Crown vetch seed shall be inoculated according to the supplier's recommendations. However, when seeding with the hydroseeder the inoculant shall be increased to five times the recommended rate. If test results indicate noncompliance with the above germination or purity requirements, or both, additional seed may be added to give the equivalent germination or purity, or both. The Division reserves the right to test, reject or approve all seed after delivery on the project.
715.29 Inoculating Bacteria :
This material shall be used to treat all leguminous seed and shall be a pure culture of nitrogen fixing bacteria selected for maximum vitality and ability to transform nitrogen from the air into soluble n itrates and deposit them in the soil. It shall not be more than one year old.
715.30 through 715.32 : Blank
715.33 Vines and Ground Cover Plants :
This material shall have a healthy, well -formed root system, free from disease. All transported stock is subject to inspection by the State Agriculture Department for insect or plant pests, and subject to rejecti on if found lacking in any of the above requirements. All plants shall be nursery grown, two years or older, and of the quality and size designated on the Plans, subject to approval both at the nursery and on the planting site. All vines and ground cover plants shall meet the requirements of U.S.A. Standard for Nursery Stock, AAN. The 1969 edition shall govern unless a more recent issue is in effect at the time of advertisement of bids. For vines and ground cover plants, a listing by standard names in e ffect on any date is on file with the Division and is available on request. 715.34: Blank
715.35 Trees and Shrubs :
Plants shall be healthy with well-developed root systems and top growth for the species and shall be free of injury from disease, insects or other causes. All plants shall be true to type and name in accordance with "Standardized Plant Names" where applic able. Plants shall conform to the requirements of U.S.A. Standard for Nursery Stock, AAN. The 1969 edition shall govern unless a more recent issue is in effect at the time of advertisement of bids. Collected plants shall be native or naturalized trees or shrubs growing in soils favorable for digging. The soil shall be of such character as to be readily retained on the roots of transplanted trees and shrubs. The minimum root spread of bare -root collected plants shall be at least one t hird greater than that for nursery grown bare -root plants. Nursery grown stock, balled and burlapped for shipment, shall have ball sizes conforming to an AAN Standards. In the case of collected plants, ball sizes shall be at least 10 percent (10%) greate r in diameter than those specified for nursery grown stock and shall be of sufficient depth to include the greater portion of the root system. For ornamental flowering trees, deciduous and evergreen trees, and deciduous and evergreen shrubs, a listing by standard names in effect on any date is on file with the Division and is available on request. 877 Wherever balled and burlapped material is mentioned in these Specifications, the Contractor may with the approval of the Engineer, substitute container stoc k for balled and burlapped stock of small trees and shrubs. The container grown plants shall conform to the AAN Standards. Plantable type pots can be used in lieu of burlapping balled plants; however, a firm ball must be placed in the pot, and the hole d ug with the same care and to the same size as for balled and burlapped plants. Plants with balls which have been manufactured on bare -root dug material or bare -root material that has only recently been potted will be rejected. These improperly potted plants will not be considered equal to balled and burlapped or container grown plants.
715.36 Asphaltum Base Paint for Tree Surgery :
Paint for tree wounds shall be antiseptic and w aterproof, black in color and with an asphaltic base. It shall contain no coal -tar creosote, oils, kerosene, turpentine or other material harmful to the living tissue of trees.
715.37 Miscellaneous Items for Landscape Plantings :
715.37.1 Tree Stakes: Stakes used for guying or supporting newly planted trees shall be
made from rough sawed oak, or other approved material, free from unsound or loose kno ts that impair its strength. The stakes shall be two (2) inch by two (2) inch square and of a length in proportion to the height of the tree. The following lengths for stakes shall be used as a guide: Approximate Tree Height (Feet) Stake Length (Feet) 3 to 6 5 6 to 9 6 9 to 14 7 Larger size trees shall be guyed or supported by stakes as shown on the Plans.
715.37.2 Wire: The wire used for guying and staking plants shall be galvanized steel wire,
free from bends and kinks. Trees less than three ( 3) inches in diameter shall be guyed with No. 14 gage wire, and trees three ( 3) inches and larger shall be guyed with No. 12 g age wire.
715.37.3 Hose: The hose used for staking and guying plants shall be new 3/8 to 5/8 in ch
nominal I.D. rubber garden hose or equal. The walls of the hose shall be of sufficient thickness to prevent wire damage to the plans.
715.37.4 Twine: The material used for tying wrapped tree trunks shall be binder twine
not less than two -ply strength.
715.37.5 Tree Wrap: The material shall be four (4) inch wide waterproof sisal paper
manufactured especially for wrapping trunks of tress.
715.37.6 Anti -Desiccant: Anti-desiccant shall be an emulsion which provides a protective
film over plant surfaces, permeable enough to permit transpiration. It shall be delivered in the manufacturer's containers and shall be mixed according to the manufacturer's directions.