On Sat, 19 Jun 2004 15:54:16 -0400, "John McGaw"
wrote:

I had always thought that one weed killer was the same as another but had
always used Roundup since it was so commonly available. Well, a few weeks
back I went to my local Ace Hardware for some bolts and remembered that my
Roundup was about gone so I grabbed some spray from a prominent display.
Something called "Ortho Season Long Grass & Weed Killer". A big mistake
that, since this stuff not only doesn't kill weeds it doesn't even seem to
seriously inconvenience them. I've sprayed a wide variety of plants from
oxalis to poison ivy to brush honesuckle and dozens of unidentified others.
Most of them twice at a one-week interval. Nothing. Well, not exactly
nothing since one or two leaves on the brush honeysuckle turned black and
maybe an oxalis or two croaked (but there are so many of them it is hard to
tell).

Has anybody else experience this sort of chemical failure? Is there anything
besides Roundup which works?

I keep returning to RoundUp and prefer to buy the concentrate. Mixing
it strong works best for me. It is not practical using it in the
lawn, unless you can find a way to paint it on the leaves or shield
the spray from the surrounding grass. For broadleaf in the lawn I
alternate between Weed-B-Gone and Spectricide. However, the period
for effectively treating weeds with these products is almost over as
directed on the label, as we are having high temps in the 90's.