I picked up a container of Ortho 'Weed B Gon' to control some weeds around
First I tried it out on a few isolated smaller ones to see how it worked. I
squirted them a few days ago. They still seem to be healthy though a couple
have a few shriveled leaves. I had expected them to be totally dead in a
day or so.
What am I doing wrong? Any guesses? Maybe it takes longer to affect them?
You have to really soak them?
There is little info on the bottle and that is mostly warnings.
It does take several days. But I don't know what variety was used. If
something like Spot Shot, it isn't very effective. Yes, it will kill the
weeds that you see but in the meantime they may have reseeded. Spot killing
like this gives you no better results than if you were to dig up and dispose
of every weed that you see.
I know. I tried both of these methods when I lived in military housing. We
had a huge yard with woods alongside and the crappiest grass you've ever
seen. This was on Cape Cod so the types of grass grown there are not what I
was familiar with coming from Washington state. Whatever the grass was
nearest the house, would grow three feet high in a week! Normally I would
use Weed and Feed but I was afraid if I did that, I'd have huge bare spots.
Keep in mind that I didn't own this yard nor did I intend to stay there as
it was military housing. So I felt less need to keep it up like I would
with a rental or a house that I own.
I own this house. The yard is pretty small and I have a gardener. He uses
weed and feed and I never have any weeds whatever. I always worry because
the guy next door just hacks his weed/yard down at best, 2/3 times a year.
Nobody lives in that house. They are doing a remodel but it has been going
on for years with little being accomplished. We still never get weeds in
the lawn but we will get a few in the flower beds.
It's mostly 2,4-D w/ a little 2,4-5T iirc...depends on what your weeds
Also, what's the temperature and soil moisture level? Herbicides work
much better if the target is growing actively, not stressed.
Also, of course, depends on the concentration -- was this pre-mixed or
did you mix a concentrate? You can also help a little if the leaves are
slightly moist first or use a surfactant to get better absorption (a
teaspoon or so of dishwashing liquid detergent/quart added to the bottle
I use that, also. Takes 3-4 days for the weed to show distress and a
couple of weeks to totally keel over. Hot supper weather makes it happen
a bit quicker.
Weeds with a long tap root, such as the ones in my yard that pretend to
be clover, are not killed by weed-b-gone.
Intended to note that 2,4-D works basically by disturbing plant growth
cycle such that it essentially "grows itself to death" -- iow, it
doesn't just turn brown and die, the curly leaves are the symptom it's
working...of course, again depending on the actual weed and the
conditions and all that, occasionally stuff will wilt and then
eventually recover, but most common broadleaf yard stuff will succumb.
I've used WBG, both versions....regular and the one for St. Augustine.
I think it works miracles. In my present lawn, I used it last year,
mainly for dandelions, and there are very few of them this year.
Unless you are down south, it might be too cold yet for weeds to take up
the WBG. Weeds (per package instr.) need to be actively growing and no
rain for a couple of days. It should not be used during hot, dry spells
because it can stress the lawn grass. When I used it on southern lawn
(St. A. grass), I would fertilize about a week before and water a day or
If you mixed it, any chance you made it too dilute? I use hose-end
sprayer for appl. If weed have real waxy leaves, it might be better to
treat them individually with Roundup and a paint brush...tedious, but it
After application all over the first time, all I needed to do was occ.
spot treatment. It takes at least 2 or 3 years (it can take a lot
longer) for already present weed seed to germinate, so you won't have a
permanent weed-free lawn from one appl. Proper watering and mowing
makes a huge difference on weed growth, and cutting too short is
encouraging weeds, especially in hot, dry weather.
When applying a broadleaf weedkiller, for best results:
1. Don't apply immediately after the lawn has been mowed, wait a few
days. The more leaf area on the weeds, the more weedkiller they will
absorb. For the same reason, wait a few days after spraying before
2. The lawn should be moist/recently watered, so the weeds are
actively growing. If the soil is very dry, the weeds are barely
growing, and thus won't absorb much weedkiller.
3. Temps should be between mid-60s F. and low 80s F. The colder it is,
the slower the plants are growing, and the slower they will absorb the
weedkiller. Too slow, it'll either do nothing, or it will stunt the
weed but not kill it. The hotter it is, the more likely the weedkiller
will also injure the grass.
4. Don't apply too strong or too weak of a mixture. Too strong, it'll
injure the lawn. Too weak, it'll stunt the weeds' growth for awhile,
but not kill them. Read the label to find the recommended rate.
5. Ideally, no rain for 24-48 hours after applying the weedkiller. You
don't want it washed off before the weeds absorb it.
6. For stubborn weeds such as creeping charlie, a second application
7-10 days after the initial application will improve the rate of kill.
Finally, the best time of the year in much of the US to apply
broadleaf weedkillers is late summer/early autumn. The ground is at
its warmest, so the weeds are actively growing. It's usually not as
unpredictably rainy as it is in the spring, so it's easier to find an
optimum weather window to apply it. Also, seeds from the spring
dandelion crop have already germinated and formed small plants that
will winter over and bloom the following spring. Spray in later
summer/early fall, and there will be far fewer perennial weeds to deal
with the following spring.
I mix a solution of Roundup in a disposable container, then I pull on
a rubber glove, and cover it with a cheap cotton glove. I then dip the
gloved hand into the Roundup solution and just grasp/stroke the weeds
I want to treat. It goes very fast, and it's a very precise way to
apply the solution. Of course, if the weeds are very short, this is
hard on your knees and back, but it works especially well when you
want to get weeds located close to desirable plants, such as in a
garden or under shrubbery.
