Wachtel Tree Science
P.O. Box 716
Merton, WI 53056-0716
Fax: (262)538-1412
Phone: (262) 538-1900
E-mail:
Williams Bay / Lake Geneva:
(262)245-0556
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Our Experienced Staff
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Dave Scharfenberger
President
Board Certified Master Arborist
Certification # WI-0131B President & ISA Board Certified Master Arborist, Dave Scharfenberger is a graduate of the University of Wisconsin - Stevens Point with a BS in Urban Forestry and has over 34 years of experience in the science of tree care. Dave is on the Board of Directors and V.P. on the Executive Committee of the International Society of Arboriculture. Dave is also a Wisconsin Arborist Association Honorary Life Member and is an active member of the Tree Care Industry Association and the Wisconsin Landscape Contractors Association. He is a past president of the Wisconsin Arborist Association and is a recipient of their Distinguished Service Award. Dave has also received the Wisconsin Urban Forestry Council's Distinguished Service Award. Dave is on the Wisconsin Department of Natural Resources Emerald Ash Borer Management Panel.
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Jeff Wilson
Vice President
Certified Arborist
Certification # IL-0099AVice President & ISA Certified Arborist, Jeff Wilson is a graduate of Northland College with a BS in Biology and has over 33 years of experience in the science of tree care. Jeff is active in the International Society of Arboriculture, Wisconsin Arborist Association, Tree Care Industry Association and Wisconsin Landscape Contractors
Association. Jeff has been an advisor to the Forestry programs and UW Stevens Point and Mid-State Technical College since 2001. |
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Paul Markworth
CFO & Consulting Arborist
Board Certified Master Arborist
Certification # WI-0153BISA Board Certified Master Arborist, Paul Markworth has a BS degree in Forest Management from Purdue University and has over 40 years of experience working with trees and their problems. He is a past president of the Wisconsin Arborist Association and has received both their Distinguished Service and Honorary Life Member Awards. |
Tony Arnoldi
Chief Diagnostician
Board Certified Master Arborist
Certification # WI-0102BChief Diagnostician & ISA Board Certified Master Arborist, Tony Arnoldi has over 32 years of field experience in the diagnosis, treatment and maintenance of trees and shrubs. Tony received his BS degree in Forest Science from the University of Wisconsin. He is also a licensed and certified pesticide applicator. Tony is a member of the International Society of Arboriculture, the Tree Care Industry Association and the Wisconsin Arborist Association where he served on the Board of Directors for several years. Tony's projects have won two Excellence in Arboriculture Grand Awards. |
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Jeff Hagfors
Diagnostician
Certified Arborist
Certification # WI-0181A Diagnostician & ISA Certified Arborist, Jeff Hagfors has been caring for trees for over 25 years. Jeff graduated from the University of Wisconsin - Stevens Point with a BS degree in Forestry. He is a member of the International Society of Arboriculture, the Tree Care Industry Association and the Wisconsin Arborist Association. One of Jeff's projects won the 2002 Excellence in Arboriculture Grand Award.
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John Gall
Municipal Specialist
Certified Arborist
Certification # WI-0249AM Special Projects Coordinator & ISA Certified Arborist / Municipal Specialist, John Gall is a graduate of Purdue University with a BS in Forest Management and was the first master's candidate to receive a MS degree in Urban Forestry from Purdue. He has 37 years of experience working with the management of trees, including 20 years heading municipal forestry programs. John is a past president of the Wisconsin Arborist Association and has received both their Distinguished Service and Honorary Life Member Awards. He is currently serving as a member of the Wisconsin Urban Foresty Council.
