En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Problems with a Sherman (Shumard?) Oak from Bixby OK

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.

Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Monday - May 14, 2012

From: Bixby, OK
Region: Southwest
Topic: Diseases and Disorders, Trees
Title: Problems with a Sherman (Shumard?) Oak from Bixby OK
Answered by: Barbara Medford and Jimmy Mills

QUESTION:

We have done extensive research on oak fungi/diseases/pests could be affecting our Sherman Oak tree but we are stumped. The leaves are falling off and have some sort of moldy bunch within the leaf itself. We have searched all throughout the web and reviewed image searches - but nothing is matching what is happening to our leaves. The oak seems to be regenerating new leaves - and none of the neighboring Sherman Oaks seem to be contracting this same problem. I have pictures that I can email - please let us know if you are interested in seeing them. Thank you!

ANSWER:

Our first problem is that we have no idea what a "Sherman Oak" is. We cannot find the scientific name for an oak by that common name. When we googled on it, we got a number of references to Sherman Oaks CA. Finally, by rewording our search criteria several times, we found this article about the Sherman Oak Tree, which was apparently an oak tree under which General Sherman camped during the Civil War. This still doesn't tell us what species of the genus Quercus (oak) it is or was. It could be a hybrid or perhaps this was a trade name given to it by some nursery to make it more attractive to buyers.

Shortly after we published this answer, another member (and smarter than this team member) on the Mr. Smarty Plants Team ventured the possibility that the oak being referred to is Quercus shumardii (Shumard oak). Follow the plant link to our page on that oak to see if it appears to be what you have. We also found an article on the Shumard Oak from the University of Connecticut that indicates Oak Wilt will kill this tree, so we think our advice to seek the advice of a licensed arborist is good. And maybe he can tell you if it is, indeed a Shumard Oak. We checked the USDA website for this tree, and found that it is native to Tulsa County, Oklahoma.

Thank you for offering us pictures, but we are no longer set up to receive pictures. You can go to our Plant Identification page to find the names of some forum websites that will take pictures.

It sometimes helps to know that scientific name of a plant, because we can search for that on the USDA website, and also use it to identify a pest or problem. In this case, we are going to find some more general sites that might help you identify the problem or find someone who can, without knowing exactly what the tree is. In fact, we just answered a similar question about oak tree problems in Oklahoma. We suggest you read this previous Mr. Smarty Plants answer and follow the links to see if you can figure it out. And, as we did in that previous answer, we urge you to have it looked at by a licensed arborist. Not only might he be able to identify the problem, he probably can identify the tree. If he does, let us know.

 

 

More Trees Questions

White ash trees with bunched up leaves from Nevada TX
June 09, 2012 - I have very young white ash trees (3' tall planted this winter) The leaves are crippled not opening up bunched up together and have a white powder. Is this aphids mites or what. Only on one tree. Th...
view the full question and answer

Landscaping with native plants in Austin
October 06, 2005 - I'm expanding a flower bed in front of my house and would like to keep it all natives. 1) How do I find out what type of soil I should add? (I live near Hyde Park, Austin and haven't had a soil te...
view the full question and answer

Problems with native palms in Austin
April 10, 2011 - We had a large variety of California fan palms and blue sabal palms in our yard that were damaged during the last freeze. We found that several of them now have "spear pull," which means we could p...
view the full question and answer

Landscaping trees and shrubs non-toxic to dogs from Monticello FL
March 08, 2013 - We're landscaping and need advice on large and small evergreen trees and shrubs that are native to or will flourish in North Florida. We plan to put in a treeline (large and semi-large trees) as wel...
view the full question and answer

Live oaks lifting up sidewalks in Palm Coast FL
December 12, 2013 - My live oak trees roots are lifting up my side walks. Can I cut just the roots that are causing the problem without hurting the trees? Thank you.
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center