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

[This review was collected as part of a promotion.] This Captain Jack's Deadweed Brew only burns what it touches (i.e. the foliage), and does not kill the roots of the weed, so I don't really know if it is a better use of my time than simply pouring boiling water on the weeds. On the bright side, it is fairly economical, in the sense that you only need about an ounce or two of concentrate to fill a BIG 32 ounce (1 quart or a quarter gallon) spray bottle. It's just that you'll be spraying every week from now until the end of time, since the weeds remain completely healthy and viable below the surface. I just don't know if the results are superior to boiling water.

[This review was collected as part of a promotion.] This works really great! We sprayed Ana and n a couple of days the weeds were dead and easy to pull out and get rid of. If you have annoying weeds this is the product to buy to get them gone! Buy it, it’s worth it !

[This review was collected as part of a promotion.] I got captain Jacks to try for my weeds in my grass and other areas in my yard. I was amazed at how well it worked. The weeds were gone fast on my driveway and crevices. The lawn looks so much better. I dodnt have weeds keep growing in my grass. Finally a product that works on weeds.

[This review was collected as part of a promotion.] I get weeds around my vegetables and I've always been afraid to use a weed killer for fear of killing my plants. I recently used Captain Jack's Deadweed Brew Concentrate and my vegetables are still alive. And those weeds are getting what they deserve.

This stuff works okay. It doesn't really get rid of dandelion or really established weeds. Takes multiple applications to get rid of established weeds. Don't waste your time applying it at all if the temps aren't above 55 or 60. If its slightly cool out, I find this spray to be pretty ineffective. I do like that it's got more natural ingredients so I don't feel like I'm spraying things as bad as round-up. But, with the amount of applications I have needed, and I still have all my dandelions, I wonder if 1 application of round-up would have been better for the earth than 5 or 6 of the Dead Brew.

I purchased this product early in June with the high hopes of eliminating some weeds that had sprouted after a landscaping firm had mechanically removed the vegetation in early April. I mixed the solution as directed and sprayed the vegetation (making sure to wet all of the leaves). The smell afterward was unpleasant (to say the least) After a couple of days, the weeds were still growing so I wrote to Bonide describing the condition and provided pictures of the site. I asked about the odor and the oily residue on the spraying equipment. They responded that they didn't have any suggestions about the odor and suggested Dawn dishwashing detergent for cleaning. I had suggested that perhaps the reason the product didn't work well was that it might not be mixing well with water. They noted that the weeds were mature and might need a second application and that a few drops of Dawn might improve the mixing. I tried that and the results were less than impressive. I'm glad I gave the product a try, but I don't anticipate that I'll purchase any more of it.

I usually use glyphosate as my broad-spectrum herbicide. I decided to try Captain Jack’s Deadweed Brew to see if it is a worthy alternative. The fact that it’s approved for use in organic gardening had no bearing on my decision to try it. · The SDS for Deadweed Brew lists caprylic acid and capric acid as the primary ingredients. I wasn’t able to find these chemicals listed among the ingredients for modern herbicides. Both ingredients are naturally occurring as well as being produced for industrial uses. My guess is that the herbicide works by destroying the top growth of the plants on which it is applied. · There are three recommended concentrations for application. I mixed a 6% solution to use on the weeds and grass growing in the mulch beds in my yard. I used a handheld one-quart-size sprayer to apply the herbicide. I took photos of some of the treated plants before application and two days later. The herbicide began to de-foliate the Wild Violet within 24 hours of application. After two days, most of the Wild Violet had completely disappeared and the moss was brown and dying. Some plants such as Orchardgrass required a week's time before showing browning of the foliage. · Deadweek Brew has a strong pungent smell that lingers for about a day after application. I wore gloves during mixing and application but I smelled Deadweed herbicide the rest of the day. Some of the mist must have landed on my clothing. The fact that the herbicide has this foul smell affected my overall rating of the product. · Made in USA.

Highly effect Captain Jack's BONIDE 32 OZ. DEADWEED BREW CONCENTRATE. I extend beds by killing grass and weeds and this chemical does the trick effectively. I also continually get weeds around bed edges and spray when needed and this brew concentrate works great. Takes a few days for the weeds to die. Some crabgrass has very deep roots and can take several days for the weeds to die. Recommend if you have weeds to kill or grass areas.

We have a fourth acre devoted to our vegetable garden. Small stone was placed between garden beds for clean walkways. Even though we removed all the sod before laying stone, we've fought weeds and tough grasses. I don't like using poison weed killers at all. The dog and cats roam the area, and we really don't want to harm pollinators. This Deadweed weed control touts its organic ingredients, so we decided to try it. Two days after I sprayed, weeds are showing significant wilt. I'm not seeing plants browning up, but we had an unexpected rain shower early yesterday. I'm amazed the spray had time to even wilt the weeds! It's not clear in the picture but these weeds were all upright two days ago, and are now starting to lay over. The concentrate really goes a long way. I can spray our garden walkways with 1 gallon of the mixture. One side note: the concentrate is pretty smelly, sort of like wet dog. Small price to pay for finding a decent organic herbicide!

