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

Saturday - July 26, 2008

From: Kaysville, UT
Region: Rocky Mountain
Topic: Non-Natives, Diseases and Disorders, Pests, Trees
Title: Loss of leaves from globe willows in Utah
Answered by: Barbara Medford

QUESTION:

I have four globe willows that have been in my back yard for the past 6 years. For the past month they have been losing their leaves from the bottom up. We had aphids in some of our other trees and were sprayed as well as the globe willows, however, the willows are still losing their leaves. Any suggestions as to why this is happening?

ANSWER:

Salix matsudana, globe willow, is a native of eastern Asia. Willows generally are fairly weak, short-lived trees, susceptible to many insects and diseases, as well as dropping a lot of litter. The globe willow is often infected with slime flux, a bacterial disease that is soil-borne. They are frequently found in the Rocky Mountain area, in warm valleys, so while they are not native to North America, they are at least well adapted to the area in which you live.

This Colorado State University Extension The Globe Willow has excellent information on the care and problems facing this tree. Be sure and follow the links from the home page to see "Introduction," "Diseases and Insects," and "Aphids." In the last one, on aphids, follow the link to images of the giant willow aphid. If we saw something that big coming for us, we would probably drop some leaves, too. On that same webpage, there is some excellent advice: Always check with the Extension office in your county or state for specifics on pesticide selections and use. The website for your Davis County Extension office is apparently still under construction, but you can contact them at 28 E. South St., Farmington, UT 84025, phone 801-451-3412.

 

 

More Trees Questions

Suggestions for native perennials in Staten Island, NY
April 03, 2008 - My back yard garden has a good base of evergreen shrubs and perennials all doing well in clayish soil and I am ready now to add color and texture in an area with partial sun. Can you suggest hardy...
view the full question and answer

Can Carolina jessamine be grown in Syracuse NY?
May 09, 2010 - Hi--Can Carolina Jessamine be grown in Syracuse, New York?
view the full question and answer

Fruit crops to grow in Tennessee mountains
May 27, 2013 - My property has a lot of rock formations throughout it and has hundreds of cedars where it is not pasture. I am wanting to grow fruit trees and berry bushes but don't know what can grow in this e...
view the full question and answer

Screening Plants for Cape Cod
June 17, 2014 - I need to plant some fairly high growing leafy plants/bushes/trees for privacy and as a sound barrier in (the remains of) a pine forest in Cape Cod, MA. The pines grow tall and skinny so that we can s...
view the full question and answer

Tree that looks like cedar elm but with smooth bark
August 09, 2014 - What tree looks like a cedar elm, but has smooth bark?
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
© 2014 Lady Bird Johnson Wildflower Center