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Seasonal Care for Trees and Shrubs
in Northern U.S. Climates

Season of year
Health monitoring
Key

Keep a watchful eye for problems that may be developing on the plants in your landscape. Timely prevention is always more effective and economical than reacting to problems once they have developed.  Certain samples can be sent to your local Plant Disease Clinic (.pdf) for diagnosis.

For more information : Diagnosing Tree Health Problems (.pdf) and Forest and Shade Tree Health

If damages are observed and if Plant Health Care (PHC) treatments are necessary, contact a local Certified Arborist for an on-site diagnosis. Certified Arborist's in your area can be found through the International Society of Arboriculture (ISA) search engine.

 

 

 


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Revised: 10/02/2008 Liam McClannahan, Stephen Schott, and Dan LaMere at treeinfo@umn.edu.
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