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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Sunday - January 06, 2013

From: Semmes, AL
Region: Southeast
Topic: Diseases and Disorders, Pests, Vines
Title: Problems with crossvine from Semmes AL
Answered by: Barbara Medford

QUESTION:

I have a 3 year old cross vine (tangerine beauty) and the leaves have started turning black and falling off the plant. I have two plants growing on the same pergola (opposite ends) and the second plant is beginning to get splotchy leaves and I am afraid both of these beautiful plants will die. What can I do? I can send a photo if that would help. I've tried asking at local garden centers, but no one seems able to help me.

ANSWER:

According to this USDA Plant Profile Map, Bignonia capreolata (Crossvine) grows natively to Mobile County, Alabama. This is usually the first thing we look at when we are trying to diagnose a problem with a plant. Trying to grow a plant in the wrong climate or soil is frequently the first problem we find. In this case, however, it is obviously in the right spot.

Here is a previous Mr. Smarty Plants answer on care of crossvine. From BackyardGardener.com, here is an article on Bignonia capreolata (Crossvine). Scroll down the page and you will find information about spider mites, mealy bugs and fungus, all of which can affect this plant. From your description, we would suspect fungus, possibly caused by poor circulation of air or not enough sun on the plant. Since we can't see the plant (and, sorry, we no longer can accept pictures) we will have to give you information to make your own diagnosis.

 

From the Image Gallery


Crossvine
Bignonia capreolata

Crossvine
Bignonia capreolata

Crossvine
Bignonia capreolata

More Pests Questions

Live oak trees buzzing in Taylor TX
October 20, 2012 - Is it possible for live oak trees to make a buzzing sound? We have heard this sound under our live oak and were worried it was bees but we don't seem to see any. I also heard the buzzing under my mot...
view the full question and answer

Control of borers attacking Prunus serotina
August 30, 2006 - Where can I find information to control borers that seem to attack only Prunus serotina v. exemia?
view the full question and answer

Cause of yellowing buffalo grass (Bouteloua dactyloides)
June 07, 2008 - We are getting large yellow areas in our buffalo grass lawn and think this is probably due to grub worms. Are grub worms the likely culprit and if so, what is the best way to get rid of them? We don...
view the full question and answer

Desmodium spp. (beggar's lice) in Leander TX
November 11, 2011 - Our home backs up to a greenbelt on Blockhouse Creek in Williamson County, Texas (FM 1431 and Parmer Lane). The combination of the flood and drought has left our beautiful greenbelt with an abundance...
view the full question and answer

How are NPIN Deer Resistance Ratings Determined?
May 06, 2014 - If your plant data-base (which is the best thing since sliced bread!) is silent on the degree to which a plant is deer-resistant, does this mean you just don't have enough information to make the cal...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center