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Webinar: "PGRs in Tree Care"

In Partnership with ISA Michigan

The GAA is excited to partner with ISA Michigan on a series of webinars throughout the summer. The lineup includes excellent speakers on a range of topics.

"PGRs in Tree Care" 

Blake Thilmony, Research Scientist Rainbow Ecoscience

Reducing the amount of top growth a plant puts on in a season can be beneficial from an aesthetic and pruning labor standpoint. Modern growth regulators offer a host of secondary health benefits that improve a plant's chances of surviving in our urbanized ecosystems. By the end of this talk attendees should have a better understanding of how plant growth regulators work, and their application in the landscape.

About the speaker: 


Blake Thilmony Gillis is a Research Scientist on the R&D team for Rainbow Ecoscience. Blake’s role is to design and manage various research projects and trials to develop new products, protocols, and equipment for the green industry.

Blake began working with Rainbow Tree Companies in 2017, after earning her Master’s in Plant Science from North Dakota State University. Blake started as a plant healthcare technician before joining the Vegetation Management division of the company, managing tree growth under powerlines with Cambistat applications. Her background in plant healthcare, experience, and technical expertise launched her into a research role in 2018; she has taken on several research projects, including PGR (plant growth regulator) research, reduced irrigation trials, development of the Quantum tree injector, novel fungicide development and many others. Blake has since become the senior researcher with a commitment to transform way that landscapes are managed in the urban environment, continuously seeking out new innovative technologies and methods to improve plant healthcare.

Your personal Zoom link to access the webinar will be emailed separately by ISA Michigan two (2) days before the event. You WILL NOT receive the link at the time of registration


Cost: $25 GAA members
$40 non-members


2024 Remaining Webinars: 

7/10/2024 COMPETING LEGAL INTERESTS IN STREET TREES James Komen, Consulting Arborist, Class One Arboriculture 

7/24/2024 PLANT GROWTH REGULATORS (PGRs) IN TREE CARE Blake Thilmony, R&D Project Manager, Rainbow Ecoscience 

8/20/2024 APPRAISING TREE LOSSES FOR INSURANCE ADJUSTERS James Komen, Consulting Arborist, Class One Arboriculture 

8/21/2024 SPOTTED LANTERNFLY (SLF): THREATS AND MANAGEMENT STRATEGIES Mark Ware, Arborologist, Rainbow Ecoscience 

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July 10

Webinar: Competing Legal Interests in Street Trees

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July 31

Free Third Quarter Networking/Breakfast Social (with CEU)