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

Thursday - July 31, 2008

From: Jackson , MI
Region: Southeast
Topic: Pests, Trees
Title: Tulip tree with white spots on leaves in Mississippi
Answered by: Barbara Medford

QUESTION:

I have a tulip tree in my yard that blooms in the spring that is about 10-15 years old. However just this past week or so we have noticed that there is lots of white spots on the leaves and the branches. And many of the leaves are also turned blackish and a sticky syrup is leaking out of them all over our sidewalk. What is happening. This is our tree right in the front of our house that we love, can it be saved?

ANSWER:

Liriodendron tulipifera (tuliptree) is an excellent hardwood tree and native to Mississippi, so it should be able to do well there. Some sources tell us it suffers from no significant pests or diseases, but what do they know? Read this USDA Forest Service website Liriodendron tulipfera which lists some pests and diseases. Aphids, particularly tuliptree aphids, can build up to large numbers, leaving heavy deposits of honeydew on lower leaves, cars and other hard surfaces. A black sooty mold may grow on the honeydew. Although this does little permanent damage to the tree, the honeydew and sooty mold can be annoying. Powdery mildew causes a white coating on the leaves and is not usually harmful. Another possibility for the spots on the leaves is found in this Ohio Floriculture website on mealy bugs.

Some of the problems are more or less seasonal. The bugs and the mildew tend to flourish in hot, humid weather. Poor air circulation around the tree can be a contributing cause to mildew, so you might consider thinning the tree a little bit this winter. The Lady Bird Johnson Wildflower Center neither recommends for nor against the use of pesticides, but you might consult with your Mississippi State University extension office for Hinds County. They should know both whether there is an outbreak of problems with the tuliptree and be able to make recommendations for treatment.


Liriodendron tulipifera

Liriodendron tulipifera

Liriodendron tulipifera

Liriodendron tulipifera

 

 


 

More Pests Questions

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

Problem with Prosopis glandulosa (Honey mesquite)
February 27, 2014 - One of our mature Honey Mesquite trees is losing thumb sized branches high up in the canopy because something is stripping the bark. The branches are completely white for 8-12 inches. Of course the ...
view the full question and answer

Something eating holes in Texas Betony from Austin
June 06, 2012 - What pest is eating holes in the leaves of my Texas Betonys? They look healthy but almost all leaves have various sizes of round holes in them. What is the best cure for this? Thanks
view the full question and answer

Something damages leaves on Tecoma stans from Austin
November 08, 2013 - Help! Something is chomping my Esperanzas. I thought it was deer but they don't seem to be eating other yellow bells in my neighborhood. I think it's an insect. Something is completely stripping the...
view the full question and answer

Pruning live oak in Austin
April 28, 2012 - 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 ...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center