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
Not Yet Rated

Sunday - July 13, 2008

From: Round Rock, TX
Region: Southwest
Topic: Non-Natives
Title: Disease in non-native pittisporum in Central Texas
Answered by: Barbara Medford

QUESTION:

Is there a disease in central Texas (Round Rock) affecting dwarf pittosporum? Specifically, clusters of dead leaves and much leaf drop. Some white, cottony residue on wood but not sure if it is mealybug. Spreading to all pittosporum in my landscape. I have seen similar looking plants in town.

ANSWER:

Pittosporum is native to China and Japan, and therefore out of our range of expertise at the Lady Bird Johnson Wildflower Center. We encourage the usage of plants native to the area in which they are being grown because they are adapted to the soil, water, and environment. We did a little research and found that, indeed, pittosporum is vulnerable to aphids, cottony cushion scale and mealy bugs, which the site we were looking at said could be treated with horticultural oils. We neither recommend for nor against the use of pesticides, and are not familiar with their uses, especially on non-native plants. Therefore, we suggest you contact the Texas A&M AgriLIFE Extension Service of Williamson County for more specific information on what is going on in your area. Contact information and further links to that site are on their home page.

 

More Non-Natives Questions

Promoting growth on non-native dipladinias (mandevillia) from Point Pleasant NJ
May 26, 2011 - My Dipladinias were almost dead when I bought them last year, but after a little TLC, they blossomed like CRAZY in pots outside. They stopped blooming in November (I brought them into the house in Se...
view the full question and answer

Need some help with a Plumbago plant in Mission, TX.
August 06, 2010 - Hello..I live in south South Texas and have a plumbago. It gets about 4 to 5 hours of direct sun and lately some of the branches and leaves turn bright green almost yellow. Am I over watering or is ...
view the full question and answer

Kousa Dogwood Fruit Toxic to Dogs?
October 14, 2014 - Are Kousa dogwood berries toxic to dogs?
view the full question and answer

Non-native vines poisonous to animals from Park Ridge IL
June 18, 2012 - I have a Star Jasmine and sambac Philipine Jasmine Plant . Are they poisonous to cats or dogs. I have them in the house.
view the full question and answer

Failure to thrive of Actaea simplex in Washington State
September 07, 2008 - I have a Actaea simplex 'Hillside Black Beauty' that I planted in mid August 2007 in a partial, almost full shade spot. This year it came back , but the foliage is brown with dark and light green a...
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