Host an Event Volunteer Join Tickets

Support the plant database you love!

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
1 rating

Monday - August 06, 2007

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Trees
Title: Yellowing leaves on young bur oak
Answered by: Barbara Medford

QUESTION:

I saw your response on 7/25 about leaves on mature live oaks turning yellow, then brown because of excessive rain. The same thing is happening to our young burr oak. Leaves are turning yellowish, then crinkly brown. The chinqapin and live oaks close by do not seem to be affected. Would this situation also affect bur oaks? If not, then do you have any recommendations?

ANSWER:

Quercus macrocarpa (bur oak), a native oak that produces awesome acorns (the "bur" in the name), are affected by the same situations as the live oaks. In fact, the article in Mr. Smarty Plants to which you referred was so good and covered the subject so well, that we don't see the need to repeat anything. Just take this link spots on oak leaves and it should answer your questions.


Quercus macrocarpa

 

 

 

 

 

More Trees Questions

Problems with red oak from Austin
July 31, 2013 - I planted 3 Texas Red Oaks several years ago. The trees are in a tight cluster just a few feet apart. At the end of last summer, one of them began to develop brown spots and yellowed leaves. This summ...
view the full question and answer

Identification of a tree in Florida with bell-shaped red flowers
November 23, 2012 - A friend in Florida has asked about identification of a tree with a flower none of us have ever seen. It starts with a green pod, then flowers into, what looks to me like a Chinese lantern, or bell. I...
view the full question and answer

Why so many Sugar Hackberry seedlings in my back yard in The Woodlands, TX?
May 25, 2013 - Why do I have so many Sugar Hackberry seedlings (Celtis Laevigata) sprouting up naturally in my back yard? There are a few Winged Elms in my neighborhood, but no Sugar Hackberry trees that I know of....
view the full question and answer

Rocky Mountain Juniper Grazed by Deer
April 29, 2013 - I have four Colorado red cedar (Juniperus scopulorum). The deer have eaten from their height down. Now these narrow top to bottom evergreens have only tops left. Will the bottom fill in if I protect t...
view the full question and answer

Privacy screen for Sedona AZ
August 02, 2013 - I live In Sedona Az. A builder just built a house next to my house and the new house is ugly to look at. What plant or tree would grow fast and reach 18 foot in height fast. It can be about 5 to 6 foo...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.