Explore Plants

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
    
 

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

Removing non-native plants appearing in Austin in early spring
March 14, 2012 - In order to know which plants to keep and which to remove, is there a source to look up and identify common non-native plants that are seen in Austin about this time of the year (late winter, early Sp...
view the full question and answer

Problems with non-native hollyhock in Austin
April 03, 2010 - Our hollyhocks develop small yellow spots on the leaves; these eventually spread into little swellings on the underside; I think of them as lesions. They spread and the leaf turns brown and shrivels ...
view the full question and answer

Non-native creeping fig
February 26, 2009 - I like the creeping fig that covers my brick wall but the roots are very invasive and are choking my rose bushes and other surrounding plants. I spent two days removing the roots and loosening the so...
view the full question and answer

Transplanting bamboo
July 29, 2008 - To transplant bamboo from one place to another, do you dig the plant up or do you get a cutting, put it in water and then root the plant?
view the full question and answer

How to care for non-native gardenia
May 10, 2010 - My gardenia is about 20 years old about 5 feet tall and for the first time is leggy looking this year, not too many leaves and they don't look real healthy. Do I need to cut it back some. Last year...
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.