Regional Technical Managers

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Marianne Waindle - Technical Products Manager

After joining Arborjet in 2014, Marianne has used her 35-plus years in the green industry to bring her many talents to the team. As Technical Product Manager, Marianne provides technical support to the Sales and Research & Development teams. She has a hand in new product development decisions, and assists Marketing with creating regional sales documents.

Marianne always possessed a love for the outdoors since a very young age, spending her time horseback riding on an urban farm, intrigued with growing fruits, nuts, veggies, and beautiful ornamentals. She later earned her Bachelor of Science and Arts degree in Ornamental Horticulture/Plant Pathology, followed by her Master of Plant Protection and Pest Management (IPM in Plant Pathology/Entomology/Agronomy). She later joined the Davey Tree Expert Company, where she became an ISA Certified Arborist and began a lifelong career in tree health. Marianne also holds certification as a California Pest Control Advisor and licensed Pesticide Applicator. In her spare time, Marianne enjoys old house maintenance, gardening, horseback riding, and cooking with friends.

Joe Aiken - Great Lakes & Canada Regional Technical Manager

Joe’s 30-plus years in the tree care industry have provided a diverse and valuable experience which has permitted him to guide others in plant health care decisions. He has worked in all phases of tree care, and as a licensed applicator and an ISA certified arborist, he developed a strong interest in Plant Health Care and gained the experience and desire to continue his education.

Joe routinely conducts product seminars and presentations on various treatment methods which are attended by arborists, city foresters, plant health care technicians, master gardeners, university extension agents, grounds departments, and research personnel. He also supports Arborjet’s research department and co-operating universities, assisting with tree injections on research sites, and other aspects of research required to aide in development of equipment and formulations needed to control today’s invasive pests.

Joe is a proud founding member of the Arboriculture Society of Michigan Foundation and Curator of the Arboriculture Historical Society. In 2001 Joe joined the team at Arborjet, where he shares his strong belief in tree preservation with clients, and educates others on the benefit of more environmentally friendly solutions for our urban forest problems.

Trent Dicks - Mid-Atlantic Regional Technical Manager

Trent has over 20 years of experience in Landscape and Nursery sales and operations. He holds a Bachelor of Science Degree in Agri-Business Horticulture from Illinois State University and an Associate’s Degree in Applied Science and Horticulture. Trent is a graduate of Dale Carnegie training.

For 14 years, he lived in the Midwest, managed a garden center, and ran small Nursery and Landscape company. Trent was the Landscape Designer and Operation Manager at Moon Landscaping for 6 years, where he managed large estates & plant health care. When Trent finds himself with free time he enjoys hunting, fishing, gardening and sports.

Dawn Fluharty - Northwest Regional Technical Manager

Dawn graduated from California Polytechnic State University SLO with a B.S. degree in Environmental Horticulture Sciences and a minor in Soil Science. She began her horticulture career in 1999 and has worked in sales as a key account manager for Wal-Mart and Lowes. She has also held outside sales positions supporting Home Depot, Orchard Supply and Ace Home Centers.

In 2011, Dawn joined the Arborjet team, focusing heavily on the Northern California market. She is a California certified Pest Control Advisor (PCA) and maintains her Qualified Applicator License (QAL). Dawn also holds memberships with associations such as WCISA, PNWISA, OAN, PAPA, and CAPCA. When she’s not working, Dawn enjoys spending time with her two young sons.

Emmett Muennink - Southwest Regional Technical Manager

Emmett holds a B.S. in Agronomy and a M.S. in Crop Science from Texas Tech University. After completing his master’s degree, he moved to the Dallas metroplex and began his career in Arboriculture. Starting out as a PHC technician for a Dallas area tree company, Emmett quickly climbed the ranks and managed the entire PHC division. He has performed nearly every job in the tree industry from diagnosis and PHC applications, to ground work, climbing, and stump grinding. Emmett’s formal education combined with his technical background provide him with an excellent understanding of plant and soil science, as well as practical knowledge of PHC and the tree industry. He enjoys staying on the cutting edge of PHC technologies and sharing his knowledge with other tree care professionals. On weekends and holidays you’ll find Emmett spending time with his family and friends, as well as hunting, fishing, BBQing, and rooting for his Red Raiders!

