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4. The contractor shall prune off lower branches high enough for traffic clearance. <br /> 5. The contractor shall cut out dead, crossing, rubbing branches, and v-shaped crotches. <br /> 6. The contractor shall undercut branches over two (2) inches in diameter before final cut is <br /> made close to a scaffold (main) branch. Shredded, torn or ripped branches shall be re-cut <br /> cleanly. <br /> 7. An exposed wound, as where a branch was removed, shall remain exposed. The <br /> contractor shall not paint or apply any substance on wounds. <br /> 8. Trees close together shall be separated by the removal of intermingling branches. The <br /> exception is a large hedge or windbreak consisting of one (1) species. <br /> 9. All newly planted or young trees shall be double-staked by the Contractor and secured <br /> properly with CR-approved ties. <br /> a. The contractor shall use only City-approved staking materials. <br /> b. The contractor shall always remove nursery stakes on young trees and <br /> replace them with double staking when trunk strength allows. <br /> c. All stakes shall be set perpendicular to prevailing winds unless <br /> designated otherwise by the CR. <br /> d. Tree stakes shall be set a consistent distance (minimum six [6] inches) away <br /> from the trunk of the tree to reduce abrasion. <br /> e. The tops of tree stakes shall be removed approximately three (3) inches <br /> above the highest tie to reduce abrasion of the main or lateral branches of <br /> the tree. <br /> 10. A tree too heavy for support by stakes shall have equally-spaced guy wire ties to stakes <br /> and shall be inspected for possible removal. The wire shall be on a 45-degree angle with <br /> the tree trunk. <br /> a. Locations for the use of guy wires shall be determined by the CR. <br /> b. Ties shall always allow for tree movement between stakes and tree trunk. <br /> c. The contractor shall loosen or remove tree ties upon discovery that ties are too <br /> tight before ties girdle a branch or trunk. <br /> d. The contractor shall remove stakes or tensioned cables (guy wires) from a tree <br /> trunk that is immovable in wet soil. <br /> 11. Any tree stakes or ties that are broken, loose, or damaged shall be removed immediately. <br /> If the tree is less than one (1) year old or immature and requires continued support, new <br /> ties and stakes will be required. <br /> 12. Fertilizers, pre-approved by the CR, shall be applied to trees and shrubs that require <br /> supplemental feeding. Annual spring feeding shall be done in accordance with the rate <br /> indicated by the manufacturer. Fertilization may require deep root feeding or foliar <br /> micronutrient applications. <br /> 13. All trees located in Casual, Sports/Priority Turf areas shall have 2" of STA approved Y-4" <br /> compost mulch installed around the tree ring continuously. <br /> 14. The Contractor shall have an ISA Certified Arborist On-call employee able to provide a risk <br /> assessment. The contractor will only charge, AEW, the arborist time to investigate and create <br /> a risk assessment. The arborist can be asked to meet with residents, the public, or elected <br /> officials to discuss tree conditions. <br /> RFP 23-151 Landscape Maintenance Services Page 48 of 135 <br />