species include all vascular species not native to northeastern Illinois, as published in Plants of the Chicago Region (1994). C. Applications: Spot spraying - For most herbicide applications in natural areas, spot spraying is preferred. This permits application of the chemical just to target species. Foliar application should be made with a low-pressure (20-50 psi) backpack sprayer equipped with a wand applicator. A sprayer nozzle which creates a flat or cone-shaped pattern is preferable. The herbicide should be allowed to dry for at least two hours to ensure adequate absorption. (Do not spray when rainfall is threatened.) Addition of a nonionic surfactant to the mixture helps ensure complete leaf coverage and increases the rate of absorption. The herbicide should thoroughly cover the foliage but not to the point of run-off. Personnel applying herbicide must be properly trained, licensed and knowledgeable about the native vegetation. Broadcast spraying in natural area restoration is used primarily when a fallow field is to be planted to prairie. It must be ascertained first that all of the existing vegetation is
7
457
Naperville Park District | 2023 MASTER PLAN
Made with FlippingBook - Share PDF online