Weed & brush spraying

[kenmac]

**** that Rm43 is just generic roundup at 43% concentrate. $100 for 2.5 gallons is a rip off. I pay $49 or so for 2.5 gallons of the same concentrate. That stuff is a rip off.

rural king is cheaper than that for higher concentrate

 

[California]

What about Ivy?

At my home in town a third of the back yard was covered. I mowed it then hit the new leaves with Roundup mixed 50% stronger than label recommendation, with a tablespoon of Dawn dish detergent per gallon. I applied the third weekly application today. Tiny starts of Oak and Blackberry look sick, the Ivy looks slightly dazed but not killed. I do think few to no new leaves appeared since last week's application. This mix is effective against Oak and Wild Blackberry at the ranch but this city Ivy seems a lot tougher.

Any advice? I prefer just Roundup because I can start new lawn there soon after, but if this does nothing then I need something else.

 

[smstonypoint]

What about Ivy?

At my home in town a third of the back yard was covered. I mowed it then hit the new leaves with Roundup mixed 50% stronger than label recommendation, with a tablespoon of Dawn dish detergent per gallon. I applied the third weekly application today. Tiny starts of Oak and Blackberry look sick, the Ivy looks slightly dazed but not killed. I do think few to no new leaves appeared since last week's application. This mix is effective against Oak and Wild Blackberry at the ranch but this city Ivy seems a lot tougher.

Any advice? I prefer just Roundup because I can start new lawn there soon after, but if this does nothing then I need something else.

Boston or English? Glyphosate (41%) at 3 oz./gallon has worked for me in killing English ivy. It seems to me that mowing has reduced the leaf area and thus the ability of the ivy to absorb the glyphosate.



Steve

 

[kenmac]

As far as I know. the dish washing detergent acts as a surfactant. (helps the chemical stick to the plant) The stuff I buy already has 15% surfactant added.

I have no idea what type ivy you have,but it has killed everything I have sprayed with it. From poison ivy to wisteria vines.

As far as I know, the Active ingredient in Round up is glyphosate . You can buy it under other names than round up much cheaper

 

[California]

English Ivy. I've been mixing 41% Glyphosate at 3.5 oz./gallon. The label specs 2.5 oz/gallon so that's 40% over recommended. I don't know if there's surfactant in this genuine Roundup, hence the dish soap.

I'm going to increase the proportion of dish soap after I noticed that the spray beads-up and runs off of the very waxy ivy leaves. It's encouraging to read that you guys have knocked down ivy with just Glyphosate.

This Round-Up was free, a mostly full gallon of 41% from the county hazardous waste disposal site. I stop by every month or so and find more Round-Up and paint there than I could ever use. Anything they receive that is legal to sell goes right out on their free table. So I can afford to be generous in mixing proportions. But maybe this stuff reduces strength after a few seasons in storage?

Anyhow the difference between the wilting oak starts and the herbicide-resistant ivy, is noticeable.

Thanks for the advice!

 

[M5farms]

English Ivy. I've been mixing 41% Glyphosate at 3.5 oz./gallon. The label specs 2.5 oz/gallon so that's 40% over recommended. I don't know if there's surfactant in this genuine Roundup, hence the dish soap.

I'm going to increase the proportion of dish soap after I noticed that the spray beads-up and runs off of the very waxy ivy leaves. It's encouraging to read that you guys have knocked down ivy with just Glyphosate.

This Round-Up was free, a mostly full gallon of 41% from the county hazardous waste disposal site. I stop by every month or so and find more Round-Up and paint there than I could ever use. Anything they receive that is legal to sell goes right out on their free table. So I can afford to be generous in mixing proportions. But maybe this stuff reduces strength after a few seasons in storage?

Anyhow the difference between the wilting oak starts and the herbicide-resistant ivy, is noticeable.

Thanks for the advice!

Mix some remedy in with the GLY

 

[LD1]

**** that Rm43 is just generic roundup at 43% concentrate. $100 for 2.5 gallons is a rip off. I pay $49 or so for 2.5 gallons of the same concentrate. That stuff is a rip off.

Not exactly.

RM43 has the addition of imazapyr.

Glyphosate (roundup) is non-residual. Meaning it has NO prevention characteristics.

Imazapyr is a residual. Meaning it prevents new growth. (length of time it remains viable as a residual depends on far too many conditions to say for sure).

Mixing it at 6oz per gallon....(or a gallon only covering ~1/3 acre) is also a REAL hot dose of the glyphosate. 41% glyphosate is normally reccomended at 4-6 pints per acre. which would make a gallon do 1.5-2 acres. (60000 sq ft - 80000 sq ft) as opposed to the RM43 only doing 17000 sq ft per gallon. But I suppose they have you mix it that hot for the low concentration of imazapyr they put in.

