Sprayed some unwelcome guests in my yard last week using Round-Up. Today I noticed that several of the things I sprayed look a little sick but have not gone brown and shriveled up like I normally see. It occurs to me that this weedkiller might be a year or two old and temperatures can exceed 80°F in the garage in the summer.

Should I ditch this can and get new?

I have a friend who farms, several years ago they had a spill of about 8 ounces of 100% Round Up when mixing a batch for spraying. The next spring there a dead patch about 4' across, the dead patch grew as rain spread the round up after about 7 or 8 years the patch was about 20 to 30' in size, then it started to fade. In the 128:1 mixture for woody plants, or 400:1 mixture for grasses, it is made to be done killing in a few weeks. The pre-diluted homeowner stuff at home and garden stores is bound to have shorter shelf life. Reapply or replace but absolutely don't let those plants live! That is how Monsanto breed a whole line of Round-Up resistant soy beans. Ivan

I've been told NOT to let Roundup FREEZE. As it will diminish the effectiveness. If that helps.

Not letting it freeze makes a lot of sense. Back in the days before the 'civilian' variety was available in garden shops I got a small peanut butter jar of full-strength ag RoundUp from a farmer friend to kill some stubborn thistles in my yard. Man, that stuff is potent!

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Rick, W0FG
CTR2 68-72

The new Round Up along with most weed killers has been so diluted by the EPA weenies that to make it work you have to do some “creative adjusting” to what’s in the bottle. I prefer the concentrate and you have to read their mixing instructions and do what you must to make it work!

The older stuff you sprayed it and it showed the weed/s were dying fast over night. The new "improved" junk it takes a bunch of days to start showing anything and if you lucky 1/2 of what you wanted killed will die after a while.

That EPA nonsense also applies to ant, bug and bee killers.
They really did a number on what you get, but the price did not come down any.

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14 S&W Revs none with locks!

We all lose our potency when we get older, sorta like the chewing gum left on the bedpost overnight!

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Term limits!

If it's been sitting for a ling time did you shake it up before using?

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Back to back World War Champs.

Read the label. You want the 50% stuff. Also Monsanto's patent on the active ingredient has expired (forget what it was-but look on the label) and Tractor Supply has the generic stiff-same stuff as the roundup for about half the price. I used to get mine from one of the cane farmers-he bought it by the 55 gall drum. Good stuff. I like to mix the 50% concentrate two oz to a gallon of water. Kills them quick enough for me. Tried 2-4D one time using diesel instead of water to mix. Killed the chain link fence with that one Was years ago and stuff still ain't growing there!! Remember, when it comes to Agricultural Chemicals improvise and adapt-if it starts smoking RUN otherwise as long you stay upwind and don't get any on you -you ought to be OK

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Forum consigliere

Round Up is very slow acting. It takes more than one week to effectively kill weeds. Give it at least 2-3 weeks.
Glyphosate is the active chemical, you can buy generic versions now.
It is not selective so it will kill most any green plant, not good to spray in the yard as it will kill the grass. Depending on the type of turf grass there are selective weed killers that kill weeds and not the lawn.

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Still Running Against the Wind

Good, sound advise - stay upwind!!!

Pete

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Don't tread on me

I bought a quart of this stuff and it smoked the weeds I sprayed it on:
KillzAll Grass and Weed Killer 41% Glyphosate, Hi-Yield Kill Zall

Some stray bermuda grass was a little more resistant till I added a few drops of dish detergent to help it soak into the thin blades. I was not happy with the Roundup I got at Home Depot, probably due to it being emasculated as already mentioned.

For a time being I was a state certified public grounds operator. Glyphosate is dangerous to living plants and people should be very careful applying it. Thats probably one of the reasons that the "Idiots" at the EPA have required a much diluted form to be able to fall into the hands of all the "experts" for home and garden use. Spray drift has accounted for millions of dollars in damages paid out to home owners, orchardists, etc. Glyphosate is incredibly resilient in undiluted form and its run-off is directly related to its danger of contaminating ground water.

