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3. While making an approach to the palm crown for pruning, the Contractor shall <br />Inspect the trunk of the palm tree for signs of decay, insect frass, bees, rodents, <br />bird nesting or any other condition suggestive of a structural abnormality. Upon <br />finding any condition suggestive of a structural abnormality of the palm stem, the <br />Contractor shall report to the City Arborist immediately, <br />4. Care shall be taken in the handling of fruit and flowers as they are likely to <br />release clear liquids that react with and can cause staining to hardscape <br />elements. The Contractor shall be responsible for removing palm fruit related <br />stains from private property hardscape elements. <br />(2) The specifications for the pruning of Canary Island Date Palm trees are as follows: <br />Maintenance of the ornamental ball located at the base of the palm canopy, <br />directly below the live fronds, shall be as described by species as follows: <br />2, Canary Island Date Palm (Phoenix canariensis): dead petiole bases shall be <br />formed into an ornamental ball which begins directly below the lowest green <br />fronds and acts to provide a base of support to the palm crown. This ornamental <br />ball shall be uniform and smooth in appearance and shall extend no less than four <br />(4) and no more than eight (8) feet below the lowest live frond in the crown. <br />Ornamental balls with flattened or `stop sign' sides will not be accepted. The <br />upper portion of theornamental ball shall not tanar In rPcuifinn in P°ni n�nn n" <br />appearance as this treatment defeats the support capacity of the ball. The distal <br />portion of the ball shall begin at a point flush with the periphery of the palm trunk <br />and make a gradual taper upwards until it reaches the periphery of the shaped <br />ornamental ball. The Contractor may use a clean chainsaw in forming and/or <br />shaping the ornamental ball of a Canary Island Date Palm. The use of a <br />sharpened shovels in shaping and maintaining ornamental balls often results in <br />ornamental balls which have flat, untapered bottoms that are likely to relax and <br />collapse into pedestrian and vehicular traffic zones with grave consequences. <br />3. Live, healthy fronds, initiating at an angle of 90 degrees or greater from the <br />horizontal plane, shall not be removed. Fronds removed should be out close to the <br />petiole base, taking into consideration the role of petiole bases In the formation <br />and maintenance of the ornamental ball at the base of the canopy, as applicable <br />by species. <br />4. Fronds shall be trimmed using a handsaw, pole saw, or chainsaw that has been <br />sterilized for no less than five (5) minutes by having the entirety of its cutting blade <br />submersed in a twenty-five (25) percent chlorine bleach solution or one hundred <br />(100) percent Lysol, before and after the tool is used to cut the fronds of any other <br />palm tree. <br />5. Using properly sterilized equipment as described herein, any fruit or flower <br />structures in the crown of the palm shall be removed concurrently with frond <br />pruning. <br />6. The Contractor shall use care not to cut into live trunk tissue while maintaining the <br />ornamental ball, The Contractor shall remove any foreign plant material that has <br />sprouted in an ornamental ball. The Contractor shall verify that the ornamental ball <br />meets the standard described herein each time a Canary Island Date Palm is <br />pruned. <br />(3) The specifications for the pruning of Date Palm trees are as follows: <br />