I tried repeatedly to kill some poision ivy, roundup, and poision ivy killer just made them shrivle, then they would come back stronger than ever.
at the suggestion of someone here mix roundup 50 / 50 with poision ivy killer....
this combo kills weeds and poisdion ivy fast, although doing so is illegal....
I had a lot of asparagus fern growing in hedges when I lived in Florida;
IMO, the stuff should be banned, along with loosestrife. I could not
possibly dig the stuff out, as it has masses of tubers. I cut it down
as much as I could, waited til it had a couple of inches of new growth,
then sprayed it with Roundup. I repeated that once and it was gone! It
is nasty stuff, as it bears berries that birds like to spread around.
Boston Ivy is another nasty when it gets loose; my mom put some in her
yard and it killed a good sized oak tree.
They _can_ but would be highly unlikely in lawn to be dormant anything
at all like that long.
_Most_ seeds if dry and not heated too hot will survive quite long
periods of time so that's not terribly uncommon.
But in a lawn there's almost certainly going to be enough water that
they'll germinate with a few years at the outside.
I don't know. It seems unlikely. Farmers around here were burning
fields for awhile trying to get rid of shattercane. I don't remember if
it really helped all that much. Fortunately, GMO came along so crops
could be sprayed to kill it off. So now some farmers are back to
planting grain sorghum.
Be careful when reading the warnings. Reading in dim light may be
harmful to your eyes.
I used that product, with crabgrass killer, a couple years ago and was
quite happy with the results. It takes longer than they say.
Spectracide had made me happy too, years earlier. I liked Ortho
because the sprayer pointed down, but with spectracide and the most
natural way to hold it, it pointed horizontal, and when the kinks in the
hose took control of the hose, I killed part of the branch of my tulip
tree**** and maybe some other stuff ****(Yes a tulip poplar, but in
Indiana where it's the state tree, and we had 4**, it's just called a
I was late this year because it's been cold, and I used the second half
of the bottle yesterday, hoping it would kill dandelions that had
already bloomed. They didn't look different 24 hours later. I'll
Planned to spray on more today, went to the store and the sold Ortho
weed-b-gon in 3 forms. The 24 oz. garden house bottle (which is what I
used) , the stuff you mix yourself and use your own spayer (called
Concentrate), and a gallon plastic bottle with a hand squeeze sprayer.
What caught my eye is that the garden hose liquid was not called
concentrate, and was the same price as the gallon bottle (about 11
dollars) but only had 32 oz. 1/4 of a gallon. So I called their 800
number (Open to 8AM to 10PM ET M-F, to 6 (or 5?) Sat and Sun) and
twice the girl told me that the garden hose bottle is not concentrated,
it's the same as the gallon stuff. Which means not counting the value
of the spray container, it's 4 times the price.
You've used part of what you bought already, but you might save the
empty bottle, take out the two screws and see if the top unscrews, then
buy a gallon next year. I wish I'd saved my empty bottle but I do
have another brand's empty and I think I'll use that, but tomorrow rain
is expected. It will have to be the weekend.
I have to reread the labels. IIRC both this and Spectracide** say they
kill creeping charlie I have a lot of that, and it annoys me. **But
at least one product did NOT list creeping charlie.
**I wasn't going to tell this story but when we moved into the house in
Indianapolis, one tulip tree was only 4 feet tall, and only the trunk,
broken off at an angle from the top (4 feet) to 2 or 3 feet high. (The
other 3 trees were 10 or 20 feet tall.)
The broken one stayed that way for 4 or 5 years, not a sign of life
except that it didn't rot, and then started growing again, quite fast.
I just followed the instructions, although I guess I did give extra
sparying to big ugly weeds. . It's hard to judge or to calculate how
big my yard is (It's 5-sided) but somewhere along the line I figured
2500 feet, a half bottle, and I sprayed moderately so I did the yard in
a half bottle. Maybe that's what I liked about Ortho, that you can
tell how much you've used.
Some of the big ugly weeds were wilting today, 24 hours after spraying.
A competitor claims it will be dying in 6 hours, but they probably spray
it on watercress or something delicate. Anyhow, I'm not in that much
of a hurry.
For the powders or solid products, there's a mnemoic, EMIL.
Easter, bag I
Memorial day, bag II
Independance day, bag III
Labor day bag IV.
But bag 1 stuff just lies there until it's warm enough to work
And the schedule couldn't be correct for all latitudes.
The cherry trees reached their height iin DC two weeks ago last Tuesday,
and mind just started blooming two days ago (Tuesday) Only 45 miles
north, and a couple hundred feet more elevation.
For newbies, that's becaue Round-up kills or at least might kill
anything it touches. Or anything that grows in the dirt it touches, I
Yes it does! I used to manage a garden shop and a couple of my idiot
employees thought it would be funny to spray some of the plants we sold with
the stuff. I didn't know that they did this. Customers began coming in for
refunds right and left because the plants they bought were dying. I then
heard these two buffoons laughing about this over in the corner. I was not
happy! I was also not happy when I discovered that my husband had put it in
all of our flower beds. Daughter and I had just spent a few hundred dollars
planting flowers out there. :( I have given up on real flowers with him
around. Although we have a gardener now, any time he sees something
threatening to flower, he has the gardener remove it. So... I have to make
due with silk flowers now. Oddly enough he seems fine with those.
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