ITB 17-05-01 Landscape Maintenance Services

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City of Sunny Isles Beach | Invitation to Bid No. 17‐05‐01 50 Dogfennel; Goosegrass; Johnsongrass; Maiden Cane; Ragweed; Rhodegrass; Sandspur; Spanish Needle; Torpedo Grass; Tropical Soda Apple; Vaseygrass; White Clover; Dollarweed; Florida Pusley, Large Pusley. 3.10 TREE & PALM MAINTENANCE All pruning shall be in accordance with the American National Standards Institute ANSI A-300 standards and practices. Tree maintenance must be under the direct supervision of an ISA certified arborist. A tree maintenance schedule developed by an ISA certified arborist shall be provided to the City in writing within (14) days after award of contract as part of the Maintenance and Service Plan. An ISA certified arborist shall be available for tree health inspections and tree maintenance recommendations when requested by the City. All work shall be performed by workers trained in accordance with ANSI Z133.1 safety regulations as required by OSHA. Maintain integrity of original design when trimming. Cuts shall be made with sharp and proper tools. On trees or palms known to be diseased, disinfect tools after each cut and between trees. Prune only at the time of season proper for the variety. Pruning of trees and palms shall only take place after notifying the City. All tree, palm and shrub pruning is included in this Contract. The Contractor shall maintain integrity of original design when trimming and shall not box plants whose habits of growth do not lend themselves to this type of trimming. The Contractor shall not use a machete for trimming and no plant material shall be trimmed using weed eaters. The contractor shall haul away all trimming debris from site, and properly dispose of at Contractor’s expense. 3.10.1 TREES Prune, thin, and trim all trees once per year, or as needed, to keep the trees healthy, to maintain the natural character of the variety, to control shape and to prevent crowding. Pruning shall consist of the removal of dead, broken, fungus infected, superfluous and intertwining branches, vines, and the removal of dead or decaying stumps and other undesirable growth. Selectively prune all mature trees over 20’ height and adjacent to walks and vehicular areas to a minimum of 12’ of clear trunk, and maintain minimum of 8’ clear trunk for all other trees in accordance with Tree Care Industry Association and Miami- Dade County standards and practices. Remove sprouts or stems to maintain single trunk on single-trunk trees. Contractor must be responsible for the removal of water- sprouts/suckers growing from trees in areas where landscape maintenance is being conducted, up to the height of 8 feet. No pruning will be done immediately following growth flushes, branches will be pruned just outside the branch collar, and pruning paint will not be applied. Sucker growth will be removed by hand from the base of trees and no herbicide will be used for this purpose. Prune only at time of season for the variety. Shape the top of small trees as needed. Tree pruning will also be required from time to time due to damage from storms, frost or when blocking sight distances, following the ANSI A-300 and ANSI Z-133 standards and Miami-Dade County Tree Ordinance, etc.