Host an Event Volunteer Join Tickets

Support the plant database you love!

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 - June 27, 2011

From: Iredell, TX
Region: Southwest
Topic: Pests, Shrubs, Trees
Title: What's attacking my Nellie Stevens Holly plants in Iredell, TX?
Answered by: Jimmy Mills

QUESTION:

I just bought 10 Nellie R. Stevens holly bushes and planted them as a screen. The leaves on some of the plants are at least half white - not yellow but white. Apparently they were like that when I bought them and I cannot figure out what could make leaves turn white. Can you please help me? Thank you.

ANSWER:

One possibility is that the leaves have been attacked by leaf miners. These are the larval stage of flies or moths that are inside the leaf eating the mesophyll of the leaf. The mesophyll cells contain most of the chloroplasts in the leaf, and when they are gone, the leaf looses its green coloration, ie it becomes white. This link to the University of Florida IFAS Extension has a description of the pests and suggestions for treatment.

This link to About.com has useful information about Nellie R. Stevens Holly.

 

More Pests Questions

Avoiding insect bites while gardening in Kansas
December 03, 2015 - I recently moved into Mission, Kansas(Johnson County). Every time I go do any yard work I get a couple of insect bite looking spots on body. They are somewhat painful and very itchy. One of them got i...
view the full question and answer

Something damages leaves on Tecoma stans from Austin
November 08, 2013 - Help! Something is chomping my Esperanzas. I thought it was deer but they don't seem to be eating other yellow bells in my neighborhood. I think it's an insect. Something is completely stripping the...
view the full question and answer

Problems with non-native Banana Shrub from Houston
May 01, 2014 - My 7' beloved Banana Shrub (magnolia) has white dots on top of the leaves and nasty black stuff covering the backside of the leaves. The plant is dropping leaves. What can I do to save it? I has bee...
view the full question and answer

Insect damage to Meyer lemon in Texas
February 19, 2015 - Dear Mr. Smarty Plants, I have a Meyer Lemon tree in Galveston. It produced a lot of lemons. However, something has bit up to quarter sized holes from the side edges of the leaf. Could you please...
view the full question and answer

Viburnum insect damage
October 08, 2009 - I have a highbush cranberry that gets covered in 1/4in black bugs every spring. It makes lots of holes in the leaves. What are they and how can I get rid of this insect.I have tried neem oil but it do...
view the full question and answer

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