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

Escarpment Black Cherry losing leaves in Austin, TX.
July 13, 2012 - Dear Mr. Plants: We live in Austin off of Mount Bonnell Road. We have beautiful 20 foot tall + black escarpment cherry tree very near the house with leaves turning yellow like it's about to drop th...
view the full question and answer

Problems with Savannah holly from Livingston TX
October 05, 2013 - Our Savannah Holly standards, planted in spring 2012, are now 10' tall, with 2-3" caliper trunks at the base. Some are in decline or have died. We thought the ribbons holding them to the nursery's ...
view the full question and answer

Texas persimmon with scorched leaves from Austin
July 11, 2013 - I planted a Texas Persimmon seedling (five gallon) in my yard in early April. It is in a sunny, well-drained spot, and I have watered it regularly since planting. All was fine until the last weekend i...
view the full question and answer

Plant mistakes from Cedar Park, TX
April 09, 2014 - At our "Wilts End" in Cedar Park, TX. and are looking for a tall shrub/tree that will hide a 6-ft tall concrete wall and muffle the noise from a busy street. The wall forms a very wide-angled V shap...
view the full question and answer

Leaves on 3 year old maple turning brown in Lebo, KS.
July 16, 2011 - Hello, one of our five Maple trees which is is 3 yrs. old now, we saw a week ago that the leaves started turning brown and dropping. My question is: Will the tree survive this and return healthy next ...
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