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BioAdvanced Fungus Control for Lawns, Ready-to-Spray, 32 oz
$21.88
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BioAdvanced 704710B 2-in-1 Moss and Algae Killer and Cleaner for Lawns, 32 oz, Ready-to-Spray

4.0 4.0 out of 5 stars 2,547 ratings
Price: $19.97 ($0.62 / Fl Oz) Get Fast, Free Shipping with Amazon Prime FREE Returns
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Purchase options and add-ons

Brand BioAdvanced
Item Weight 32 Ounces
Liquid Volume 32 Fluid Ounces
Item Form Spray
Active Ingredients fatty acid formula

About this item

  • MOSS and ALGAE KILLER and CLEANER: Kills moss, algae, lichen, mold, and mildew wherever it grows and protects for months
  • 2-in-1 KILLER and CLEANER: Use on lawns, patios, roofs, buildings, decks, driveways, mulch, and more
  • KILLS WITHIN HOURS: Moss will quickly turn yellow and then brown, but must be physically removed once dead
  • NON-BLEACH FORMULA: BioAdvanced non-bleach formula will not stain or harm lawns
  • COVERAGE AREA: Treats up to 500 square feet
  • Sprayer head may vary from image

Customer ratings by feature

Easy to spread
4.4 4.4
Easy to use
3.8 3.8
Comfort
3.5 3.5
Value for money
2.7 2.7
See all reviews

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From the manufacturer

Kills moss algae and lichen

Kills Weeds

No odor

Also Kills Mold

KILLS WITHIN HOURS, PROTECTS FOR MONTHS

Won't harm lawns or ornamental grasses when used as directed

NO ODOR, NON-STAINING

Cleans concrete, pavement, stucco and wood without damaging or staining

ALSO KILLS MOLD & MILDEW

Fast-acting formula kills mold, mildew, moss, algae and lichen with a single application

when to apply
where to apply
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Customer Reviews
4.5 out of 5 stars
4,220
4.3 out of 5 stars
5,519
4.1 out of 5 stars
5,558
4.4 out of 5 stars
12,918
4.2 out of 5 stars
7,474
Price $18.47 $20.97 $12.97 $18.98 $21.97
General Use 3 Systemic Products Cures & Prevents Listed Lawns Diseases Kills Listed Lawn Weeds Plus Crabgrass Without Harming Lawns The Curative Solution For Flowering Plants Special penetrating formula kills even the toughest weeds

From the brand

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BioAdvanced

BioAdvanced 704710B 2-in-1 Moss and Algae Killer and Cleaner for Lawns, 32 oz, Ready-to-Spray

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Product guides and documents

Instructions for Use (IFU) (PDF)

Product Description

Product Description

BioAdvanced 2-in-1 Moss and Algae Killer and Cleaner uses one formula to kill moss and algae wherever it grows. The 2-in-1 non-bleach formula kills moss, algae, lichen, mold, and mildew and will not stain or harm lawns. It works to kill within hours. The moss will quickly turn yellow, then brown and can be washed away by hand or by rain. With just one application, it protects for up to one year and can be used on lawns, patios, roofs, buildings, decks, driveways, and more. The ready-to-spray applicator is easy to use. Simply attached the product to your garden hose, turn on the water, and use your thumb to activate the sprayer. BioAdvanced 2-in-1 Moss and Algae Killer and Cleaner measures 32-ounces and treats up to 500 square feet. Active Ingredients: 22.1% fatty acid formula. EPA Registration Number: 67702-12-92564.

From the Manufacturer

One formula kills Moss and Algae wherever it grows. Treats lawns, patios PLUS roofs and buildings. With other brands you'd need two formulas to treat all areas. Kills: Moss, Algae, Lichen. Where to Use: Lawns, decks, patios, fences, mulch, driveways, gravel, roofs and buildings. When to Use: Anytime during the year. Active Ingredients: Potassium soap of fatty acids: 22.11%.

Customer reviews

4 out of 5 stars
4 out of 5
2,547 global ratings

Customers say

Customers like the ease of use of the weed moss control agent. They say it's easy to apply and does not leave a residue. However, some customers have reported issues with leakage, sprayability, color, and water resistance. They mention that the bottle leaked all over the box, the directions were soaked in residue, and the product didn't spray very far. Opinions are mixed on quality, performance, and value.

AI-generated from the text of customer reviews

34 customers mention25 positive9 negative

Customers find the weed moss control agent easy to use. They mention that it's easy to apply with a hose, covers a good amount of area, and is much easier to use than wet n forget.

