En EspaŅol

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
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

Saturday - April 28, 2012

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Pests, Trees
Title: Pruning live oak in Austin
Answered by: Barbara Medford

QUESTION:

Hi, We recently purchased a house in South Austin and there is a huge Live Oak Tree about 6 feet from the back door (so so so love it!) The only real issues I have so far are: 1. Needing to trim a few bigger dead branches (about 24 foor high where they come off a bigger branch directly over where people would be if we had company over) before it just falls off on some one. After reading other post on this site I see it is not good to trim an Oak between Feb and June, so I guess I can wait till July when the real heat is on and do it (and paint seal it) my question is if it just snaps/breaks off on its own should I go paint/seal it as soon as I see that it fell? Might be hard as I have no way of reaching it to do so with out leaning on the rest of the dying branch. Which will probably break as well.. Or (if it breaks) should I just go ahead and trim it since it is already exposed and paint it then so I don't have to do it again in a few months and risk double exposure? 2. There are many Suckers popping up all over, right outside our door, and in between 2 small slabs of concrete, some are already getting over a foot high, If I do not weed-eat them down, at some point my dogs will chew on them and break the bark on them any way, is there a good way of handling this?

ANSWER:

The first thing we would recommend is that you engage a licensed arborist to make these decisions. He will have ladders, proper pruning equipment and pruning paint. We realize that is not free but, compared to the value of your live oak and the expenses of a broken leg, we believe it's the best way to go.

The rule on pruning live oaks is that if the branch is larger around than your thumb, you should paint it with pruning paint. Those suckers in the ground should be nipped off with pruning shears very close to the ground. They will keep coming up, but just persevere. Do not, please, use a weedeater around the tree, ever. Damage to the bark, especially during the times of year when the Nitulidid beetle is active, could quickly cause a sap leakage that would invite the beetle over for a drink. And that beetle might very well already have had a drink at another wounded oak where Oak Wilt was already present, the fungus would stick to the body of the beetle and would infect your tree.

It sounds like your problem mostly is deferred maintenance on the tree (that is, those dead branches). If the arborist you bring in thinks the maintenance can wait until a safer time of year, be sure and do it when the right time comes. After that, taking care of anything like that immediately will keep you from having such a major problem again. It would be a good idea to read the information on Texasoakwilt.org.

 

More Trees Questions

Seasoning oak for burning
December 18, 2008 - I have an oak on my property that has been dead for at least two years. It has produced no leaves. When I cut it down (it was 93 inches around), it looked extremely healthy. We split it up and my f...
view the full question and answer

Frost protection for non-native citrus trees from Austin
November 24, 2013 - With ice predicted, should I pick citrus, lemons, limes, satsumas that are not quite ready?
view the full question and answer

Identification of tree with red feathery leaves
March 08, 2012 - What is the name of a tree with dark red leaves, feathery, slim trunk; maybe in the pepper family? Jedi?
view the full question and answer

Disease and soil disturbance effects on Pacific madrone
April 02, 2007 - I have a couple acres, here in Northern California Sierra Nevada foothills. My property has many, many trees - quite a few are the beautiful (yet messy!) Arbutus menziesii, or Pacific Madrone. Some ...
view the full question and answer

Viability of Texas Mountain Laurel in Louisiana
March 19, 2008 - I just returned from a visit to Austin and I saw the Texas Mountain Laurel everywhere. I live in the Baton Rouge, LA area and would like to know if performing some soil amendments would allow me to gr...
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