Dryad, LLC

08/07/2025

Just as impressive underground as above ground. Despite their incredible heights of 300+ feet, typical redwood root systems are relatively shallow, only 6 to 12 feet deep. Redwoods create the strength to withstand powerful winds and floods by extending their roots outwards, up to 100 feet wide from the trunk, and living in groves where their roots can intertwine. This ancient giant fell naturally and will continue to provide life to seedlings as a nurse log for many years to come. Sequoia and Kings Canyon National Parks. Photo by Jessie White - Ancient Forests

07/28/2025

05/01/2025

ABC News joined The Arbor Day Foundation and the Altadena nonprofit Amigos de los Rios to discuss replanting and preserving trees in the wake of the Eaton Fire.

04/20/2025

Researchers from the Universities of Toronto, Florida, and Wisconsin-Stevens Point are researching how arborists perceive the likelihood of failure of included bark. They've put together a survey with scenarios and photos and are looking for tree care professionals to rate the likelihood of failure. As an incentive, you have the option to enter a drawing for one of ten $100 USD gift cards to an arborist supply store!

The link to the anonymous survey can be found here: https://ow.ly/EnH450VAeWR

01/19/2022

https://www.wcisa.net/meeting/6969

The members only section allows you to manage your contact information and communication preferences. You will also be able to access your WCISA membership information as well as track your certfications, CEUs, register for meetings and sign-up for tests.