September 26-28 33rd Annual Texas Tree Conference, Academy, Awards, Tree School & Trade Show. Waco Convention Center, Waco, Texas. To learn more, visit www.isatexas.com.

27-29 L1 Tree Climbing Methods, Work Positioning & Best Practice. Longmont, Colo. For details, visit www.arbormaster.com.

30-October 2 MAC-ISA Annual Meeting. Cumberland, Md. For more information, visit www.mac-isa.org.

30-October 3 Environmental Concerns in Rights-of-Way Management: 10th International Symposium. Point Hilton Tapatio Cliffs, Phoenix, Ariz. For details, visit www.regonline.com/Rights-of-WaySymposium10.

October 1-2 L1 Arborist Rigging Applications. Longmont, Colo. To learn more, visit www.arbormaster.com.

3-4 Tree Risk Assessment Course & Exam: Become a Certified Tree Risk Assessor. Morris Arboretum, Philadelphia, Pa. For details, email jlm@upenn.edu or visit http://online.morrisarboretum.org/classes.

5 Minnesota Society of Arboriculture Annual Conference. Minnesota Landscape Arboretum, Chaska, Minn. To learn more, call 507-328-2515 or email mailboxmsa@gmail.com.

5 New Perspectives in Tree Care. Chico, Calif. For more information, visit www.wcisa.net.

5 The Life of Soil. Morris Arboretum, Philadelphia, Pa. For details, email jlm@upenn.edu or visit http://online.morrisarboretum.org/classes.

9 Tap Root Speaker Series. Schlafly Bottleworks, St. Louis, Mo. To learn more, call 636-970-3000 or email bgrossman@sccmo.org.

12 Crane Use & Safety During Tree Removal. Baton Rouge, La. For more information, visit www.isasouthern.org.

12 Identification & Diagnosis of Plant Disorders. Morris Arboretum, Philadelphia, Pa. To learn more, email jlm@upenn.edu or visit http://online.morrisarboretum.org/classes.

15-16 L1 Precision Tree Felling, Chain Saw Safety & Handling. Taylor, Mich.; Attleboro, Mass. For details, visit www.arbormaster.com.

16 Pruning Deciduous Trees. Morris Arboretum, Philadelphia, Pa. For more information, email jlm@upenn.edu or visit http://online.morrisarboretum.org/classes.

16-17 Illinois Arborist Association Annual Conference & Trade Show. Holiday Inn Select, Tinley Park, Ill. To learn more, visit www.illinoisarborist.org.

16-17 Safety Training for Arborists: Chain Saw Safety, Electrical Hazard Awareness & Aerial Rescue. Morris Arboretum, Philadelphia, Pa. For details, email jlm@upenn.edu or visit http://online.morrisarboretum.org/classes.

17-19 L1 Tree Climbing Methods, Work Positioning & Best Practice. Taylor, Mich.; Attleboro, Mass. For more information, visit www.arbormaster.com.

18-19 Desert Green XVI: Working Together for a Greener Future. Las Vegas, Nev. For details, visit www.desert-green.org.

22-23 L1 Arborist Rigging Applications. Taylor, Mich. For more information, visit www.arbormaster.com.

26 Electrical Hazard Awareness & Minimum Approach Distances. Pollock, La. To learn more, call 225-578-7219 or visit www.isasouthern.org.

26-27 New Jersey Shade Tree Federation 87th Annual Meeting. Crowne Plaza, Cherry Hill, N.J. For more information, call 732-246-3210, email njshadetreefederation@att.net or visit www.njstf.org.

29-30 L2 Tree Climbing Methods & Best Practice. Haddam, Conn. For details, visit www.arbormaster.com.

30 2012 Wisconsin Arborist Association Fall Seminar. West Bend Mutual, West Bend, Wis. For more information, visit www.waa-isa.org.

31-November 2 Introductory Tree Climbing. Morris Arboretum, Philadelphia, Pa. For details, email jlm@upenn.edu or visit http://online.morrisarboretum.org/classes.

31-November 2 L2 Arborist Rigging Applications. Haddam, Conn. To learn more, visit www.arbormaster.com.

31-November 2 ISA Leadership Workshop. Hilton Garden Inn, Champaign, Ill. For more information, call 217-355-9411 or email jmoorman@isa-arbor.com.

31-December 12 UMass Extension 2012 Green School. Holiday Inn, Marlborough, Mass. For details, visit www.umassgreeninfo.org.

November

1 Pest Update. Milpitas, Calif. For more information, visit www.wcisa.net.

7-9 Advancing Your Climbing Skills: Pruning, Rigging & Removal with a Crane. Morris Arboretum, Philadelphia, Pa. To learn more, email jlm@upenn.edu or visit http://online.morrisarboretum.org/classes.

8 Georgia Exotic Pest Plant Council Annual Meeting & Conference. Stuckey Conference Center, Griffin, Ga. For details, visit www.gaeppc.org.

8-10 2012 TCI EXPO Conference & Trade Show. Baltimore, Md. For more information, visit www.tcia.org.

9 Electrical Hazard Awareness & Minimum Approach Distances. New Orleans, La. For details, call 225-578-7219 or visit www.isasouthern.org.

10 Maryland Arborist Association Volunteer Arborist Day. World War I Memorial, Druid Hill Park, Baltimore, Md. For more information, call 410-321-8082 or email mdarboristassoc@aol.com.

11-13 NEC-ISA Annual Conference. Newport, R.I. To learn more, visit www.newenglandisa.org.

12-13 Tree Risk Assessment Course & Exam. Redmond Inn, Redmond, Wash. For more information, visit www.pnwisa.org.

12-13 L1 Precision Tree Felling, Chain Saw Safety & Handling. Reston, Va. For details, visit www.arbormaster.com.

14-16 2012 Partners in Community Forestry Conference. Sacramento, Calif. To learn more, visit www.arborday.org.

14-16 L1 Tree Climbing Methods, Work Positioning & Best Practice. Reston, Va. For more information, visit www.arbormaster.com.

27-28 L1 Precision Tree Felling, Chain Saw Safety & Handling. Irving, Texas. To learn more, visit www.arbormaster.com.

28-December 1 ASCA Annual Conference. Rancho Bernardo Inn, San Diego, Calif. For details, visit www.asca-consultants.org.

29-December 1 L1 Tree Climbing Methods, Work Positioning & Best Practice. Irving, Texas. For more information, visit www.arbormaster.com.