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

Wednesday - December 24, 2008

From: Richland, IN
Region: Midwest
Topic: Trees
Title: Underdeveloped pecan kernels with brown spots
Answered by: Nan Hampton

QUESTION:

our pecan tree was loaded this year. it is a soft shell . some of the pecan meats are not fully developed and have small dark spots on them. could this be a blyte of somekind and if so what can we do to correct this. we live in Southern Indiana

ANSWER:

Your description sounds like damage from sucking insects, the stink bugs (Family Pentatomidae) and leaffooted bugs (Family Coreidae).  Here is information from Louisiana State University and from University of Florida Extension Service about these insect pests that feed on the pecans and cause black (black pit) or brown (kernel spot) spots in the pecan meats. I suggest you contact your county office of the Purdue University Cooperative Extension Service for advice on current methods for controlling these insects.

Here is more information about diseases of Carya illinoinensis (pecan) from the Alabama Pecan Growers Association, Pecan Production Guidelines for Small Orchards and Home Yards from Arizona Cooperative Extension and a Field Key to Larvae in Pecans from Oklahoma Cooperative Extension Service.

 

More Trees Questions

Looking for non-native Chinese Pistache tree
April 23, 2015 - Where in the Austin area would be a good place to find a nice sized Chinese Pistache to plant in my yard?
view the full question and answer

Permit to transport trees in Ivanhoe TX
December 02, 2010 - Do you have to have a special permit to transport trees on a semi truck and trailer in Texas? They are Texas grown trees, just going to a different location inside the state.
view the full question and answer

Should hole in escarpment live oak be filled in Austin?
May 24, 2009 - Regarding one of my mature escarpment live oaks: should an old hole (about 8" across) in the trunk (caused by the improper cutting of a branch) be filled? A tree service technician advised me that he...
view the full question and answer

Non-native peanutbutter tree suckering in Oregon City OR
August 02, 2011 - I have a beautiful 'peanutbutter tree' in my yard. I have noted that there are plantlets coming up that appear to be attached to the main root(s) of the tree. I have been breaking them off as I don...
view the full question and answer

Taproot tree to replace willows by pool
June 23, 2008 - Installing Pool with bomanite decking all around it. We're in process of cutting down 18 year old Weeping Willow due to root invasiveness and small messy leaves. Can you recommend a good shade tree w...
view the full question and answer

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