Jeff Palmer - Upper Midwest Regional Technical Manager

Jeff graduated from the University of Minnesota with a B.S. in Forestry. He began as a Horticulturist and Consultant and then managed a large plant health care (PHC) firm in the Twin Cities area.  Jeff went on to operate his own Commercial Landscape Maintenance business for more than 15 years.

Since joining Arborjet in 2009, Jeff has assisted hundreds of municipalities and plant health care companies with the implementation of their PHC programs and has a particular strength in management of Emerald Ash Borer.  Jeff continues to fine tune treatment protocols for managing tree issues like EAB, Bur Oak Blight, and Oak Wilt, among others. Jeff Palmer is a Certified Arborist and Municipal Specialist.

Jeff resides in the suburbs of the Twin Cities and in his free time you may find him fishing or hiking with his two sons. It is one of Jeff’s goals to visit the tallest natural point in each state and he is nearly half way there. Jeff also loves to cycle and has completed multiple Tour des Trees.

Dawn Sherman - Midwest Regional Technical Manager

Dawn is an Ohio Nursery Certified Technician, Master Status, combining her certifications in Garden Center, Grower & Landscape. She graduated from the University of Cincinnati with a B.A. in Psychology before seeing the “Green Light” and returning to school at Cincinnati State for her horticulture education. She has Associate Degrees in Landscape Horticulture Technology and Turfgrass Management Technology, as well as certifications in Landscape Design & Turfgrass Management. Dawn is also a licensed Commercial Pesticide Applicator for both turf and ornamentals. If you ask her, she would say she is a Lifelong Learner.

Dawn has 15 years of experience in the green industry, including operating her own business, selling outdoor power equipment and being a landscape designer. The common theme across those experiences is solving plant problems. Dawn most recently worked in sales for John Deere Landscapes where she made it her mission to learn everything she could about Arborjet and in the process, was afforded the opportunity to learn firsthand by joining the Arborjet team in 2014. Dawn became a Certified Arborist in 2015 and provides customer support and sales as the Midwest Regional Technical Manager.

A lot of Dawn’s free time is spent with plants – if not her own, then someone else’s. She has a love of outdoors and a sense of responsibility to sustain our planet. Outside of having a green thumb, Dawn considers herself a “foodie” and loves to try new foods wherever she travels and if there is a gourmet food truck, even better!

JB Toorish - Southeast Regional Technical Manager

JB started his career in the green industry in 1980 working for a landscaping company in the Cleveland, Ohio area. JB started as a lawn technician and eventually managed the lawn care and tree/ornamental care departments while developing Integrated Pest Management programs. In 1995, JB began working for the Davey Tree Expert Company as a sales and service technician. He graduated from The Davey Institute of Horticultural Sciences and The Davey Institute of Tree Sciences in 1997.

In July of 1997, JB started with LESCO/JDL as Manager of Technical Services. There, JB’s duties included daily agronomic and pest control support to internal and external customers. He held pesticide dealer/applicator licenses in over 30 states and routinely performed educational training presentations for CEU credits.

JB joined the Arborjet team in April of 2009. He is currently living in Orlando, Florida and providing sales and technical support for the southeast region of the United States.

JB has created and facilitated chemical applicator re-certification training presentations for many states throughout the US. JB has also written technical information for various industry text books, internal newsletters, websites and a monthly technical column for Lawn and Landscape Magazine.

Sye Vasquez - High Plains Regional Technical Manager

A welcomed addition to the Arborjet team in 2013, Sye brings a practical, hands-on approach to plant health care and integrated plant management. With over 15 years in the industry, he has become a valuable asset when it comes to providing information about maintaining the optimal health of trees.

Sye earned a degree in US History from Fort Lewis College in Durango, CO, but soon came to the realization that he could make a living climbing trees. He found reward in the aesthetic art of tree pruning, and prides himself on his ability. While pruning, Sye developed a strong concern and curiosity about the overall health of trees.

As an ISA Certified Arborist and Tree Worker, Sye is an important resource to landscape and tree care companies in his region. He takes pride in being involved in these communities, whether he is meeting with City Council, providing valuable information about the health of their trees, or providing field support by training customers and contractors on job sites. Sye holds a certification from the Colorado Department of Agriculture, and is a ready source of knowledge at all times.