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Jean Ferdinandsen
Diagnositcian
Certified Arborist
Certification # WI-0149ADiagnostician & ISA Certified Arborist, Jean Ferdinandsen graduated from the University of Wisconsin with BS and MS degrees in Horticulture. She is also a licensed and certified pesticide applicator. Jean is a member and past president of the Wisconsin Arborist Association, and has received their Distinguished Service Award. A Life-Member of the International Society of Arboriculture, Jean has over 32 years of experience in the care of trees and shrubs and diagnosing their problems. |
Bill Reichenbach
Diagnositcian
Certified Arborist
Certification # WI-0188ABill has been working with and caring for trees for 28 years. He graduated from the University of Wisconsin - Madison with a BS degree in Horticulture. He has served on the board of directors of the Wisconsin Arborists Association in the early 1990's. Bill has appeared on PBS's 'The Victory Garden' and 'The Wisconsin Gardener' over the years. In 2005 Bill received an International Society of Arboriculture Gold Leaf Award and a Wisconsin Urban Forestry Council Award working with the City of Waukesha in preserving the Dunbar oak. |
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Ron Gumz
Diagnositcian
Certified Arborist
Certification # MN-0324AA diagnostician and International Society of Arboriculture certified arborist; Ron has been caring for trees for over 10 years. Ron graduated from the University of Wisconsin - Stevens Point with a bachelor's degree in Urban Forestry. He is a member of the International Society of Arboriculture and Wisconsin Arborist Association. Ron is also a licensed and certified pesticide applicator. |
Office StaffBrandy Holz - Executive Administrative Manager
Diana Barber - Administrative Assistant
Mary Schmitt - Administrative |
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The Wachtel Team
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| Name |
Years Experience |
Degree |
Certified Arborist |
Title |
| Anthony Arnoldi |
29 |
B.S. |
# WI-0102B |
Master Diagnostician |
| Dan Barwinski |
2 |
B.S. |
# WI-0716A |
Arborist |
| Diana Barber |
2 |
B.S. |
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Administrative Assistant |
| Janet Doss |
19 |
B.S. & Assoc. |
# WI-0179A |
Supervisor Plant Health Care Dept. |
| Jean Ferdinandsen |
32 |
B.S. & Masters |
# WI-0149A |
Diagnostician |
| Peter Gailans |
1 |
B.S. |
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Arborist |
| John Gall |
37 |
B.S. & Masters |
# WI-0249AM |
Special Projects Coordinator |
| Andy Garens |
1 |
B.S. |
# WI-0771A |
Arborist |
| Keith Glaznap |
8 |
B.S. |
# WI-0678A |
Asst. PHC Supervisor |
| Adrain Gontea |
1 |
Assoc. |
# WI-0793A |
Arborist |
| Ron Gumz |
10 |
B.S. |
# MN-0324A |
Diagnostician |
| Jeff Hagfors |
25 |
B.S. |
# WI-0181A |
Diagnostician |
| Brandy Holtz |
17 |
B.S. & Assoc. |
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Executive Administrative Manager |
| Brent Kahn |
22 |
Assoc. |
# WI-0302A |
Supervisor Tree & Landscape Dept. |
| Matt Kennedy |
2 |
B.S. |
# WI-0773A |
Arborist |
| Mike Klein |
17 |
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# WI-0306A |
PHC Technician / Foreman |
| Gary Kohler |
14 |
Assoc. |
# WI-0329A |
Foreman |
| Nick Kowalski |
3 |
B.S. |
# WI-0714A |
Arborist |
| Paul Markworth |
40 |
B.S. |
# WI-0153B |
Consulting Arborist |
| Bill Reichenbach |
28 |
B.S. |
# WI-0188A |
Diagnostician |
| Ben Reince |
6 |
B.S. |
# WI-0610A |
Foreman, Safety Coordinator |
| Dave Scharfenberger |
34 |
B.S. |
# WI-0131B |
President |
| Mary Schmitt |
46 |
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Administration |
| Darin Schmuki |
4 |
B.S. |
# WI-0682A |
Arborist |
| Jeff Schulz |
21 |
B.S. |
# WI-0288A |
PHC Technician |
| Chad Shipley |
3 |
B.S. |
# WI-0715A |
Arborist |
| Gary Stanwood |
30 |
B.S. & Masters |
# WI-0572A |
PHC Specialist |
| Jeff Wilson |
34 |
B.S. |
# IL-0099A |
Vice-President |
© Wachtel Tree Science & Service Inc.
All Rights Reserved.
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