Evergreen Ash Tree Diseases

Evergreen Ash Diseases and Care: A Comprehensive Guide for Arizona Gardening



Possible Reasons for Evergreen Ash Die-Off in Tempe, AZ 

Evergreen ash trees, also known as Fraxinus uhdei, are not native to Arizona and can be susceptible to various issues in the state’s climate. Here are some potential reasons for evergreen ash die-off in Tempe: 

  • Environmental Stress:  
  • Lack of Water: Tempe’s hot and dry climate can stress evergreen ash trees, requiring consistent deep watering, especially during the establishment period and summer months. 
  • Nutrient Deficiencies: Deficiencies in iron, magnesium, or other nutrients can weaken the tree and make it more susceptible to other problems. 
  • Pests and Diseases:  
  • Ash Borers: While the Emerald Ash Borer (EAB) is not a major threat in Arizona yet, other native borers can attack and damage evergreen ash trees. 
  • Fungal Diseases: Fungal diseases like Ash Yellows, while uncommon in Arizona, can also contribute to die-off. 

Solutions for Evergreen Ash Die-Off: 

  • Proper Watering: Provide deep watering regularly, especially during the hottest months. 
  • Soil Analysis and Fertilization: Conduct a soil test to identify any nutrient deficiencies and fertilize accordingly with professional guidance. 
  • Insect and Disease Management: If you suspect insects or diseases, contact a Tree Care Professional for proper diagnosis and treatment recommendations.  
  • Local Resources: 
  • Warner’s Tree Surgery: They offer tree care services including diagnosis and treatment for ash tree problems (480)969-8808 [https://mesatreedoctors.com]. 
  • Arizona Cooperative Extension – Pima County: Provides science-based information on various horticulture topics, including tree care https://extension.arizona.edu/

Remember, early detection and treatment are crucial for saving your evergreen ash tree. Consulting a Tree Care Expert for advice is highly recommended. 

* Warners Tree Surgery is a Mesa, Arizona (Based) “Family Business”. Our Tree Disease Expert, Warner, is available to help you with your Sick Trees if you live within a 30-mile radius of Mesa. Warner Working, Our Tree Doctor, cares for Many Different Species of Trees in and around the cities of Mesa, Gilbert, Chandler, Tempe, Sun Lakes, and Scottsdale. If You need of a Tree Disease Professional with Over 50 Years of Knowledge and Experience, then Call “Warners Tree Surgery.” Our Number Is: (480) 969-8808 For More Information/Videos Visit Our Websites https://warnerstreesurgery.com/ Or https://mesatreedoctors.com/ 

#tempeazashtreecare #mesatreedoctors.com 


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