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All trees requiring staking shall be securely staked at all times with stakes and rubber cinch ties approved by the Director. Rubber hoses and wire are not permitted ties. All stakes shall be set perpendicular to prevailing winds unless designated otherwise by the Director. Tree stakes shall also be set a consistent distance away from the trunk of the tree (minimum six (6) inches) to reduce abrasion and cell elongation. The tops of all tree stakes shall be removed approximately three (3) inches above the highest tie to reduce abrasion of main or lateral branches of the tree. c) Mulching of Bare Areas In designated tree ring areas where bare soil is visible the Contractor shall apply Aguinaga Black Forest Floor Mulch or approved equal size 0" to 1 1/2", 1/2" thick minimum every other month starting in January during the third week as necessary to maintain uniform and complete coverage. Mulch is to be maintained within its boundaries. d) Fertilization (1) Cycad and Palms shall be fertilized two (2) times per year in March and September with Nutricote 13-5-11 total 3 -stage controlled release palm fertilizer at the manufacturer's recommended rate. e) Hazardous Tree Reporting In the event the Contractor detects any tree displaying roots heaving or girdling (either by roots or a foreign material), leaning, broken or hanging limbs, or if Contractor determines that potential safety hazard may exist Contractor shall notify the Director by phone within twenty-four (24) hours. f) Loss of Trees The Contractor shall be responsible for the complete removal and replacement of any and all trees lost due to the Contractor's failure to perform under this agreement. Failure to perform includes but is not limited to, girdling trees with string trimmers or tree ties, improper planting of new trees, improper pruning/trimming techniques which disfigure or destroy the trees natural integrity and shape, or failure to detect and prevent treatable diseases and insect infestations. All trees that exhibit the signs of disease or any other signs of distress shall be inspected by a Certified Arborist approved by the Director. Should the Certified Arborist determine that the tree had a terminal disease that the Contractor could not have treated or prevented, the Contractor shall not be responsible to replace the tree. However, should the Certified Arborist determine that the tree's 15