One of the foundational concepts in tree appraisal is the Principal of Substitution. A thing cannot appraise for more than a substitute of equivalent utility. Possibly the hardest step in applying this principal is selecting a “functional equivalent” to the subject tree or trees. When selecting the best appraisal technique, an appraiser must ask: “Is…

This webinar will be an amended version of the full presentation at the WAA Summer Workshop to be held at the University of Wisconsin River Falls campus on July 26. Urban tree damage due to weather events in the upper Midwest are usually the result of wind loading events, as well as snow and ice…

Street trees are ubiquitous in urban areas. Municipalities often – but not always – assume control over the trees growing along public rights-of-way. But what degree of ownership and control do property owners and municipalities each have over the trees? This talk presents a sampling of several cases that illustrate some of the conflicts that arise…

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…

Seats Available: 36 Minimum Seating: 5 Please check the ISA website (www.isa-arbor.com) for more information and for registration under Credentials/ Exam Information. Registration for the exam is made directly with the ISA, and must be completed at least 12 working days in advance.  This is an application process that has certain requirements. Here is the…

Plan-ting for the Future Join your colleagues for the WAA Summer Conference at the University Center at UW–River Falls in River Falls, WI, on Friday, July 26th. The Program Committee has put together another outstanding agenda for this event. We are offering Two Tracks of Education, one indoors and one outdoors, covering information on a…

Glen Park, River Falls, WI 631 Glen Park Rd., River Falls, WI 54022 Friday will be gear check and the walk-through. Saturday will be the 5 preliminary events and preliminary awards. Sunday will be the Master’s Challenge and final awards. HOTEL INFORMATION Hotel Blocks: book by June 25th, 2024 for special rate River Falls Country…

How do I remedy poor branching structure? What are my options with these co-dominant stems? Corrective pruning has many implications which includes tree structure, health, response to damage and practice. Pruning to improve performance and preventing failure should be a major consideration for every arborist.This session will provide details on pruning objectives using case study scenarios…

We are pleased to announce the second year of our Youth T-shirt contest!  We hope all our members will encourage a child between the ages of 8 and 14 years old to submit a drawing.  Our 2024 theme will be “Trees of the Future”.  Here are the rules: Tips and Tricks:

Identify the threats bur oak blight and two-lined chestnut borer have on native bur oaks in the Midwest and discuss the strategies involved to maintain healthy bur oaks.  Speaker Jay Goughnour, Arborjet|Ecologel - Upper Midwest Regional Technical Manager Jay started at Arborjet in the winter of 2020. Growing up on a farm in central Iowa, Jay…

Registration Deadline for Teams: Aug. 4
Registration Deadline for Sponsors: July 29

When disaster strikes, consulting arborists are called upon by insurance adjusters to assess and value the damage done to trees. This presentation shows case studies of collaboration between consulting arborists and insurance professionals, focusing on claims from the Napa and Ventura fires, the Santa Barbara mudslides, and the Phoenix monsoonal windstorms.See what key data an…

Spotted Lanternfly (SLF) has expanded across the country since it was first discovered in 2014 in eastern PA. In 2022, it was found as far west as Iowa and as far south as North Carolina. With this expansion, it has become crucial for communities, tree care, landscape, and pest management professionals to be ready to…