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?
--
John McGaw
[Knoxville, TN, USA]
http://johnmcgaw.com