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
3 ratings

Friday - June 05, 2009

From: Cibolo, TX
Region: Southwest
Topic: Diseases and Disorders
Title: Rust-colored spots on Lantana?
Answered by: Joe Marcus

QUESTION:

Mr. Smarty Plants, I live in Cibolo TX and my lantana plants are about 3 years old. They have done exceedingly well until this spring. The leaves have developed brown, rust colored spots and the leaves are dying--even on the new growth. I have trimmed it back twice, first thinking it was due to a freeze, but now I can't figure it out. Is it a mold; insects; fungus? And if so, what do I use to revive them?

ANSWER:

The short answer is, we don't know what is afflicting your lantanas.  There is a rust fungus that infects Lantana spp, but so far as we know it does not occur in Texas.  Other possiblities are lacebugs, spidermites, aphids.  Another possibility is herbicide damage.  Sometimes desirable plants get damaged when weeds are being attacked with herbicides.

We recommend you take a plant sample - take an entire limb - to your county's Agricultural Extension Service office for analysis.  You'll probably want to call first to make an appointment.  If your county agent cannot diagnose the problem, he or she may advise you to send it to a lab for further analysis.  Once they determine the cause of the problem, they can recommend an appropriate course of action.

 

More Diseases and Disorders Questions

Problem with unknown tree in Austin, Texas
July 23, 2013 - Have recently moved to Austin, Texas and have a tree in my backyard that has been dropping leaves and one major branch appears to be dead. That branch has hard rust colored sap circles (about penny si...
view the full question and answer

Browned foliage on Juniperus ashei in Wimberley TX
April 03, 2011 - We are in Central Texas and have native "cedar" juniper trees. One with foliage that looked brown, on close inspection, is covered with white webs. The foliage looks like it is dying. No worms a...
view the full question and answer

Beneficial earthworms attacked by fire ants
August 04, 2006 - Is there a right way or a trick to releasing earthworms? I have a friend who has an abundance of earthworms in their soil so I took advantage of the situation. I released them in my freshly tilled gar...
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

Trees and shrubs turning brown in Dripping Springs TX
October 31, 2011 - Due to the extended drought - a number of trees and shrubs in our Dripping Springs area property have turned brown. Specifically: Live Oak; Agarita; Ash Juniper; Cedar Elm. Is this a dormant stag...
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