FloridaFlorida Arborist A Publication of the Florida Chapter ISA Volume 11, Number 4, Winter, 2008 www.floridaisa.org Winter 2008 Silva Cell Case Study In This Issue: LAKELAND, FL. Silva Cell Case Study 1 Wal-Mart Super Center During the week of September 23rd, 2008, the first Silva Cell installation in the state In the News 2 of Florida occurred at a Wal-Mart parking lot on South Florida Avenue in Lakeland. Just a few months earlier many of the trees, largely dying or stressed, had flanked Featured Chapter Member 4 the store’s main entrance. The decline of these trees – suffering from little avail- Membership Report 5 able uncompacted or open soil – is typical of many urban sites. When Chris Hice, a Registered Landscape Architect and ISA-Certified Arborist out of Sarasota with Restoring Trees 6 the Urban Resource Group, a division of Kimley-Horn & Associates, Inc., walked post-Hurricane the site he envisioned large, flourishing trees to provide canopy coverage for the ISA Headquarter News 14 redesign of the Lakeland Wal-Mart park- ing lot. He knew that the only way to ANSI Z133.1 15 grow trees that big was to provide them with access to sufficient high-quality soil. OSHA 15 Palm Lethal Yellowing 16 Hice was dealing with two major issues during the design of the proposed site im- Florida Chapter Board 18 provements: to provide at least 50% can- Updates opy coverage over the parking area and to maintain an adequate number of parking New FL Chapter Members 20 spaces. Originally, trees were installed in 4’ x 4’ diamond shaped parking is- 2009 Certification Exam 21 Schedule lands with little additional soil added to promote healthy growth or lon- 2009 Board of Directors 21 gevity. Hice knew that the only way Schedule to grow trees that big was to provide them with access to sufficient high- Miami-Dade Urban 22 Canopy quality soil. Hice recommended the Silva Cell Integrated Tree and Stormwa- English/Spanish ter System as a part of the Tree Protection and Landscape Plan for the site. Tree Fund 24 Wal-Mart intended to upgrade their existing Lakeland store into a super center, so creating a plan for healthy site trees was imperative, and a great addition to their Arborist Certification 27 Committee Report existing green development strategy. In addition to helping cool and clean the air, the trees and their soil volumes would help manage stormwater on-site and reduce Education Schedule 27 run-off consistent with LID practices. The City of Lakeland has similar sustain- ability goals and LID initiatives. Hice recalled an ISA presentation “Planting the Silva Cell continued on page 3 Florida Arborist Winter 2008 In the News Scientists use DNA to locate invasive Horticulturist, researcher pines Marc Cathey dies Invasive Australian pines are crowding out native Florida H. Marc Cathey, retired director plants, but it’s tough to tell the difference between the look- of the U.S. Nat’l. Arboretum and alike Casuarina species and subspecies. USDA ARS botanist .president emeritus of the American John Gaskin is comparing DNA samples from Casuarina Hort. Society, died on Oct. 8. He was trees growing in Australia, where their identification is cer- 79. Cathey, who received his Ph. D. tain, to the Casuarina trees running amok in south Florida. from Cornell Univ., was instrumental Once the identifications are completed, ARS can release in- in creating the USDA Hardiness Zone sects from Australia that will devour the invasive varieties. Map and the AHS Plant Heat-Zone The study is the first to use DNA to definitively identify Ca- Map. Cathey received numerous suarina trees in Florida. Gaskin expects to have final results awards and honors including the 1981 this year. AHS Liberty Hyde Bailey Award and 1977 SAF Floriculture In the News continued on page 12 Hall of Fame Award. NMPRO Cities need better street Florida Chapter ISA tree management 2008 Board of Directors A paper written by an Ind. Univ. professor Executive Committee Directors Bill Slaymaker, Utility Arborist and doctoral student argues that street Mary Edwards, President (‘08) Don Winsett, Commercial Representative (’08-‘10) ValleyCrest Tree Care Services Arborist Representative (‘06-08) Florida Power & Light trees should be considered a “common- 4777 Old Wintergarden Rd Stiles Landscape Co. 7200 NW 4th Street Orlando FL 32811 300 SE 2nd Street, Suite 620 Plantation, FL 33317 pool resource,” Science Daily reported. Phone (407) 293-0146 Ft. Lauderdale, FL 33301 Phone: 954-321-2125 Fax (407) 291-4966 Phone 954-627-9100 Fax: 954-321-2161 The duo hopes their investigation will Cell (321) 303-4714 [email protected] [email protected] [email protected] Ron Litts, Consulting Janet Maland, FUFC Representative (’06-‘08) Mike Robinson, President Elect (‘08) Arborist Representative. (’07-‘09) Janet Maland JEA Outside Interests, Inc. 505 Jennifer Lane 2325 