Like I said earlier, there are ALOT of different mixtures of different base products, and at different concentrations. Lots of ways to get the job done. And to say one works better than another is like arguing weather dawn or cascade dish soap works better for doing dishes.

 

[Oldoak]

Not exactly.

RM43 has the addition of imazapyr.

Glyphosate (roundup) is non-residual. Meaning it has NO prevention characteristics.

Imazapyr is a residual. Meaning it prevents new growth. (length of time it remains viable as a residual depends on far too many conditions to say for sure).

Mixing it at 6oz per gallon....(or a gallon only covering ~1/3 acre) is also a REAL hot dose of the glyphosate. 41% glyphosate is normally reccomended at 4-6 pints per acre. which would make a gallon do 1.5-2 acres. (60000 sq ft - 80000 sq ft) as opposed to the RM43 only doing 17000 sq ft per gallon. But I suppose they have you mix it that hot for the low concentration of imazapyr they put in.

Like I said earlier, there are ALOT of different mixtures of different base products, and at different concentrations. Lots of ways to get the job done. And to say one works better than another is like arguing weather dawn or cascade dish soap works better for doing dishes.

:thumbsup:

Yep, I looked it up a while back when this thread first started but didn't bother to comment about the difference. People should learn to investigate the details and facts particularly when it comes to chemical compounds they may want to use or not want to use.

 

[kenmac]

I'm going to increase the proportion of dish soap after I noticed that the spray beads-up and runs off of the very waxy ivy leaves. It's encouraging to read that you guys have knocked down ivy with just Glyphosate.

Yes, I would say if the chemical is beading up and running off the oily/ waxy leaves, you need to add more dish soap to make it stick.

Funny you find roundup at the hazardous disposal site.. One man's trash is another man's treasure !

 

[smstonypoint]

Funny you find roundup at the hazardous disposal site.. One man's trash is another man's treasure !

Could the Roundup have been diluted before its disposal?

Steve

 

[kenmac]

Could the Roundup have been diluted before its disposal?

Steve

That is a possibility. Unless the container had never been opened.

 

[TheMan419]

Could the Roundup have been diluted before its disposal?

Steve

or it could be not round up at all. Could be someone put something else in that container after using all the round up.

 

[California]

Could the Roundup have been diluted before its disposal?

I think it's authentic. Its light syrup with the same viscosity and color as several quarts I've gotten there or bought retail. But decreased potency due to age is a real possibility.

Here's another project with materials from that re-use site. (photo). Salvaged Rustoleum red primer and white topcoat. Thinned and filtered through double HF cone filters, it sprayed as well as fresh paint. Now 2 years later no problems noted.

 

[ovrszd]

Mix some remedy in with the GLY

Yep and maybe some 2-4-D.

 

[California]

Won't that make it impossible to grow lawn there for a while? The Ivy I want to kill is in an urban back yard. Those stronger herbicides are better suited to a rural fence line, or some place you want barren indefinitely, no?

 

[ovrszd]

Won't that make it impossible to grow lawn there for a while? The Ivy I want to kill is in an urban back yard. Those stronger herbicides are better suited to a rural fence line, or some place you want barren indefinitely, no?

Well, of Gly, Remedy and 2-4-D, Gly is the grass killer. Remedy is for brush. 2-4-D is for broad leaf (weeds).

 

[Oldoak]

Funny you find roundup at the hazardous disposal site..

Not really. I always tell my wife, if anything happens to me, don't mess with the chemicals and where to take them to dispose of them.

 

[California]

Funny you find roundup at the hazardous disposal site.. One man's trash is another man's treasure !

Nearly everything is ordinary stuff you wouldn't want to put down the sewer but legal to sell. I've gotten 4 oz paint store color samples (an artist friend wants all the bold colors I can get, says its as good as art store acryllic paint), hand dishwashing soap like Dawn, in Restaurant Supply Not For Retail Sale quarts, pressure washer soap, 409 and Simple Green concentrated soap, enough specialty oil for air tools, compressors, chainsaw bar oil - to last me for years. Occasionally motor oil in sealed quarts including Mobil1. Also Rustoleum, and premium quality latex primer.

Twice I've found real hazardous waste, MEK (I advised them and they pulled it), and Lithograph Ink Solvent that was long off the market due to cancer and brain damage. I returned that one with its MSDS after researching it.

Most of the volume is latex paint in colors nobody wants.

The principle behind recycling this stuff is they would rather see it used per label directions. Applied Environmentalism.

 

[ovrszd]

Maybe cut the Ivy and put clear finger nail polish on the stump?

 

[California]

Maybe cut the Ivy and put clear finger nail polish on the stump?

Unfortunately, no stump found. It's all slender runners going all over the place with a few leaves grown back after mowing.