poisen ivy--scotts roundup poisen ivy
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poisen ivy--scotts roundup poisen ivy ilaboo 05-27-2008
Posted by ilaboo on May 27, 2008, 7:29 pm
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 forget it--used it on rather large infestations--only areas it did anything
to was the leaves that it was sprayed on --wilted after 10 days so
far--nothing appears systemic--no major temprature changes during the last
10 days--i would not reccomend it--at least for poison ivy in the bronx



Posted by on May 28, 2008, 8:52 am
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> forget it--used it on rather large infestations--only areas it did anythin=
g
> to was the leaves that it was sprayed on --wilted after 10 days so
> far--nothing appears systemic--no major temprature changes during the last=

> 10 days--i would not reccomend it--at least for poison ivy in the bronx

At what concentration did you apply it? I've used Roundup
successfully on Poison Ivy, but you have to apply it at about 7%
concentration, as opposed to 1 or 2% which will work on broadleaf
weeds. If you bought one of the pre-mixed hand sprayer bottles at
low concentration, that's the problem. It's also much cheaper to buy
in concentrated form and mix your own.

On the other hand, if it's poison ivy and similar harder to kill
plants that are the main target, one of the products specific for
brush is what I would use.

Posted by Mac Cool on May 29, 2008, 6:47 pm
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ilaboo:

> forget it--used it on rather large infestations--only areas it did
> anything to was the leaves that it was sprayed on --wilted after 10
> days so far

According to the directions, that is what it is supposed to do. It's a
contact killer.

Posted by on June 2, 2008, 12:27 pm
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        I believe you'll find Poison Ivy more susceptible to herbicide when first
leafing out in springtime and when storing nutrients to its root system in
autumn. Meantime you can spend exasperating time spraying and re-spraying
during other periods with no satidfying results in the long run.
        The reasoning behind this approach is that the roots are expending stored
        energy to sprout leaves in Spring so the leaves will in turn feed the
        roots; reducing the leaf structure interrupts the feeding cycle, so to
        speak. Similarly, the leaves in Autumn are more likely to transmit the
        herbicide to the root system before closing shop for the season, and the
        herbicide has all winter to do its work on the root system.
        Timing is important for the best results. I've used RoundUp Ultra (mixing
        from concentrate) for about fifteen or twenty years or longer and it's very
        effective when used properly.

Posted by ilaboo on June 5, 2008, 7:52 pm
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tried--i really forgot name--something like banvil a 2-4 d product for
poisen ivy--as to be expected--tips curled in one day, leaves drooping but
after 1 week nada--i rally am not impressed sofar with poisen ivy
herbicides--i was under the impression that the chemical would be absorbed
thru the leaves and traqnsported to roots etc and therby afect the entire
plant--i was wrong--both seem to be a contact herbicide with no systemic
effict i can see.

hth

peter

> I believe you'll find Poison Ivy more susceptible to herbicide when first
> leafing out in springtime and when storing nutrients to its root system in
> autumn. Meantime you can spend exasperating time spraying and re-spraying
> during other periods with no satidfying results in the long run.
> The reasoning behind this approach is that the roots are expending stored
> energy to sprout leaves in Spring so the leaves will in turn feed the
> roots; reducing the leaf structure interrupts the feeding cycle, so to
> speak. Similarly, the leaves in Autumn are more likely to transmit the
> herbicide to the root system before closing shop for the season, and the
> herbicide has all winter to do its work on the root system.
> Timing is important for the best results. I've used RoundUp Ultra (mixing
> from concentrate) for about fifteen or twenty years or longer and it's
> very
> effective when used properly.



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