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

Sunday - May 19, 2013

From: Naco, AZ
Region: Southwest
Topic: Pests, Trees
Title: Problems with Arizona Ash from Naco AZ
Answered by: Barbara Medford

QUESTION:

Hi Mr. Smarty.. Live in southeast corner of Az. My Az. Ash is diseased. Just noticed leaves are curled, (still green) and when I open the leaf it has a zillion little white, what look like mites or aphids..or specs of coarse ground salt. My trees are four years old and luckily the other one looks OK, so far. Help me out. What kind of spray or powder would you recommend? Thank you very much,

ANSWER:

This is most likely leaf-curl aphids infesting your Fraxinus velutina (Arizona ash). Here is a YouTube presentation on Ash leaf-curl aphids. Also,an article from Iowa State University Extension on Ash leaf-curl aphids. The important thing is to keep leaf litter picked up and properly disposed of in order to limit the spread of the beasties to your other ash trees.

 

From the Image Gallery


Arizona ash
Fraxinus velutina

More Pests Questions

Horse ate bark of cedar elm from Liberty Hill, TX
February 20, 2013 - I have three acres with a rental. Planted a Cedar Elm near the porch. My ex-renters allowed their horse to graze around the house. It ate the bark off of the tree. How can I save this tree?
view the full question and answer

Are non-native hostas causing fly invasion from Eastpointe MI
July 14, 2013 - I live in Michigan with a small backyard. I have 5 large hostas with the purple flower blooms which are located by my patio. I was wondering if they can be causing my large population of unwanted flie...
view the full question and answer

Will Canada geese eat Asclepias tuberosa from Cape May Court, NJ
May 20, 2014 - Will Canada geese eat my butterfly milkweed (Asclepias tuberosa)? I know this plant is deer resistant. I really want to plant some on sandy bank near pond in my back yard, but I fear the geese will ...
view the full question and answer

Problems with iguanas in Ft. Lauderdale FL
August 04, 2009 - I live on the intracoastal waterway near Ft. Lauderdale,FL and I am having problems with iguana. They will not eat lantana or buttercups; however is there a poisonous ground cover, preferable with fl...
view the full question and answer

What is hollowing out my rosebuds in Austin, TX?
April 28, 2012 - I recently noticed some of my rose buds had been hollowed out from the inside. I have seen no evidence of insect though. What do you think it is and how can I treat the problem?
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