Rent Shop Volunteer Join

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

Monday - October 07, 2013

From: Cedar Park, TX
Region: Southwest
Topic: Non-Natives, Diseases and Disorders, Shrubs
Title: Problems with non-native photinia in Austin
Answered by: Barbara Medford

QUESTION:

Hi, I live in Cedar Park, TX (Austin Suburb)and have planted a number of Photinia shrubs in various areas of my property. All about 10 months old. The leaves are curling along their length on many of them in two area. They are curling up into semi tube shapes that resemble a closed Venus Fly Trap plant in shape. The plants appear to be otherwise healthy, with lots of new red growth appearing after the heavy 2" rainfall of about 10 days ago. I have sprayed them twice with Neem Oil mixed at the higher concentration that works for either Fungus or insects, and have seen no change. The curled leaves do not have any evidence of catepillar pupae or webs as might be the case with a leaf roller infestation, however, I DID notice when I last sprayed them with the Neem oil, that I did have some tiny moth like insects flying off as I sprayed them. Any suggestions or ideas? These are still under warranty, for a few more weeks, and I have talked to Home Depot where I bought them, and they have told me I can return them with no questions asked.

ANSWER:

It would be nice if you could return the photinias; read this previous Mr. Smarty Plants answer to see why,

 

More Diseases and Disorders Questions

School project on acid rain effects on plants from Austin
October 18, 2013 - Hi I go to an Austin high school and I am doing a project on how acid rain affects plant growth. I am wondering if you know any plants that would be more or less susceptible to acid rain for this proj...
view the full question and answer

Need to identify a fungus in a flower garden in Lansinging, MI.
April 25, 2012 - I have a fungus in my flower garden. It is white and ground hugging. It is in a moist area under a large spruce where mulch has been laid down. When I step on it , it expels a green dust. What is it a...
view the full question and answer

Problems with Gregg's mistflower from Fredericksburg, TX
May 19, 2013 - Dear Mr. Smarty Plants: Something is wilting the tops of my Gregg's mistflower, Conoclinium greggii. I cannot see bugs on the plant, so I am wondering if it's a disease. The problem is widespread to...
view the full question and answer

Chlorotic leaves on yaupon in Austin
April 04, 2011 - My yaupon holly looks chlorotic, it is 7 years old, I do not feed it, just a little seaweed occasionally. I am a totally organic gardener.
view the full question and answer

Mountain Laurels are dying in Georgetown, TX.
April 02, 2012 - Ten year old Mountain Laurels both last year and this spring have had entire branches turn brown just after blooming this Feb. Round Rock Arborist suggested I contact you. Last year one of my laurels...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.