• <br /> 4. Mllching. During the establishment period a minimum 3 ft. x 3 ft. planting area <br /> around each tree shall be maintained with a layer of bark mulch 2-4 inches in depth. The mulch <br /> shall be kept at least 2 inches away from the trunk of the tree, and the mulched planting area <br /> around the tree shall be kept• free of weeds. <br /> 5.ing. <br /> 5.1 Dead, broken or split branches shall be pruned at the time of planting. . <br /> 5.2 Trees shall be pruned to remove branches that are .crossing, damaged, <br /> diseased, broken, or have included bark. <br /> 5.3 Trees shall not be topped or reduced in height without prior approval of the <br /> Urban Forester. • <br /> 5.4 Trees shall be pruned so at least two thirds of the tree's height is canopy <br /> with one third of the height being the tr <br /> :• : • ` w `Phe lower iimbs shall be`pruned*off or: tipPed`ba '`tot�meet oomplf w <br /> e <br /> the requirements: for clearance over sidewalks and streets contained in the Eugene 'Code, <br /> 1971. <br /> 5.6 Initial: struc Pruning. shall-be performed at-the end of the three year <br /> -establishment period,t A strong scaffold•branch structure shall be developed by pruning <br /> ' to select the primary scaffold branches. <br /> 5.7 Pruning shall be performed according to the approved Urban Forestry <br /> pruning standards and specifications. <br /> 6. Tree Replacement. Any tree that falls under one or more of the following <br /> • conditions shall be replaced by the developer during the next approved planting season after <br /> receipt of the notice of the need to replace the tree. <br /> 6.1 1. This shall include any tree that has no live growth originating <br /> in the scaffolding branches. <br /> 6.2 Stressed tree. This shall include any tree that has lost a minimum of 50% <br /> of its total foliage or, has a reduction of 50% of normal leaf size for that species. <br /> '6.3 Non - approved tree. This shall include any variety of tree that is not listed <br /> on the Approved Street Tree Species List, or that has not been approved by the Urban <br /> Forester. <br /> Administrative Order - 17 <br />