Emerson Street 7012 Oelsner St. Windermere, FL 34786 Jacksonville, FL 32207 New Port Richey, FL 34652 Phone: (407) 876-5022 Phone (904) 665-6134 Phone: 727-207-1002 Fax: (407) 876-4393 Fax (904) 665-4097 [email protected] Email: [email protected] [email protected] Bruce Hammersmith, Grower Mike Marshall, Intl’ Representative (‘06-‘08) David Reilly, Vice President (’08) Representative (’06-’08) Marshall Tree Farm City of Tampa - Parks Skinner Nurseries 17350 SE 65th Street 1420 North Tampa Street 13000 SR 11 Morriston, FL 32668 Tampa, FL 33602 Bunnell, FL 32110 Phone: 352-528-3880 Phone (813) 931-2648 Phone: (386) 586-6531 Fax: 352-528-3778 Fax (813) 931-2645 Fax: (386) 437-1509 [email protected] lead to better management of an under- [email protected] bhammersmith@skinnernurseries .com Kris Stultz, At Large (’08) appreciated community asset. “We hope it Rick Joyce, Past President (‘08) Stiles Landscape Kitson Babcock, LLC Ed Gilman, Educator 5113 NW 65th Ave. will impact how cities look at their trees,” 17837 Murdock Circle Representative (’07-‘09) Lauderhill, FL 33319 Port Charlotte, FL 33948 University of Florida Phone: 954-309-6371 said Burney Fischer, clinical professor in Phone (941) 235-6900 x6911 Dept. of Environmental Horticulture [email protected] [email protected] 2543 Fifield Hall the School of Public and Envl. Affairs Gainesville, FL 32611-0670 Eric Hoyer, At Large (’08) Tammy Kovar, Treasurer (’08-‘10) Phone (352) 392-1831 ex. 373 Natural Resource Planning Service Biological Tree Services Fax (352) 392-3870 ex. 1413 2204 Velvet Way at IU Bloomington. The authors claim 7345 International Place, Suite 102 [email protected] Lakeland, FL 33811 Sarasota, FL 34240-8468 Phone: 863-6889994 street trees fit the definition of common- Phone: 941-706-1414 Lee Mackin, Municipal Arborist [email protected] Fax: 941-706-1415 Representative (’08-‘10) pool resource because they benefit many City of Winter Park [email protected] Joanne Lavner, At Large (’08) Forestry Division Orange County Government 1409 Howell Branch Road people but their use is difficult to control. Kim Paulson, Secretary (’07-’08) PO Box 2687, Orlando FL 32802 Building 1 The Tree Lady Company Phone: 407-836-2903 Winter Park, FL 32789 Street trees are subject to a patchwork of 1526 S. Lake Mirror Dr. [email protected] Winter Haven, FL 33881 Phone: 407-599-3325 management schemes, developed under Phone: 863-293-5867 Fax: 407-599-3454 Administration [email protected] [email protected] various state and local laws. As a result, • Norm Easey, Executive Director • Jan Easey, Admin. Assist. many communities don’t really know • Patty Morrison, TF Coordinator which trees are street trees. There’s also Florida Arborist newsletter is published quarterly by the Florida Chapter of The International Society of Arboriculture, Inc., 7853 South Lee- wynn Court, Sarasota, FL 34240, and is intended as an educational benefit to our members. Information may be reprinted if credit is given confusion about who’s responsible for to the author(s) and this newsletter. Please submit all requests and articles to: Norm Easey, 7853 South Leewynn Court, Sarasota, FL 34240, Fax (941)342-0463 Email: [email protected]. Articles submitted will not be returned and are preferred in electronic format via disk or them and what rules and regulations e-mail. All pictures, articles, advertisements and other data are in no way to be construed as an endorsement of the author, products, services, or techniques. Likewise, the statements and opinions expressed herein are those of the individual authors and do not represent the view of apply to their care. the FL-ISA, its executive director, board of directors, its chairman, this newsletter or its editor. 2 Florida Arborist Winter 2008 Silva Cell from page 1 the assessed the Wal-Mart site plans and assisted in the Urban Forest” that he had attended in the fall of 2006. preparation of specifications tailored to the project. Ul- It was there that he met James Urban, FASLA, a guest timately, Deep Root recommended 50 stacks of Silva speaker and an internationally renowned Landscape Cells two frames high (two frames and one deck) per Architect, and Al Key, a representative from Deep live oak in the parking lot. With each stack providing Root Partners, the manufacturer of the Silva Cell. 20 cubic feet of soil, the system met Hice’s soil goal. Finally, after Wal-Mart finished the permit- Hice decided to contact ting and bid process, Cleveland Construc- Urban to ask him to assess tion was named the general contractor. how the parking lot could They subsequently appointed Mid State Landscaping to be made more hospitable to implement Hice’s tree preservation and renewal plan. large tree growth. Hice and The Silva Cell installation went smoothly. Al Key Urban agreed that the dead and Hice were there to observe the process.