

🚫🐜 Outsmart pests, own your yard—spray smart, live itch-free!
Black Flag Flea and Tick Killer Concentrate is a professional-grade, ready-to-spray yard treatment that covers up to 5,000 sq ft. Featuring a quickflip hose-end sprayer for easy application, it delivers up to 12 weeks of continuous flea, tick, and mosquito control by breaking the flea life cycle with active ingredients Lambda-Cyhalothrin and Pyriproxyfen. Trusted by thousands, it’s the ultimate solution for maintaining a pest-free outdoor environment.







| Active Ingredients | Lambda-Cyhalothrin,Pyriproxyfen |
| Best Sellers Rank | #2,038 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #66 in Insect & Pest Repellent Sprays |
| Brand | Black Flag |
| Customer Reviews | 4.2 out of 5 stars 9,031 Reviews |
| Item Form | Spray |
| Item Weight | 2.4 Pounds |
| Liquid Volume | 32 Fluid Ounces |
| Target Species | Insects |
S**S
It really works, seriously!
This actually works to eliminate fleas! I had tried everything prior to buying this product & nothing seemed to even put a dent in the sudden flea issue on my patio. These fleas were literally living in the cracks of the brick floor on my front porch. I don’t have an animal that would be the cause of this, so idk where this flea population suddenly came from. It was brutal, every time I was out on the porch, I was being bit on my feet & ankles. Fleas were jumping into my fuzzy slippers & I even brought 2 inside my house by accident. Over the course of a week, I tried covering the entirety of the porch with borax, which I did 2 days in a row. I then tried an essential oil based insecticide that claimed to kill fleas (it didn’t) which I used 2 days in a row. Then for the next 2 days, I covered every floor brick & the walls on the porch, with home defense. Which usually will easily kill every type of bug. All this to no avail, after 7 days & 6 separate treatments, I walked outside & had 4 fleas on my foot within a minute. So I researched & learned they can live & breed in the dirt or grime buildup between patio bricks. My porch is pretty regularly cleaned, so I didn’t think it was built up enough to foster flea eggs. Regardless, I spent 4 hrs blasting every speck of dirt out of in between the bricks, plus the walls were sprayed down. After it dried, I saturated the entire porch once again, but now with this flea & tick spray. It does have kind of a strong smell as you spray it, make sure to wear gloves & maybe a mask. The like tube between sprayer & bottle is like an inch long, so you have to carry the jug in one hand & spray with the other. Even trying to keep my distance, I must’ve breathed the overspray in my nose a bit, cause it really irritated my sinuses & caused a sneezing fit. The smell was present for a few hours after, but it wasn’t bad. After all that effort.. I was so happy, it actually worked! Between the intense cleaning & applying this spray, to every crack, every brick surface & the perimeter of the porch. I almost couldn’t even believe it. No more fleas in the last few days since using this product! I do anticipate spraying again though, probably within a week, just in case there’s any eggs still in the cracks. At the same time I ordered this spray, I also ordered these little traps that have a sticky glue sheet & a heat light above them to attract the fleas. I put those out at night, on the same day that I sprayed this, as those sticky sheets would show if there were still any living on the porch, even if not jumping on me. Luckily, I have not found any fleas in the sticky trap, just mosquitoes. Hooray for this spray! Don’t waste your time with any other products, just use this first! I wish I would’ve, it would have saved me from a dozen itchy flea bites on my ankles.
T**O
Tried the Rest...this IS the BEST!!!☝
EXCELLENT product!! We were quite SHOCKED when our "Indoor-ONLY" Kitty became infested w/ fleas! (😨YIKES!) We can only suspect that the fleas somehow entered our cozy, flea-FREE environment either by hitching a ride on the shoes/clothing of a recent visitor to our home who has pets, came in one of the many boxes or pkg deliveries we frequently receive, or one of our family members allowed a tag-along in, as they trekked thru our VERY "pet friendly" neighborhood. (That's just a 'Heads-Up' to anyone wanting to be vigilant.) At 1st we were in FULL denial when Jasmine (our kitty😻) 1st started "scratching" herself, thinking it must just be a mild case of dermatitis, or "something." Because after all, she NEVER leaves the house, so it CAN'T be fleas!! Oh, boy...how WRONG were we!!! (Consider that another 'Heads-Up!' I would suggest to just CHECK your fur baby at the VERY 1st sign of scratching/itching. DON'T make our mistake!!😰) I then noticed her scratching becoming incessant. Even to the point where she would wake from a deep sleep to SCRATCH! She even looked miserable. By the time I realized what it could possibly be, my POOR baby was infested w/ fleas!!😣 After FRANTICALLY scouring nearly EVERY website @ the internet & learning EVERYTHING there is to KNOW about FLEAS...I was ready for the "BATTLE!!!" (That's the term I hear/read ppl use all the time regarding their experience(s) with fleas. Because trust me...it IS just THAT: a full-blown "BATTLE!"😡 Lol) What I initially thought was harmless cat "dandruff" turned out to be flea EGGS! And my kitty had been shedding them everywhere in the house! (😨Yikes, again! Because I do mean EVERYWHERE!!) I headed to Amazon & LOADED my cart w/ EVERYthing & ANYthing that I thought I would need to fight this scourge of fleas! Flea & Tick: □ Shampoo, check; □ Tablets, check; □ Drops, check; □ Collar, check; □ New Vacuum Cleaner (You betcha, that's how determined I was to "WIN" this Battle! Lol) check; □ Wipes, check; □ Flea & Tick combs, check; and lastly the most important ingredient in the Recipe to kill those pesky PESTS... □ Spray!!! But, Holy Smokes...WHICH ONE?! Sooo many choices, sooo many price points!!