En Español

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

Saturday - August 27, 2011

From: Bellwood, IL
Region: Midwest
Topic: Pests, Trees
Title: Bugs on Arizona Cypress in Bellwood IL
Answered by: Barbara Medford

QUESTION:

I live in Illinois and have an Arizona Cypress that looks like it is dying but I notice today it has bugs inside its cone. Can you tell me why and what can I do?

ANSWER:

Cupressus arizonica (Arizona cypress) is native to North America; from our webpage on this tree:

"USA: AZ , CA , NM , NV , TX , UT
Native Distribution: W. TX to extreme s. NV, s. AZ & n. Mex.
Native Habitat: Hot, dry canyons & stream banks from 3000 to 7000 ft."

From the USDA Natural Resources Conservation Service on Cupressus arizonica:

"It is found naturally on dry, sterile, rocky mountain slopes and canyon walls, but does very well when planted on better soils or when irrigated. It requires a minimum of 10 to 12 inches of water annually. It is not recommended for soils with a high water table."

Doesn't sound much like extreme northeastern Illinois in USDA Hardiness Zone 4b, with average annual minimum temperatures of -20 to -25 deg F, does it? How long have you had that tree and did you buy it locally? Just because a plant is sold locally does not mean it will thrive locally. On top of everything else, you are very close to Lake Michigan and we are guessing you have a high water table, not recommended for this tree. This sort of situation is why the Lady Bird Johnson Wildflower Center is dedicated to the growth, propagation and protection of plants native not only to North America but to the area in which the plants are being grown.

Frankly, we don't think it possible for this tree to survive in your environment, and the bugs are probably just taking advantage of a weakened, dying tree. Before you purchase plants, we suggest you go to our Native Plant Database, do a Combination Search for Illinois, designating type of plant (tree, shrub,etc.) under General Appearance. You can also specify Light Requirements where the plant will go, Soil Moisture, even projected height as you search. You can go to our National Suppliers Directory, type your town and state name in the "Enter Search Location" box and you will get a list of native plant nurseries, seed companies and landscape professionals in your general area. All have contact information so you can find out if they have a plant you are looking for before you go shopping.

 

From the Image Gallery


Arizona cypress
Hesperocyparis arizonica

Arizona cypress
Hesperocyparis arizonica

Arizona cypress
Hesperocyparis arizonica

More Pests Questions

Petals not developing on blackeyed susans from Nashville TN
July 05, 2011 - I have an established "patch" of black eyes susans. This year, the leaves are beautiful, the centers black..but the petals are practically non existent. They didn't seem to develop correctly. Any...
view the full question and answer

Unknown pest of Texas Mountain Laurel from Round Rock TX
May 24, 2012 - I have a Texas Mountain Laurel that is being denuded from the top down by something unseen. It's not the Genista moth larvae, as there are no worms and no webbing visible. The only clue that it might...
view the full question and answer

Control of ball moss in oak trees
March 23, 2007 - I live in San Marcos, Texas and I have a two acre lot with lots of oak trees. Most of these trees have so much ballmoss attached to them that the leaves and branches are not visible anymore. Is ther...
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

Leaf Galls on Live Oak
March 20, 2012 - Hi - I have a live oak tree that always seems to have thinner foliage than our other two. Upon closer examination today I found small brown balls all over the mature leaves. The balls look and feel ve...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center