I'm currently using a 1gal bottle of Roundup 50% that has been sitting around for 6 years - remember the action is much better dependent on the temp - over 80o is best, under 70o takes 2-3 weeks

(edited out names and fluff)

Roundup Weed & Grass Killer Concentrate has a shelf life of a minimum of eight years. The product may
last beyond the minimum time period though. Many variables in storage conditions can affect the shelf
life of a product. Roundup Weed & Grass Killer Concentrate will not be fully effective one
day and ineffective the next; the product will gradually lose its effectiveness over time. Store both
unopened and opened product containers in a cool, dry place and protect them from extremes in
temperature. Freezing temperatures, for example, won't affect the product, but may cause damage to the
container and could result in a chemical spill. Stored correctly, your product will last at least the minimum
number of years and probably longer.

You may store diluted Roundup Weed & Grass Killer Concentrate for up to 6 months. After that, the
surfactant, or sticking agent in the RoundUp, breaks down due to impurities in tap water. RoundUp
Ready-to-Use products have a 4-year shelf life because they have an added ingredient to prevent this
breakdown in the surfactant. If you store diluted product after use, be sure to mark the storage container
to note both the contents and the date the product was mixed.


Glen Kussow
Consumer Response Representative
The Scotts Company and Subsidiaries
14111 Scottslawn Road
Marysville, OH 43041

Now there's a thought. No, I just cranked up the pump gadget and got spraying. It is the "civilian" strength stuff from Home Depot.

Ya gotta shake it

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Still Running Against the Wind

Buy the concentrated stuff of what ever it is, and mix it yourself. Round Up takes a while to work. And sometimes your weeds can become resistant to a chemical if you use it alot.

Shake shake shake... shake shake shake... shake your Round-up... shake your Round-up.

I go to the local farm supply and buy Glysophate, 2.5 gal is $45.00.

I mix 6 0z per gal in a hand sprayer. Kills about everything.

Every year I forget to bring the remainder of the concentrate into a heated area and it freezes. I then have to mix it twice as strong to get the same results.

I shook it up and retreated the offending weeds. They were mostly forms of bindweed which are always a pain to kill as you don't know how many of the bits you can see are connected underground in mutual support. I'll see what the next few days brings.

Why would you want to kill bees? Wasps, yellow jackets, I can see, but bees? As a bee keeper I take offense to that, as a bee will not harm you unless you're trying to either destroy or rob the hive.

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ΜΟΛΩΝ ΛΑΒΕ

Buying pre diluted roundup is like buying pre mixed cocktails.
While we're on the topic...anyone got a line on any powder (DDT)??? Need to re trench the house

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Forum consigliere

It might be sort of tough if'n you're a city slicker, but if you can go to a aerial spray outfit and see if you can buy a gallon or so of the good stuff.

Round up is about this time of year, actually in a few more weeks, plus some 2-4-D might be what you want.


WuzzFuzz

What kind of creepy crawlers? DDT is probably worth more than of box of 50 factory bullets, or 2 oz of gold.


WuzzFuzz

The term bees was used as generic word .

I have a big carport that leads to my house we get lots of "Bee" nests formed under there. We have been bit and harassed by those "friends of yours” I will destroy ANY nests that pose a hazard!!!!!!!!

The spray I was referring to is those that knock down bees at 15'. It used to be that one hit and they would fall down dead. Now you spray them/ or nest with the new improved(AKA watered down) and they still fly and can be dangerous for a minute or so. Mud wasps put their tubes all over and I get rid of them also. Just for giggles we get plenty of underground "bee nests" down at beach and they have no sense of humor at all. They normally get a dose of 2 stroke liquid and a match after the sun goes down

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14 S&W Revs none with locks!

Sounds like wasps to me. Big difference. vespidae v. apidae. Generic words for generic minds.

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ΜΟΛΩΝ ΛΑΒΕ