En EspaÑol

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

Wednesday - August 19, 2009

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders
Title: Webs on tree trunk, probably bark lice
Answered by: Nan Hampton

QUESTION:

webs on tree trunk and creeping up. See no spiders or worms. what could be. very fine, thick web

ANSWER:

This sounds like webs from barklice that are eating fungus and lichens on the bark of your tree.  They aren't lice at all, but are insects in a group called Psocids.  Although there are members of this group that are considered pests (e.g., booklice) the bark lice don't harm the tree—in fact, they are beneficial since they are cleaning up the bark.  We had a question a while back about webbing on a iive oak in Austin.  Here is the link to the answer where you can learn more about bark lice.
 

More Diseases and Disorders Questions

Leaves of non-native crape myrtle browning in Sinton TX
June 12, 2010 - Crepe myrtle – tips of leaves are brown and curling up.
view the full question and answer

Plants to grow in high zinc, lead and copper soil in Los Angeles
January 24, 2011 - We live on the Westside of Los Angeles and have just been given the bad news that our beds are high in zinc (86.39), lead (45.98) and copper(12.95). Can you recommend some plants that may grow in thes...
view the full question and answer

Curling, Red Leaves on Gaura
July 18, 2013 - My gaura had most of its lower leaves turn red and then fall off. It is July now, I bought and planted it in May where it seemed to do really well growing several more inches tall and blooming nicely....
view the full question and answer

Problems with Copper Canyon Daisy from Austin
June 08, 2014 - We had 3 copper canyon daisies. Two of them bloomed profusely last year, but only one has come back this spring. We cut them all back as instructed. When it was clear that two were not coming back, we...
view the full question and answer

Brown flakes on prickly pear in Los Angeles
June 03, 2008 - I live in Los Angeles CA. I have desert type plants in my landscape. I have prickly pear cactus that have developed some light brown, almost golden flakes on the skin of the pads. I believe it is call...
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