Specifications include, but are not limited to: For all target species: Apply herbicide to the foliage of all live culms/leaves of the target species. Coverage should be wet just to the dripping point and cover a minimum of 75% of the plant. Foliar spraying may be used in areas where significant damage to non-target native vegetation can be avoided (i.e., in dense patches composed of 75% or more phragmites or phragmites stands of any density mixed with other non-native vegetation).; b. For all target species: For isolated plants or sparse patches adjacent to native vegetation, individual plants must be treated by a careful wick or hand application of herbicide to individual plants. Where plant size/configuration does not allow wick or hand applications the plants must be spot treated carefully to minimize non-target kill (such as using a downward application with a cone nozzle to control the diameter of spray).; c. For all target species: Seed heads must also be removed from isolated plants, securely bagged, and removed from the site (disposed in a dumpster). “Isolated” and “sparse” are generally stands of fewer than 50 seed heads and where the stands are more than 100 feet apart in all directions.; d. Treatment of non-native phragmites, non-native cattail and reed canary grass must occur after the majority of phragmites plants have tasseled (while plants are supplying nutrients to the rhizome), between August 15 – September 31, or prior to the date of the first killing frost, whichever comes first.; e. Purple loosestrife, flowering rush and frogbit treatments should be conducted as early as possible in the contract period for best results. ; f. Treat all solid stands, or relatively large areas dominated by purple loosestrife during the bud to mid-flower stage of growth. Only treat purple loosestrife plants that do not show evidence of clear/obvious and heavy defoliation by Galerucella beetles. Defoliation should be such that the plants are not going to flower. Flowering plants should be sprayed. ; g. For each flowering rush point treated, the contractor must note on the mapping form whether they were only able to treat stems (due to water levels) or whether both stems and basal leaves were treated.; h. Knotweed treatments should occur in September as the majority of flowers on each stand are fading. This may not be possible on resprouting stands that are stunted and no longer flower. Herbicide shall be applied to100% of ALL leaf foliage in each stand, up to the dripping point.; i. To survey and treat Lyme grass the contractor is expected to walk each zone once during the contract period with enough people/passes to ensure each area is surveyed thoroughly. Map and treat all target plants found. While lyme grass erodes away from one location, moves up and down the shoreline each winter and finds new locations each year, only three point locations were found when this work was performed last. Note seed head removal requirement above.
