<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">Jessika,<div class=""><br class=""></div><div class="">You may wish to consider root shearing as well, and staying beyond the tree's zone of rapid taper.</div><div class="">I find this approach to be helpful but not always imperative. Offline I can tell you the </div><div class="">tool we like to use for the umpteen roots we’ve sheared out of lawns from trees like cottonwood,</div><div class="">cherry, red maple and katsura in particular. As with any impact to trees, one must always consider</div><div class="">species, location, size, age, condition, health, disease (or lack of), etc. Trees and Development (1998), </div><div class="">which is presently being updated and reprinted, is an excellent guide for root alterations that you may be doing </div><div class="">to a tree including drainage, backfill, root cutting, grade changes, etc. Hope that helps. </div><div class=""><br class=""></div><div class=""><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">Best,</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; min-height: 21px;" class=""><span style="font-kerning: none" class=""></span><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">John Martyn, Consulting Arborist</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">JPM Tree Service</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">Since 1996</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">Abbotsford, BC</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal;" class=""><span style="font-kerning: none" class="">604.789.4045</span></div><div style="margin: 0px; font-stretch: normal; line-height: normal; color: rgb(9, 79, 209);" class=""><span style="text-decoration: underline ; font-kerning: none" class=""><a href="http://www.jpmtree.com" class="">www.jpmtree.com</a></span></div></div><div style="margin: 0px; font-stretch: normal; line-height: normal; color: rgb(9, 79, 209);" class=""><br class=""></div><div style="margin: 0px; font-stretch: normal; line-height: normal; color: rgb(9, 79, 209);" class=""><br class=""></div></body></html>