En EspaŅol

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
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

Tuesday - June 09, 2009

From: West Haven, CT
Region: Northeast
Topic: Diseases and Disorders
Title: Diseased cypress trees in Connecticut
Answered by: Nan Hampton

QUESTION:

Cypress trees in Connecticut browning on interior. Tips of longer limbs completely brown, single limbs dying one at a time, sap oozing out of mainstem underneath dying limb. I do not see any canker and do not believe it is cedar apple rust. Should I spray fungicide? What would make sap ooze from stem and kill individual limbs one at a time? Need help fast.

ANSWER:

You don't say what cypress tree you have, but Mr. Smarty Plants suspects that it is a Leyland cypress (Cupressocyparis leylandii (syn. Callitropsis x leylandii).  It is a hybrid of two native trees that would have never met in nature—Cupressus macrocarpa (Monterey cypress), native to California, and Cupressus nootkatensis (Alaska cedar), native to Alaska.  I don't think we can diagnose your trees disease from here, although one of the cankers (Seridium sp. or Botryospaeria dothidea) sounds likely.  Here is information on the cankers and their treatment from North Carolina State University and from Alabama Cooperative Extension System. Your best bet, however, is to contact the Connecticut Cooperative Extension System for information on diseases of the cypress in Connecticut and possible treatment measures.  On their home page click on "Find an Expert" and you can find the contact information for agents who specialize in trees in your area.

 

 

More Diseases and Disorders Questions

Time for trimming oaks from Boerne TX
July 03, 2012 - I want to trim a native red oak but am scared to touch it because I dont want to lose it. It is the primary source of shade in our back yard. Also I want to trim the live oaks and am surrounded with O...
view the full question and answer

Powdery growth in hydrangea in Philadelphia
June 20, 2010 - My hydrangea plants have a weird growth on their leaves that looks like white rice. It looks like it would be powdery if brushed, but I don't want to touch it for fear that it some type of mold. Any...
view the full question and answer

What's causing holes in trunk of white oak tree in SouthBend IN?
June 10, 2013 - We have a huge White Oak in our backyard that is approx. 130 years old. This evening I became aware that there are several small holes around the trunk that appear to be oozing a dark sappy liquid. ...
view the full question and answer

Texas Ash secreting sap in Lockhart, TX
July 05, 2012 - I have what I believe is a Texas Ash in my front yard that is secreting a sap with what looks like some wounds on it with some white stuff and with black and red looking ants as well as it has a lot o...
view the full question and answer

Problems with volunteer tree in Joshua TX
February 15, 2012 - I have a 'volunteer' tree which has been in our back yard for about 15 years. It has had the usual traumas, ie. lots of snow, ice, etc. but after last years drought, its bark is coming off and sev...
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.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2015 Lady Bird Johnson Wildflower Center