The Virginia Department of Forestry is seeking a contractor to perform treatments on invasive plants through foliar application with backpack sprayers at Conway Robinson State Forest in Prince William County and Whitney State Forest in Fauquier County, Virginia. The work consists of successfully identifying and treating patches of invasive plants within an approximately 32-acre parcel in Whitney State Forest and an approximately 67-acre parcel in Conway Robinson State Forest. Whitney: The work consists of successfully identifying and treating various invasive plants across an approximately 32-acre area as identified on the attached maps as Tracts 1-5, 8, and 17. The plots consist of upland hardwood forest, mainly open with some isolated patches of brambles. Plot 8 has larger patches of brambles that are difficult to navigate in some parts. The area is bordered by 2 creeks and is steep near some of the edges of the creek, but otherwise the land is flat or gently sloped. Treatments should not occur within 35 feet of any creeks or bodies of water. Target invasive species in the area include, but are not limited to, Rosa multiflora, Celastrus orbiculatus, Wisteria sp., Ampelopsis glandulosa, Euonymus alatus, Rubus phoenicolasius, Alliaria petiolata, Lonicera japonica, Hedera helix, Elaeagnus umbellata, Glechoma hederacea, Ailanthus altissima, Pueraria montana, Dioscorea polystachya, all found scattered throughout the tracts. A 4% glyphosate mix is approved for foliar treatment; basal bark treatments should be 20% triclopyr ester in penetrating oil. Any other chemicals must be approved by DOF staff prior to use. Marking dye should be included in the herbicide mixtures. Conway Robinson State Forest: The work consists of successfully identifying and treating various invasive plants across an approximately 67-acre area as identified on the attached maps as Tracts 12-17, 19-22. The terrain is mostly flat and open forest; some tracts have brambles which can be thick to traverse. Growing season foliar treatment should focus on, but are not limited to, Rosa multiflora, Celastrus orbiculatus, Wisteria sp., Ampelopsis glandulosa, Euonymus alatus, Rubus phoenicolasius, Alliaria petiolata, Lonicera japonica, Hedera helix, Elaeagnus umbellata, Glechoma hederacea, Ailanthus altissima, Pueraria montana, Dioscorea polystachya, all found scattered throughout the tracts. A 4% glyphosate mix is approved for foliar treatment; basal bark treatments should be 20% triclopyr ester in penetrating oil. Any other chemicals must be approved by DOF staff prior to use. Marking dye should be included in the herbicide mixtures.