The Bonide brand, 32 oz. Deadweed Brew Concentrate is a fast acting non selective vegetation killer. My interest in trying the Deadweed Brew Concentrate was to kill Morning Glory. And Deadweed Brew Concentrate used at maximum concentration did work better than anticipated and better than systemic weedkillers I have used previously. I also tired it on ivy with less than satisfactory results with a single application at full strength. Likely two or three applications would have been required and then the roots might have still been active as it does not appear to be a systemic weed killer based on using it on Ice Plant. It did kill the ice plant where contacted. However, ice plant not contacted was unaffected unlike a systemic weed killer. Regular weeds in the sun were dead and brown in 24-hours. The same weeds in the shade not so much after a week’s time. My take away is that Deadweed Brew requires sunlight and warmth to work well. The ivy in the shade was likely less impacted by being shaded. Photos are split. Top half before Deadweed Brew and bottom half, after.

This is a very impressive product that is suitable for weed control in organic farming. Caprylic acid and Capric acid are plant extracts derived from coconut oil and palm seed kernel. The mixture of caprylic acid and capric acid functions as an on-contact, post-emergent, nonselective herbicide, meaning it will “burn” and kill all plants it contacts. And it does so within 24-hours. See before and after photos. It will also kill fungus, algae, moss and bacteria. I used the 3% mix—4 ounces to a gallon—on driveway and sidewalk cracks, and in mulched areas near desirable plants and shrubs. The results were amazing on leafy weeds. This is the only non-selective herbicide I will use in the future. Nothing on the label indicates the country of origin of the ingredients.

I feel comfortable with this weed killer because the label says the active ingredients are capric acid and caprylic acid. A google search reveals that capric acid occurs naturally in coconut & palm oils and caprylic acid is in goats’ milk and is sometimes used as a dietary supplement. I still wear gloves, long pants/sleeves and a mask when mixing Captain Jack’s Deadweed Brew because it is much more concentrated than is safe. However, I don’t worry too much after promptly rinsing off a small spill or inhaling near the sprayed area. I plan to use a 2 gallon sprayer for this, but I mixed a 24oz spray bottle for my first test (see photos). It does the job! I sprayed it on some spurge-like weeds that were taking over a space near some rocks where I want to add some plants. It rained 0.03” about an hour after I sprayed, but the weeds still turned brown and wilted within a couple days. Unfortunately, a couple weeds either got rinsed or didn’t get thoroughly coated because they started to recover. however, pulling out the wilted weeds was easy because the roots were no longer strong enough to hold them in the dirt. I plan to keep some mixed Captain Jack’s Deadweed Brew on hand for spraying weeds that pop up in between rocks in my dry river bed and in the rock mulch around my house. Pulling fresh weeds up by their roots makes a mess by spilling dirt all over the rocks. Whereas, Captain Jack’s will reach down and kill the roots and the dead leaves will blow away or can easily be removed. In another part of my yard there is a patch of Bermuda grass which is hard to kill and also very hard to dig out. I mixed a gallon for this job, but the gasket in my cheap, old sprayer is no longer doing its job so I poured a quart into my hand sprayer again and sprayed a small area. After just 22 hours, it looks really promising (see photo), but until I kill it all, I am sure the healthy stuff will just spread out and fill the dead area. If I get a new sprayer and spray the whole area, I will submit another review. It looks like this may be effective against this terrible weed!

The weeds have gotten the best of me this year and having free range chickens and geese it is always a concern using pesticides. The active ingredient is caprylic acid which is not toxic to them even so I have sprayed where they do not go. The day that I sprayed we had no rain for a week and the temp was 65. I chose to use the 6% solution. This spray kills on contact and is not a systemic so repeated sprays on plants that grow back by roots will be needed. After an hour I noticed several plants wilting himalayan blackberries narrow leaf plantain and buttercup. The next day I noticed that the tall grass was still green in the center and so was the Canada thistle. I will be using this again around our mailboxes it dig a great job If this help with the thistle it will be added to my spray program

This concentrate of Captain Jack's "DEADWEED BREW" makes 8 gallons of weed killer for all types of grasses and weeds. What makes this product unique is that it is safe to use in organic gardening. It is also formulated to also kill algae and moss. The active ingredients are 44% Caprylic Acid and 36% Capric Acid which are the ingredients that make it safe to use in organic gardening and safe around people and pets. The concentrate is designed to treat 3200 square feet of the surface and rainfast in three hours. The formula acts very quickly on the surface sprayed. I use it with peace of mind in my home garden of creole tomatoes and bell pepper and shallots.

First as it clearly says; this kills everything. This is an “organic brew” that does the trick. I cannot attest to it being organic but I tend to believe it’s been EPA certified if they openly publish it. I took pictures of the area that I treated to test this product. I used the 6% suggested strength, 2 oz (4 tbls) per 1 qt water. The pictures are from before the treatment, 1, 2, 3, and 5 days after that I sprayed. It did not rain until day 4 (no picture). Temperatures were 40s at night and no higher that low 70s during the days. If you are looking for an organic product to kill weeds and grass, this is the one you want.

Works well at the strongest dose but expensive.

Worked great. Only issue is the smell. Keep this stuff outside!

Doesnt work as stated. Sprayed 2 weeks in a row hoping to see some withering. Dont waste your money on this product

Kills them dead at full strength

Weeds and grass were starting to die within a couple of hours. So far I’m pleased with the product.

It works pretty consistently.

Excellent and fast results

[This review was collected as part of a promotion.] captain Jack’s Dead Weed Brew is the real deal sprayed my walkway weeds and literally the next day they were completely dying. Pretty good stuff. Spray bottle is nice, but I'd definitely buy this in bulk or concentrate