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
6 ratings

Friday - May 31, 2013

From: Valatie, NY
Region: Select Region
Topic: Pests
Title: Round green seed pods are likely leaf galls
Answered by: Nan Hampton

QUESTION:

While walking on a tree-lined dirt road after a mid-May storm, I noticed several seed pods but could not locate the plant they fell off of. The pods were round, light green and looked like large round grapes. They were light weight and hollow feeling, but inside was a seed starting to grow that was attached to the interior of the pod shell by spidery filaments. I looked through a tree and shrub identification book but could not find them.

ANSWER:

Your description sounds like leaf galls caused by the trees reaction to eggs deposited by an insect.  Here is a general description of plant galls from Henderson State University in Arkansas.  In fact, it sounds like a lot like oak-apple gall or maple bladder gall.  Here are more photos and information about oak-apple galls from the Urban Pantheist and more from Fairfax County Public Schools in Virginia.  The galls, by the way, are generally not detrimental to the tree that produces them.

 

More Pests Questions

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

Problems with Monterrey Oak in Austin
March 26, 2013 - We had a local tree service plant two Monterrey Oak trees on 4/2/2012. At the time we noticed that woodpeckers had had a field day on the trunk bark of both trees with the most damage being on the lar...
view the full question and answer

Dandelions in bluebonnets in Bastrop TX
May 31, 2012 - I have a 20'x60' front yard area where I planted bluebonnets. It has become horrifically inundated with dandelions. How do I eradicate the dandelions while preserving the bluebonnets ? Thanks ...
view the full question and answer

Yellow jackets on non-native crape myrtles
September 25, 2008 - Hey Mr. Smarty Plants I have only 1 question. I have several Crape Myrtles that have numerous amounts (alarming) of yellow jacket bees on them. who what where when why etc? Should I be concerned? tha...
view the full question and answer

Snails in my flower beds
May 06, 2009 - I live in Kingwood, Texas (north of Houston). I have been inundated with snails in my flower beds in my front & backyard. I really didn't want to use a pesticide, but they were eating all of my flo...
view the full question and answer

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