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

Brown leaf problem with herbaceous blooming plants from Greenfield MA
May 28, 2014 - I have 3 plants cimicifuga brunette and lots of astile planted near each other. Suddenly the edges of leaves have turned brown and shriveled and spread to entire plant, all of them. It has not been ...
view the full question and answer

Live oak leaves turning yellow after planting in Houston
December 19, 2011 - We bought a 65 gallon live oak in early October, and have been watering fairly heavily three days a week. It seemed OK, then all of a sudden lots of the leaves are turning yellow. Is it getting too ...
view the full question and answer

Protection of American beautyberry in Pennsylvania
July 30, 2007 - I have had a beauty berry 2 years now. I trim it back in early spring and it returns beautifully. ...but no flowers this year and it's almost August. Last year, very few berries. Can you help? I...
view the full question and answer

Oak Wilt in Georgetown, TX
November 17, 2014 - We have lost several live oaks to oak wilt. Another couple are dying but still have some green leaves. Is it OK to cut down these trees now or should we wait until they are entirely dead? I've heard ...
view the full question and answer

Need help with dying clumps of Cedar Sedge
June 24, 2015 - Carex planostachys. This grass was planted 2 years ago in light shade. It grew well until this year. Now some clumps are dying. Others in same area look fine. No insects can be detected. Why are...
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 | SITEMAP | STAFF
© 2016 Lady Bird Johnson Wildflower Center