From

Location

Message

Date Posted

Grittyville, WA

You may not want my two cents, but it looks to me like rain splash got the roundup on your leaves. I wonder if the drainage, slope of the land, direction of the irrigation, or application rate caused it to be worse around the one plant than the others.

Yes you gotta watch out for the residue it can last longer than they say it does and the roots can absorb it.

It cheates specific nutrients maybe you can do a "round up antidote" video next time by pumping the plant up with the nutrients that get locked up lol.

More thoughts than u need. Awesome effort fun to watch.

7/10/2021 1:35:07 AM

Bethlehem CT

Gritty have you seen any research about the soil absorbed round up? Is there a link you could post?
Could the wind have blown it into that plant. Was the spray nozzle adjusted? So many questions about why just that one plant got hit so bad. Was it volatilizing in the heat? (didn't think it could do that.)

7/10/2021 7:29:33 AM

Grittyville, WA

My personal experience using it. I dont know about volatization. It's a useful product but I dont slather it on anymore because it doesnt go away instantly. Definitely can be a residue. If its applied at the lowest possible rate then there should be minimal side affects but how many of us pull our punches when it comes to killing weeds? It takes some serious self control to just apply the bare minimum.

7/10/2021 9:55:26 AM

Grittyville, WA

Add ammonium sulphate to get more punch (there is a chemical synergy) and pick a good window of weather... Ideally I think you dont want rain or to irrigate for maybe five days or so!? I'm a fan of overhead irrigation too... but the only place you want the glyphosate to go is inside of the weeds.

7/10/2021 10:06:34 AM

Grittyville, WA

...I believe I've seen absorbtion into the roots where I have sprayed & tilled and then planted immediately after. But it could perhaps just be from rain splash.

7/10/2021 10:27:37 AM

Syracuse, NY

Google this and all will be answered:

days until planting after roundup

I was unsettled about that if it's mixed it loses effectiveness after 4 hours - DOE! - Glad I add TO it in my sprayer like another quart of oil into my car to go a litt-le longer, lol.
I, myself use DOUBLE strength Tractor Supply store brand 41% and an otherwise COVID mask to boot - I knowwwwww, maybe it's ineffective but it's SOMEthing. Within a week, weeds be gone or almost and anything I have planted within a day or so (3?) is doing well.

PS---Forget the pumpkins - let's get an OTT (UTB?)
on that BEARD!
Haaaaaaaaaaaaaaaaaaa haaaaaaaaaaaaaa ha ahem.

For anyone:
For any plants that have Roundup evidence -
Is anyone AGAINST watering their plants with plain water?
I can of course see the leaves on MINE that were hit and everything since is fine without doing anything OTHERwise differently as well. There may be a slowing to a halt of growth on a TINY plant; If it rains, is that too much watering?
Nooooo....so, water all you can and want to and it'll be back on track soon. yay. eg

7/10/2021 12:20:32 PM

Grittyville, WA

As convenient as google is, I have gotten bad answers from them but I agree if you use the lightest dosage possible then there shouldnt be a whole lot of worry. Like you I bought the concentrate so if I mix it wrong or apply it heavily then I do believe I may see residual effects.

7/10/2021 12:28:43 PM

Grittyville, WA

I think I have in the past.

7/10/2021 7:02:28 PM

Mill Bay, British Columbia

Big Moon, this is a great read with actual facts and not just a random hypothesis.

https://forestinfo.ca/faqs/how-long-does-glyphosate-remain-in-the-soil-water-plants-and-sediments-after-treatment/

7/11/2021 12:28:57 AM

Grittyville, WA

Northshore's link says I am correct:

The time taken for glyphosate concentrations in forest litter or soils to decrease by 50% ranges from approximately 10 to 60 days depending upon environmental conditions (Thompson et al. 2000; Roy et al. 1989; Newton et al. 1994; Newton et al. 1984, Feng et al. 1990; Legris and Couture 1988)

Thanks Northshore.

7/11/2021 2:42:10 AM

Grittyville, WA

Looks like Gritty is smarter than Goo(f)le!!!

7/11/2021 2:46:20 AM

Bethlehem CT

Thanks for the link North shore. Gritty I found this link, stating what you said above. I had been taught it is completely locked up in the soil and is mostly digested by microorganisms in 21 days and that roots couldn't absorb it.
The crazy thing about all this is that Glyphosate is technically speaking an organic compound. It is carbon based and breaks down in the environment. The word "organic" has lost it's technical definition and means something a little bit subjective now. I am not saying that round up should be able to be used on organic farms, but we should come up with more suitable terms to describe organic farming.
https://homeguides.sfgate.com/effect-glyphosate-tree-roots-29076.html

7/11/2021 7:18:36 AM

East Sussex, UK

The term "Regenerative agriculture" is replacing "organic".

7/12/2021 3:32:40 AM