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 - September 09, 2012

From: Round Rock, TX
Region: Southwest
Topic: Diseases and Disorders, Pests, Shrubs
Title: New nursery plants with sappy spots from Round Rock, TX
Answered by: Barbara Medford

QUESTION:

We live on the west side of RR, near Cedar Park and recently bought three 15 gallon cherry laurels from a nursery. Started to plant them today as we bought them a week ago and noticed base of the trunk from top to bottom is covered in black spots and some look like sap coming out. What is it and how can I save them? There are hundreds of spots on the trunk, I can email a picture. Thanks!

ANSWER:

Honestly, if you still have your charge card receipt or other proof of purchase, we would hotfoot that Prunus caroliniana (Cherry laurel) back to the nursery. That sounds like an insect of some sort, and the loss of sap is a serious threat to the plant. Not only do you not want to spend the time and money planting that plant, you don't want whatever it is spreading to other parts of your garden. In fact, if you don't have proof of purchase, and the nursery won't admit liability, we would recommed leaving the infected plants there anyway, to get them out of your garden.

 

From the Image Gallery


Cherry laurel
Prunus caroliniana

Cherry laurel
Prunus caroliniana

Cherry laurel
Prunus caroliniana

More Diseases and Disorders Questions

My weeping willow is not doing well - Taneytown, MD
June 15, 2009 - I have a weeping willow tree. It is in a very wet place, soil gets plenty of water, but the bark on the tree is raising up and blistering up. The leaves are very sparse on it this year. I can't se...
view the full question and answer

Problems with red oak trees in North Central Texas
July 13, 2013 - What is the disease effecting Red Oak trees in North Central Texas; causing them to lose leafs in Spring/Summer and turning the remaining leaves light yellow/lime green in color. Thank you.
view the full question and answer

Red oaks that didn't drop leaves in Austin
April 04, 2012 - I have a number of Red Oaks on land that did not drop leaves this past fall. Now these same trees seem to be dead? It seems there's some type of mold/fungus on the trees. Some trees have small patche...
view the full question and answer

Disease-resistant squash varieties for Central Texas
February 03, 2008 - Can you give me names of some disease-resistant summer squash varieties available in Central Texas?
view the full question and answer

Leaves dropping on evergreen sumac in San Antonio
January 11, 2012 - I have a large evergreen sumac in my back yard that started off as a small shrub 10 years ago. This summer the leaves turned red and now have dropped off. Is the plant dead? It sent out two smaller pl...
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.