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

Shade tree for Southern California
November 14, 2013 - I had to cut down my huge ficus tree for several reasons, however it provided lots of shade, that we miss. Can you help me find a good shade tree with non-invasive roots that is good for growing and p...
view the full question and answer

Can trees survive if trunks are buried under 3-5 ft of soil?
January 27, 2012 - We have two cedar elms and a mesquite that I protected from backfill as our Texas Hill Country lot was leveled in preparation for building a house. The bulkheads are now holding back 3' to 5' of ma...
view the full question and answer

Cold tolerance of Anacacho Orchid Tree (Bauhinia lunarioides)
January 13, 2010 - I live in Austin, and I'm considering planting an Anacacho Orchid Tree. How cold tolerant is it? Would the tree have been damaged in the recent 18 degree temperatures we experienced?
view the full question and answer

Oak trees losing leaves in Longview, Texas
August 18, 2009 - One of my oak trees is losing its leaves (it is the first week in August). They are turning brown and falling at an alarming rate. The ground under this tree is covered, but my other trees seem unaffe...
view the full question and answer

Is it safe to burn Cedar in a fireplace?
December 04, 2014 - Is it safe to burn Cedar in our fireplace? I'm trying to thin out the population of Ashe Junipers on my property in Spicewood Tx. to give the young Live Oaks a chance to compete for sunlight and w...
view the full question and answer

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