"Easy to apply with a hose, covers a good amount of area...." Read more

"...Easy to use hook to your water hose and spray...." Read more

"Found this product hard to use with hose. Much prefer a product mixed in a gallon garden spray dispenser which is less wasteful." Read more

"...countless other invasive weeds were demolished, and it was pretty easy to use." Read more

172 customers mention84 positive88 negative

Customers are mixed about the performance of the weed moss control agent. Some mention that it works very well, while others say that it didn't work well for them.

"...Definitely does not kill all crabgrass in my experience and does not work immediately, but I did see some results." Read more

"...Best part this product works in just a couple days the weeds and crabgrass was dead or soon to be dead...." Read more

"...work but the sprayer on the first bottle (with the slide) was pretty much useless and with the second bottle I used way more than I should have...." Read more

"...So yeah if you have weeds itdoes a pretty decent job. Again depends on what you need to accomplish with your lawn...." Read more

157 customers mention69 positive88 negative

Customers are mixed about the quality of the weed and crabgrass killer. Some mention that it does kill weeds, while others say that it didn't really kill the moss in the dirt as they had expected. Some say that the product is easy to attach to hose, but it didn’t really work at killing the Moss.

"...Definitely does not kill all crabgrass in my experience and does not work immediately, but I did see some results." Read more

"...However, this is a great product to use. I’ve used it in the past." Read more

"...with that said it will not kill crab grass I was like wtf, i put this down and my crab grass did not die...." Read more

"...Excellent weed and crabgrass killer with a great price I highly recommend." Read more

39 customers mention15 positive24 negative

Customers have mixed opinions about the value of the weed moss control agent. Some find it to be a good price to keep weeds gone, while others say it's not worth the money.

"...powdered charcoal to clean it off and it actually worked but it was expensive...." Read more

"...Purchased this weed and crabgrass killer mainly because it had a great price that i couldn’t pass on. Easy to use hook to your water hose and spray...." Read more

"This just didn't work for me and is really expensive. I live on a wooded lot and have some areas with very heavy moss growth in the lawn...." Read more

"...Unfortunately it only killed some of the mildew. Not worth the money." Read more

36 customers mention0 positive36 negative

Customers are dissatisfied with the leakage of the weed moss control agent. They mention that the bottle leaks all over the box and the liquid spilled in the box.

"...When I set the hose down, the bottle fell over and the contents started to spill out. Later realized there is a sliding switch to close...." Read more

"...Amazon failed to deliver it twice and the third came and had leaked in the shipment like others report. See my photo...." Read more

"...I have used it before. Works great. But this bottle leaked everywhere when I opened the shipping box. I will make it work." Read more

"Product was leaking, the lid probably was not properly screwed on at the manufacturer...." Read more

16 customers mention0 positive16 negative

Customers are dissatisfied with the sprayability of the weed moss control agent. They mention that the nozzle does not open all the way, it doesn't spray very far, and the box was all socked and dripping with liquid. Some say that the spray stream does not reach the roof and that the bottle barely trickles out. They also say that it's hard to control the amount being sprayed and that it dribbles from the hose side.

"...proof, it will NOT wash away either, leaving toxic fumes and vapors all over your lawn it's very hard to wash off and stays lingering for weeks,..." Read more

"...Bottle dribbles from spray nozzle. Bottle will dribble from hose side too if you synch down with pliers. Wear disposable gear and eyewear...." Read more

"...Instead of a nice steady wide spray, it barely trickled out and rendered the rest of the bottle unusable...." Read more

"...licking that when it was delivered the box was all socked and dripping with liquid. Quite pungent smell and corrosive...." Read more

12 customers mention0 positive12 negative

Customers are dissatisfied with the color of the weed moss control agent. They mention that it turns some mosses yellow, brown, or gray. Some customers also say that the leaves get a brown tinge. However, some customers report that the product doesn't work as expected and the mossed areas are still green.

"...After a day and a half the moss had turned a green grey (some remained green) but did not turn brown ...." Read more

"...Moss did yellow but still took lots of effort to remove" Read more

"...By the 2nd day you could tell the moss was dying and had either turned yellow or brown. NOW comes the fun part...." Read more

"I used this on my roof. The tops of the moss turned brown but 2 weeks later the moss is still there. It did not kill it...." Read more

10 customers mention0 positive10 negative

Customers are dissatisfied with the water resistance of the weed moss control agent. They mention that the box was wet upon arrival due to a leak in the bottle top not being tight. The directions were soaked in residue. They also say that the product is rain proof, but it will not wash away.

