ground cover versus Roundup - Page 4

 



Suit yourself.  Have a nice day.

 

On 2/18/2010 6:43 PM, JRStern wrote:

After many attempts at eradicating it I've determined that the English Ivy
(which is attempting to swallow the wooded area in front of my house and
acting like kudzu) is pretty much immune to Roundup, even when mixed to the
"brush killer" strength. The waxy cuticle on the leaves seems to prevent
them from taking up the glyphosate and even adding a wetting agent to the
spray doesn't seem to make it work much better.

 



Yes, Roundup is known to be relatively weak on vines (such as wild
morningglories).  One thing you can do is add a couple ounces of
ammonium sulfate (if it's available to you) to the water & dissolve
before adding in the Roundup.  The active ingredient in Roundup
(glyphosate) is very polar and will attach to minerals such as calcium
in the water, 'tying it up' and not letting it be available to enter
the plant cells.  If added first, ammonium sulfate will attach to the
ions in the water and leave the glyphosate free to do its job.

 

On 2/19/2010 10:34 AM, John McGaw wrote:

I've had luck mowing (string trimmer works quick) the ivy first, then
applying the roundup to the new growth.  The new leaves seem to be less
"waxy", and are easier to attack.

Of course, this is a process I have to repeat 3 or 4 times before the
ivy will actually give up.

 

david  wrote:

I've found that Roundup works much better on a hot sunny day.