Bonide Captain Jack's Deadweed Brew, 32 oz Concentrate, Controls All Types of Weeds and Grasses, For Organic Gardening

Here in So Cal, weeds follow rain like clockwork. And since there was an untended lot across the street from me, I have about 15 years of weed seed accumulated in the soil. In addition, I'm trying to install a drought-tolerant native landscape, which requires that I clear the front yard first.Digging out weeds and grasses turned out to be a never-ending task. I have tried many different options, including hand weeding, various "organic" weed killer, flame torch, and glyphosate and decided to try this one.First, it is not OMRI (organic gardening) certified. But being a chemist, I researched the online Safety Data Sheet and found that it is mostly C8 and C10 saturated organic acids, which can be derived from coconut oil, with 20% "other" (nonlisted, therefore presumably non-hazardous surfactant). According to what I can find, the active ingredients are non-cancerous, not persistent, and do not bio-accumulate. That's a plus.Taking a cue from other reviews, I mixed it at the higher concentration and sprayed it on a variety of emerging and established weeds and grasses.First of all, it works really well on most newly-emergent weeds and grasses, including spurge, foxtail, and oxalis. It coats leaves evenly and - unlike glyphosate- "burns" them quickly, so I can see in two days where I missed, and re-spray where necessary.It does NOT work on established grasses, even tho I saturated some clumps thoroughly, and does NOT workon common mallow.Because it only works on leaves, and not seeds, it must be re-applied on each new crop of sprouting weed and grass seeds. But because of the nature of this weed killer, I feel more comfortable re-spraying, and with each application there are fewer and fewer sprouts to contend with. Overall, this spray will make clearing the yard much easier, and reduce the amount of hand-digging by about 70%.It IS pricey, but because of the combination of positive qualities and the amount of work it will save, I feel it's worth the cost.

Word great on broadleaf weeds- not as well on grassy weeds. Bu far the best organic weed spray I've tried.

This is not quite as powerful as round up, but obviously much less toxic. So far I’m impressed. I’m on my first bottle.

This stuff absolutely kills whatever you spray it on- we were using it to kill bermuda grass in mulched pathways and weeds in a paver/gravel patio-type area. It's extremely effective at killing the foliage it's sprayed on, although since it's not systemic it doesn't kill the whole plant automatically.It does smell a bit weird/stinky though, and it's not the easiest thing to wash off your hands. Good stuff otherwise though, and not environmentally unfriendly, being something akin to a soap.

Great stuff that works. My only hassle is reading the label to follow the ratios... otherwise it kills the weeds!

This is the first time I’ve used this specific product from this company. I’ve used other stuff, but I was blown away. I noticed the weeds were already wilting within a couple hours! By next morning they were well on their way to being dust in the wind. The only thing is that it does leave a little white residue on your concrete. It rinses off with some rain, or you could probably use a hose. However it’s not terribly noticeable unless you have dark pavers or asphalt.

This stuff is amazing, I tried other things but had to respray several times to get rid of the weeds on my driveway. One time I used this stuff and the weeds are totally gone!!!! I am impressed and its organic!!!! I will use this from now on.

I sprayed a patch of grass that I have to get rid of,several times. Blades were brown within 3 hours, every time. The grass regrew from the roots within days after spraying. I sprayed at the 3%, then 6%, then 9% strengths, with no different outcomes. I tried calling customer service twice, left messages both times and never received a call back. Unfortunately the next best option is to spray with a product I tried to avoid.