"...The worst part is that since it's rain proof, it will NOT wash away either, leaving toxic fumes and vapors all over your lawn it's very hard to wash..." Read more

"...There was white goop dryed in the nozzle. I cleaned that an sprayed the roof (~240 sq ft). It did nothing...." Read more

"...but the middle bottle broke open causing the chemical to spill; box was soaked. Will still be able to use the other two bottles." Read more

"...I did notice that the trunk was wet/damp where the moss had been. Easy to use and has other uses." Read more

It made my lawn look great until natural selection took over
3 Stars
It made my lawn look great until natural selection took over
Made my lawn look great for about 3 years in a row until weeds until I inadvertently selected for weeds it does not control. Fortunately, these easily pull out by the roots, but it's a constant struggle to keep them at bay, and they have alsospread to the garden.So, only 3 stars not for the product, but for the whole strategy of using an herbicide on my lawn
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Top reviews from the United States

Bert Dolan
5.0 out of 5 stars It does work for mossy roofs!
Reviewed in the United States on May 31, 2023
Style: Previous SprayerVerified Purchase
I had a serious moss problem that I finally tackled last Spring and the moss was dead before i even got off the roof. Make sure you also spray from below onto the roof to get under the shingles, just be careful not to have too strong a spray going, you dont want to lift any shingles at all. It leaves a faded white stain for a very short while and soon disappears. After giving my roof multiple treatments last year, this year no more moss... dont forget to get the dead moss off the roof after it dies, and sometimes you may have to use a soft brush to get hard to remove spots, go very gently on the roof shingles
One person found this helpful
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othos
4.0 out of 5 stars seems to kelp
Reviewed in the United States on April 2, 2024
Style: ConcentrateVerified Purchase
Using this to reduce the weedy look. Less cutting with less weeds.
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Gina R.
5.0 out of 5 stars Damaged in Transit
Reviewed in the United States on April 8, 2024
Style: Ready-to-SprayVerified Purchase
Never received because it was damaged in transit. However, this is a great product to use. I’ve used it in the past.
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Hmaxim
3.0 out of 5 stars Works, but not enough product
Reviewed in the United States on December 25, 2023
Style: Previous SprayerVerified Purchase
One bottle is not enough for much area. Hard to say how much you need but the more moss, the more you need. A light coating is not going to work. A bit of a soaker is needed and works great. But you need a few bottles to treat a moss filled average lawn. You will see for yourself. I don't know of anything better so far, but if I find one I will switch.
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Frank DeOrio
5.0 out of 5 stars Easy to use and it works!
Reviewed in the United States on April 27, 2020
Style: Previous SprayerVerified Purchase
I used this product to remove some moss and algae that developed on some teak patio furniture that I leave out all winter in Central NY. I sprayed it on as directed 2 days before we had a rain. All the moss and algae was gone and it didn’t brighten my teak furniture which is what I desired. This stuff works great and is worth every penny that I paid for it. It doesn’t go very far, but it works.
2 people found this helpful
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Tatia
1.0 out of 5 stars Doesn't work well, can't recommend it
Reviewed in the United States on July 17, 2019
Style: Ready-to-SprayVerified Purchase
I used the all in one 32 ounce bottle that connects to the hose and mixes with water, followed the directions but made the big stupid mistake of not wearing a mask which is crucial during the handling of this product. The label did not indicate to wear a mask or even eye protection, just said to use gloves, unfortunately gloves are not enough. I actually ended up getting poisoned just from breathing the product while spraying it. Big mistake, be very careful because you will be exposing Yourself and everyone around you to toxic harmful chemicals and it will not kill even your crabgrass nor weeds. The worst part is that since it's rain proof, it will NOT wash away either, leaving toxic fumes and vapors all over your lawn it's very hard to wash off and stays lingering for weeks, especially if it's sunny outside because the sun will cook those chemicals evaporating the fume concoction and water will not wash it off. I called the company and was told to use activated powdered charcoal to clean it off and it actually worked but it was expensive. Weeds and crabgrass are a nuisance but these products aren't the solution to get rid of them, it's best pull them out by the root and re sod the grass if possible.
9 people found this helpful
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Aurelius
5.0 out of 5 stars Product works good
Reviewed in the United States on September 22, 2023
Style: Ready-to-SprayVerified Purchase
My yard was overrun with weeds and especially crabgrass and I needed serious help to take back my lawn. Purchased this weed and crabgrass killer mainly because it had a great price that i couldn’t pass on. Easy to use hook to your water hose and spray. Best part this product works in just a couple days the weeds and crabgrass was dead or soon to be dead. Excellent weed and crabgrass killer with a great price I highly recommend.
3 people found this helpful
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SR
4.0 out of 5 stars Not bad!
Reviewed in the United States on December 11, 2023
Style: Ready-to-SprayVerified Purchase
It didn’t fight everything like I thought it would but it’s been a nice addition to my arsenal of yard maintenance. I’ll continue to use this but I’ll be adding other chemicals as well.
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