What’s your favorite weed and grass killer spray concentrate?

[Nicasio]

I’m in Northern California and just wondering what all yall here like to use to kill weeds. I’ve been using Spectracide Weed and Grass killer from Home Depot. I buy the 32oz concentrate bottle and mix it in a gallon pump/spray bottle. Anything better/cheaper? Please chime in.

 

[Dave Hess]

I’ve used this many times and buy it from Amazon.

I nicknamed this weed killer Agent Orange. Make sure you wear gloves.

 

[Rand]

I have the hf version of this.. if you are a pyro at all you might giggle a little bit inside.
sounds like a hot air balloon.. WHOOOOSH.

It will also frost over a 20lb propane tank fast..
I keep my propane on a dolly if I'm doing a bunch.

 

[Racer4]

I really like RM43 sold at Tractor Supply, it is not cheap I pay $100.00 a gallon. You mix 6 ounces to a gallon of water it kills the weeds and treats the soil from other weed growth.

 

[AZjeff]

I look at the ingredient list, there's always something cheaper than the big name brand. Last summer I got some ACE weed and grass killer same ingredients and % as spectracide for quite a bit less on a sale.

@Rand Don't the weeds come back after the flamethrower?

 

[Jango]

I like Monterey Weed Impede.

 

[mccandish]

The cheapest generic 40+% glyphosate concentrate I can find - mix at roughly 2 oz. per gallon and go to town.

 

[Hall]

Aren't they all chemically the same ? They contain glyphosphate and there's no reason to add anything else. Whether you buy a brand-name version from Lowes or store-brand from TSC or Ace Hardware, it's all the same.

I will say, every time I use a weed killer, I swear, it makes the weeds stronger and rarely kills 'em ! I just use glyphosphate now and am careful spraying it so I don't hit any grass, flowers, etc that I don't want to kill. Two days ago I sprayed a bunch of the prickly weeds where 5-6 popped up in a 2' square area and saw them withering this morning.... and grinned....

 

[spasm3]

I add a drop of soap in any weed/grasskiller mix.

 

[CarLuver]

The cheapest generic 40+% glyphosate concentrate I can find - mix at roughly 2 oz. per gallon and go to town.

i get this one from tractor supply. makes a lot of "juice" and kills veggie fast

https://www.tractorsupply.com/tsc/product/compare-n-save-grass-weed-killer-41-glyphosate-concentrate-1-gal

 

[SHOZ]

If you just want to kill weeds and not grass get some Trimec with crabgrass killer. Use some non ionic soap with it, not dishsoap.

 

[BHopkins]

IFA, a farm and store chain here in Northern Utah, has a leaflet that they post by the weed killers. The leaflet has a recipe for "Killing Hard-to-Kill Weeds in Non-Turf Areas".

For each gallon of water:

1 oz spreader sticker/wetting agent.
2 oz. 2, 4-D.
3 oz. glyphosate.

For the 2, 4-D, I use MEC Amine-D, from Loveland. It has a couple extra active ingredients, in addition to the 2, 4-D acid.
I'm not particular about the glyphosate, as long as it is 41%.
For the spreader sticker/wetting agent, I use either the recommended IFA product or Hi-Yield Spreader Sticker.

I've been pretty happy with the results.

 

[AZjeff]

I add a drop of soap in any weed/grasskiller mix.

Had to look that up. Apparently you want to use a non-ionic dish soap and not all are. Something about the wrong kind of soap formula can interfere with the chemicals in the weed killer. Dawn soap seems to be non-ionic. We happen to use Dawn so might as well try it. How do you tell if it does anything different?

 

[wwillson]

Liberty, it's a burndown and very good at it.

 

[BHopkins]

If you just want to kill weeds and not grass get some Trimec with crabgrass killer. Use some non ionic soap with it, not dishsoap.

From what I can tell from the labels, Trimec has the same three active ingredients as MEC Amine-D.

For weed control on the lawn, I use the MEC Amine-D with a surfactant.

 

[spasm3]

Had to look that up. Apparently you want to use a non-ionic dish soap and not all are. Something about the wrong kind of soap formula can interfere with the chemicals in the weed killer. Dawn soap seems to be non-ionic. We happen to use Dawn so might as well try it. How do you tell if it does anything different?

I don't know if its better, it seems to stick better, i've noticed that some weeds seem repellant, and the spray rolls off like the plant is waxed, the soap seems to help with that. Dawn is what i use also.

 

[mrsilv04]

Pramitol 25E. It is not for rookies though.

 

[BHopkins]

Had to look that up. Apparently you want to use a non-ionic dish soap and not all are. Something about the wrong kind of soap formula can interfere with the chemicals in the weed killer. Dawn soap seems to be non-ionic. We happen to use Dawn so might as well try it. How do you tell if it does anything different?

The weeds should start It should start dying sooner, and be better dead. If I understand correctly, a surfactant makes it easier for the weed killer to absorb into the plant.

 

[nomas]

I’m in Northern California and just wondering what all yall here like to use to kill weeds. I’ve been using Spectracide Weed and Grass killer from Home Depot. I buy the 32oz concentrate bottle and mix it in a gallon pump/spray bottle. Anything better/cheaper? Please chime in.View attachment 214896

I've been using that for the last three years . Six ounces per gal. of water .

 

[The Critic]

Roundup Quikpro Herbicide ( 6.8 lbs )

Roundup Quikpro with the popular ingredient glyphosate is a post-emergent herbicide that is non-selective, killing broadleafs, grass weeds, and trees. Glyphosate provides a quick kill as a systemic and total vegetation kill (non-selective). Another popular quality of glyphosate in Roundup is...

diypestcontrol.com

73.3% glyphosate and 2.9% of Diquat. Nothing else comes close IMO.