Specifications include, but are not limited to: The work covered under this solicitation shall consist of the labor, equipment, materials, tools, transportation, and incidentals necessary for mechanical/chemical treatment of invasive woody shrubs on 43 acres in the Isinours State Forest Unit in Fillmore County, Lewiston Area.; Treat invasive woody shrubs on 43 acres of a site in the Isinours State Forest Unit using a combination of mechanical and chemical methods:; Stem treatment: Basal bark spray or cut and stump treat buckthorn and honeysuckle greater than ½” in diameter. Basal bark or foliar treat all Japanese barberry and multiflora rose. Use Garlon 4 Ultra and bark oil and/or Garlon 3A with surfactant or similar product labeled for forestry use (38 acres, see map). Basal bark treatment may be used on stems less than 4” in diameter. Cut stump treatment must be used on stems 4” or greater in diameter.; Basal bark and cut stump treatments must be done with color dye and in a manner that thoroughly wets the target trunk from the root collar up the stem (at least 12” for basal bark), but not to the point of runoff. All cut stump applications of herbicide must be done within 1 hour of cutting stem.; Foliar treatment: In addition to basal bark treatment of larger stems (see above) foliar treat all buckthorn and invasive honeysuckle greater than 2 feet in height (7 acres, see map).; Forestry mowing and foliar treatment: Mow all buckthorn, honeysuckle, Japanese barberry and multiflora rose in designated area (4.7 acres, see map). Desirable species are not to be mowed where possible. Those species include oak, pine, walnut and black cherry. Where trees need to be removed for access, prioritize elm, ash and boxelder for removal.; In mid- to late-fall after mowed area has re-sprouted, treat invasive brush with a foliar application of Garlon 4 Ultra, Garlon 3A or similarly labeled product at label recommended rates (4.7 acres, see map). Treatment is to be timed after native hardwood plants have gone dormant, sometime in mid-late October.; Equipment: Contractor must have a tracked forestry mower capable of maneuvering among trees. Chainsaw will be needed for cutting stem’s greater than 4” in diameter.; Site Access: The site is accessible across mowed forestry trails from the parking lot at the south end of the unit.; Project timing: Basal bark or cut stump treatment can be done anytime from mid-summer through the end of winter (February 28).; Forestry mowing and follow up foliar application should be done to allow enough time for mowed plants to resprout and for foliar application to minimize impact on native woody species. Foliar application should happen from mid-October to mid-November, depending on leaf drop.
