[MAIPC] Ailanthus and Basalbark Treatment

[Richard Gardner]

I prefer Drill and Fill instead because it uses less chemical, safer tools and less spillage.

With a cordless drill, drill a 3/8" hole 1" deep every 2" of girth at comfortable working height.  Spray in 50.2% glyphosate (purple cap Roundup) with a spray bottle.  Within 2 weeks the tree will be defoliating.  Check the tree after 6 weeks for green bark by scraping between the holes with a knife to make sure the tree is dead.  If not check it again in a few weeks.  I know that they are dead within 6 months, probably sooner.

Once you are sure the tree is dead, cut it down or it may break at the drill holes in a heavy wind.

One sure way of knowing the tree is dead or near dead is to look for white tubes of frass from holes in the bark made by the ambrosia beetle Euwallacea validus.

                                                                                                      Richard Gardner


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On Wed, 8/12/15, Patricia Greenberg <pgreenberg at reston.org> wrote:

 Subject: [MAIPC] Ailanthus and Basalbark Treatment
 To: "MAIPC" <maipc at lists.maipc.org>
 Date: Wednesday, August 12, 2015, 10:30 AM
 
 
 
  
  
 
 
 
 
 Hi Everyone, 
    
 Tree of Heaven is a big
 problem in Reston. Due to the make-up of our open space, in
 many areas surrounding recreational facilities and homeowner
 property, we cannot leave dead looking standing trees for
 months at a time. Residents complain
  and it reduces the “curb appeal” that the
 Association is trying to improve. 
  
    
 I would like your input on
 this matter. When applying Triclopyr in a basal bark
 treatment, how long does the tree need to stay before we can
 cut it down? (2 months? 6 months?)
  
    
 In certain cases, I think
 we’ll be forced to do a cut stump treatment instead.
 We typically use glyphosate at 20% on the stump. How
 problematic is this method with Ailanthus? I know it can be
 effective in killing the large tree but then
  we have runners to manage.  
    
 Thanks for sharing your
 thoughts, 
 Patricia  
    
    
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 Patricia Pearl
 Greenberg 
 Environmental Resource
 Supervisor 
 Reston
 Association 
 12250 Sunset Hils
 Rd 
 Reston, VA
 20190 
 (703) 435-6552 
 pgreenberg at reston.org
 
 www.reston.org 
    
  
    
 RA Vision:
 Leading the model
 community where all can live, work, play, and get
 involved. 
 RA
 Mission: To preserve and
 enhance the Reston Community through outstanding leadership,
  service, and stewardship of our resources. 
 RA Core
 Values:
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