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

Monday - June 16, 2008

From: East Northport, NY
Region: Northeast
Topic: Diseases and Disorders
Title: Peach tree problems in Long Island, NY
Answered by: Barbara Medford

QUESTION:

This year my peachtree is bearing fruit for the first time. I live in Long Island NY. I notice a sap on the bark near the soil. Also some leaves are getting disease looking and some peaches are looking marked up. Home Depot sold me a spray for a fungus. Also they told me to scrape the sap off the bottom of the bark. What do you suggest? Thank you, Francine

ANSWER:

Peaches, plums, cherries and almonds are all "stone fruits" in the genus Prunus, which means they are all susceptible to many of the same diseases and pests. Unfortunately, most of the research materials we could find were for commercial orchard management, rather than the back yard peach tree. Without knowing more about the symptoms your tree has been showing, we can't say what is causing it and what controls might be useful. Some of the disease problems are really scary, and control is listed as "destroying all the trees in the neighborhood of the affected tree." Most members of the Prunus genus have been so extensively hybridized for cultivation that just diagnosing a problem is difficult. We have listed several websites below that deal with various problems with the peach tree. We suggest you read through them and see if any of the symptoms match the problems your tree is having. We also recommend that you go to the website for the Agriculture Program of the Cornell University Cooperative Extension of Suffolk County. There are several links to pest and disease management, plus you can get telephone numbers and website addresses for the office on the home page. Local extension offices are always in a better position to advise on treatments for problems gardeners and growers are having.

Clemson University Education Peach Disease Management - this is mostly about problems in the U.S. southeast, but has some good points that should apply to all peach trees.

Gardener's Supply Co. Peach Tree Borer - these symptoms, sap at the base of the tree, sound very much like what you described.

Govt. of British Columbia Guide to Fruit Tree Sprays for the Home Garden

AllExperts Peach Tree + Pest = Problem

 

More Diseases and Disorders Questions

Overwatering and fertilization of whiteleaf manzanita
July 27, 2007 - Hi, I have an Arctostaphylos Dr. Hurd, southern California coast, several years old, 10 feet, that has a few large branches with yellowing and spotted leaves... also dropping many. causes? remedy? sh...
view the full question and answer

Problems with Eastern hemlock in Greenville SC
July 02, 2009 - Dear Mr. Smarty Plants, I have a beautiful, young, 5 and a half foot tall Eastern Hemlock. I purchased and planted it two years ago in the fall. It has been doing very well all this spring. And ne...
view the full question and answer

Why is my recently planted Esperanza doing poorly in Texas City, TX?
May 28, 2010 - I have an Esperanza I planted about 2 months ago. It has been doing well, except today all but one stem of the plant is wilting and the leaves are rolling. I see no bugs on the plant. Any idea what...
view the full question and answer

Non-native invasive carrot wood tree losing leaves in Alpine CA
April 22, 2014 - My carrot wood tree is losing all of its leaves. The tree is about 15foot high & 13 years old. Could it be gophers? The tree was trimmed 1 year ago.
view the full question and answer

Non-native red-tip photinias dying in San Antonio
August 20, 2009 - A 17 year old Red tip Photinia in a hedge shows signs of dying. The main stalks are quite large and offshoots from two of the stalks have brittle, drooping leaves. The center of the plant looks norm...
view the full question and answer

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