En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Pruning live oak in Austin

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 Pests Questions

Possible webbing bark lice on oak tree
August 08, 2008 - We live near the Center and have a large live oak tree in our yard. Recently the lower trunk has been covered with thin, white weblike material (not sure if spider web). What could this be and is it d...
view the full question and answer

Plants that donkeys won't eat
August 08, 2012 - What plants/trees do donkeys NOT like? I live in Hawaii on the Big Island and they visit once a week in my yard. I like them but would prefer that they stay just outside. Unfortunately they like my...
view the full question and answer

Snails in my flower beds
May 06, 2009 - I live in Kingwood, Texas (north of Houston). I have been inundated with snails in my flower beds in my front & backyard. I really didn't want to use a pesticide, but they were eating all of my flo...
view the full question and answer

red maple bark damage by squirrels
April 15, 2011 - We have two acres of land, largely covered by various oaks and cherry laurels -and, after many hours of cutting down chinese tallow trees..finally some red maples. Our problem is that we also have a s...
view the full question and answer

Perennial plants resistant to cutter ants in Aransas Pass, TX
January 12, 2010 - We are moving to Aransas Pass, Texas. Are there any perennial plants resistant to cutter ants?
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