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 - June 12, 2011

From: Downers Grove , IL
Region: Midwest
Topic: Diseases and Disorders
Title: Rust problems on Jack in the Pulpit in IL
Answered by: Anne Bossart

QUESTION:

The last 2 years I have noticed that some of my jack in the pulpit plants have something that makes me think of a copper color rust.It seems to start on the underside of the leaves. What can I do to get rid of it and/or keep it from spreading? Thank you.

ANSWER:

Unfortunately, wihtout actually seeing your plants, we cannot make a conclusive diagnosis of your problem.  We recommend you contact your local Agricultural Extension office.  They will be able to offer suggestions and perhaps have you drop by with a leaf sample.

A quick internet search indicates that Jack in the Pulpit plants are quite susceptible to rust fungi. This comprehensive article by Wikipedia may help you diagnose the problem yourself and will offer treatment suggestions.

The best advice we can offer is to remove infected leaves and destroy them at the first sign of infection. When plants are finished blooming flower stalks should be cut down and destroyed. Good sanitation is necessary as rust spores over-winter on the ground in plant debris.  This ehow article on organic rust control may be helpful ... we strongly discourage the use of chemical fungicides.

 

 

More Diseases and Disorders Questions

Mystery pest eating portulaca blooms
July 02, 2006 - I'm from Texas and I purchased some portulaca from a local nursery about three weeks ago and planted them in the front yard....with plenty of sun. Here's the problem. The foliage seems very health...
view the full question and answer

Aphid infestation from hackberries in Austin
August 22, 2010 - I've got 5 hackberry trees in my yard and they are all heavily infested with woolly aphids! I wouldn't usually mind, but the aphids are now all over my newly planted native plants. I've read up on...
view the full question and answer

Moth using Agarita as its larval food in New Braunfels, TX
March 27, 2009 - What moth uses agarita as its larval food? It is a perennial problem that can nearly defoliate the specimen and severely limit its flower production.
view the full question and answer

Young Maple Dropping Leaves in Late Summer
September 05, 2013 - I have a 6-year-old maple tree. I'm not sure what type it is as the builder planted it. It is as tall as our two-story house and very healthy. It's the biggest tree in our neighborhood because we fe...
view the full question and answer

Damage to native elm in Texas
August 20, 2008 - We had a major landscape renovation done over the winter. One of the trees, an elm about 10 yrs old, remained in the bed although plants around it were removed. The tree has suddenly started turning...
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