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Re: Will glyphosate kill trees also?

Glyphosate is a contact herbicide (it is systemic and translocates to the
root system to kill the plant), that is, it needs to be on actively growing
vegetation to kill the plant.  In other words it will not kill the trees
where you spray the grass as long as you don't spray it on the leaves.

So the answer is yes you can spray the grass and not hurt the trees.

We do know individuals who use it on cut stumps and have found it to be
effect to stop resprouting.


Carl Kurtz

> From: Gordon  Fuqua <gordonfuqua@worldnet.att.net>
> Reply-To: prairie@hort.net
> Date: Tue, 01 Apr 2003 10:06:25 -0600
> To: <prairie@hort.net>
> Subject: Will glyphosate kill trees also?
> 
> My wife and I have purchased a small (1/3 acre) home site in central
> Illinois (Mattoon).  It has a few trees (Silver Maple, Osage Orange, Common
> Hackberry, Black Cherry and Butternut, most in an old fencerow) with lawn
> grasses throughout.  We won't be building for a few years but want to get a
> head start on changing from lawn grasses to all native shrubs and grasses.
> 
> Questions:  First, will the glyphosate I am currently planning to use to
> kill the lawn grasses under and around the trees (in preparation for native
> plantings) damage or kill the trees also?
> Second, I am assuming the glyphosate will be effective any time
> after the grass greens up.  How long after appllication does it take for an
> effective kill.
> 
> Thanks for your help with this.
> 
> Gordon Fuqua
> 
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