En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Oaks emitting substance in Lakeway TX

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

Tuesday - August 14, 2012

From: Lakeway, TX
Region: Southwest
Topic: Pests, Trees
Title: Oaks emitting substance in Lakeway TX
Answered by: Barbara Medford

QUESTION:

We have two large oak trees in our yard that are emitting a clear, very sticky, non-fragrant substance. The leaves are beginning to be covered as is our deck. Bees are now attracted and I am worried how long this will last and if I should be treating the tree in any way. Do you have any idea what this could be?

ANSWER:

One word: Aphids. They are unusually bad this year, and we have answered many questions on them. From the University of California Integrated Pest Management Program, here is an article on managing aphid infestations.

Here are some previous answers to help you out:

Austin Aug. 8, 2012

Austin July 30, 2012

Austin July 14, 2012

Since all of these have more links in them, and possibly some duplications we think that's 'nuff said,

 

More Pests Questions

Eliminating straggler daisy from St. Augustine grass in Hochheim TX
May 14, 2010 - I have straggler daisy in my St. Augustine grass. What herbicides work well on straggler daisy and won't ding up the grass too bad?
view the full question and answer

Century plant leaves falling over from San Antonio
April 10, 2013 - Have a large century plant about % feet tall. The leaves are falling over. Can you tell me what to do to avoid this.
view the full question and answer

What insect eats Alamo Fire blue bonnets from League City TX
June 10, 2013 - What insect eats Alamo Fire blue bonnets? Something seems to be eating new seedpods.
view the full question and answer

Changing colors on Mexican Plum trees from Bellaire TX
June 20, 2013 - The leaves on my Mexican Plum tree have recently started turning yellow/brown and the veins in leaves are red. Is this a watering issue or disease issue? Mites are on the leaves. This has been a ra...
view the full question and answer

Danger of lichens damaging trees
September 26, 2007 - My mom lives east of Buda, Texas where she has planted many different kinds of trees, which are all over 10 years old. Now, they all have a moss or lichen growing on the bark of the trees. She is worr...
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