Contact your local county Extension office through our County Office List.

   
Planttalk Colorado™ is sponsored by Colorado State University Extension, Denver Botanic gardens, and the Green Industries of Colorado. For additional information on gardening, see Plant Select® and Extension Publications.

1756 – Tree Diagnosis   Arrow divider image - marks separation between nested pages that are listed as breadcrumbs.

Available resources on trees are overwhelming, especially when it comes to diagnosis of disease and insect problems. A Google search of honey locust diseases brings up 76,000 hits – information ranges from academic research institutions to home gardener websites. If you use the internet, how do you find only research-based information?

An excellent tool using the Google search engine is “advanced search”. By clicking “advanced search” you can limit the domain you want information from. By typing in “edu” in the domain search bar, this limits topic information to only academic resources, or those found on educational websites. Or just type “site:edu” after your keyword search.

Other resources include contacting a Certified Arborist, an experienced professional who passed an extensive examination concerning all aspects of tree care through the International Society of Arboriculture (ISA). Certified Arborists must also continue their education to maintain their certification. Therefore, they are more likely to be up-to-date on the latest techniques in arboriculture.

Other organizations include the Tree Care Industry Association (TCIA) and the American Society of Consulting Arborists (ASCA). Colorado State University Extension and Master gardeners are also sources of information.

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