😫 Where do I even begin?!😲 So I bought a WHOLE bunch of DIFFERENT ones: #1) Adam's: worked somewhat ok, but the smell & scent overwhelmed us, & our kitty HATED it! For the price, I thought, there could be better. #2) Hartz: GR8 price, worked relatively well. Good choice if you're needing to be extra price-conscious & need something that works. #3) Ortho (Aerosol): a bit pricey for such a small can, but does a GR8 job for hitting "hot spots" & dishing out an "instant kill!" Must use sparingly or, it'll all be gone B4 you know it! #4) Ortho (Liquid-Gal): Pretty decent job, no better or worse than the others. Didn't see any significant difference from others. #5) Black Flag Extreme Flea Killer (THIS Guy): I saved the BEST for last, because this puppy DOES the job BEST!! It incorporates the MUST-HAVE "IGR" component that helps win the "Battle" over those tiny monsters & their different "Life Stages," & you definitely NEED to catch them ALL in ALL of their various stages; adults, eggs, larvae, pupae, it has a clean scent that everyone in the house could live with, Jasmine didn't scamper off frantically at the 1st wiff of it (like she did w/ Adam's!) - in fact, she followed right behind me whilst I was spraying around the house, curious to see what I was doing - is priced quite fairly for its size (altho I noticed it went up a couple dollars from my 1st purchase to my 2nd; $11.XX to $13.XX - but that's ok👌 w/ me because it DOES WORK!👍, and it UNdoubtedly, absolutely knocked-DOWN the flea population in our humble abode, like nobody's business!!! The difference between all the other sprays & THIS guy was UNmistakable!! We noticed results almost immediately!! I can highly recommend THIS product WITHOUT ANY HESITATION!!! Needless to say...$200-$300 later I had EVERY hope that I could WIN this particular "Battle!" (Lol...I HATE losing @ ANYthing!) Knock on wood, we're about 99.9% there. (After nearly 3-4 mos of this Fight! And I'm tuckered out!😴+🤕) Yeah, I'm finding fleas...BUT, they're all DEAD fleas! (The BEST kind!😂) If you're also in the midst of a "Battle," or just beginning it, your approach has GOT to be MULTI-PRONGED!!! You CANNOT JUST give your fur baby a flea bath, or JUST put a few drops between their shoulder blades, or JUST buy them a flea collar & hope the problem goes away. (Because it WON'T!!) You MUST treat EVERYthing & EVERYwhere your 4-legged beloved one comes in contact with; Beds, Scratching Posts, Chew Toys, Favorite Blankey, etc., along w/ treating him/her. Then vacuum, Vacuum, VACUUM...like there's no tomorrow! Be VERY vigilant w/ baths, drops, buy a decent flea collar, spray liberally, etc. & watch for ANY possible ways fleas can infiltrate your home...And hopefully YOU, too, can WIN your BATTLE against those MUCH hated fleas & ticks!!! Good Luck!!! I hope my long-winded (sorry 'bout that! I had to "share" as much as I could to help YOU, the SAME way others helped ME!) dissertation proves to be of some small measure of help. Fleas & Ticks SUCK BIG TIME!!! WHO NEEDS 'EM?!!!😬 P.S. Just a ☡Cautionary Note - since I already did the Homework: Do NOT treat your pet w/ more than one treatment at a time!!! You do NOT want to overwhelm or shock their system & have them get sick. Please space your treatments, or consult your Vet for further advice. If you can't afford a Vet, check out the website: Flea Science. Terrific info & insight. (No...I'm NOT affiliated whatsoever. Just found it packed w/ exceptional knowledge.) P.P.S. If my Battle starts to falter & the remaining .01% needs to be conquered w/ something else, I've been advised that a WHOLE house "Fogging" might just do the trick! You may want to consider incorporating that in YOUR Battle. Good Luck, again! & Have a GR8 Day!!!😊
G**T
It works, in conjunction with treating the pets and vacuuming
I have found this product to be effective, and used it recently during Sept. 2024 to deal with a flea infestation that was quite bad, the kind where they are jumping on your feet & legs everywhere in the house. However, a flea infestation must be dealt with on multiple fronts. Here's what I did: first, I treated my two cats with Advantage II, which lasts for 30 days. Then I purchased a very powerful vacuum cleaner and began vacuuming the entire house thoroughly EVERY day, including furniture upholstery & emptying the canister after each use. The fleas disappeared for 2 weeks, and then suddenly reappeared. I continued vacuuming and bought the Black Flag product; I removed all small carpets from the house (trashed), mopped all vinyl floors several times, and at the 30 day point, I treated the cats again and sprayed the Black Flag on all carpets, upholstery, and baseboards. Fleas continued to jump in a few hotspots for another week and then gradually disappeared completely. The house & cats are now free of fleas for 3 weeks, and I am optimistic that I have broken the fleas' life cycle with the Black Flag product; I used 60% of the 1-gal on 1000 square feet. You don't have to saturate things with the spray--the instructions tell you to apply a fine mist on the surface. I will close by saying that I did not want to use a pesticide in my house, but there was no other way because the infestation was BAD. I used rubber gloves when applying the product, and I have also decided to always wear slippers in the house for the first few months to avoid contact with the pesticide, out of an abundance of caution. I don't think that I could have eliminated the fleas without the Black Flag, but also don't think that the Black flag would solve the problem on its own without the other things that I did. I would recommend Black Flag, but you have to put in the extra work.
Y**I
Works great for knocking down a flea infestation
The Black Flag Extreme Flea Killer Plug Growth Regulator spray worked great for knocking down a flea infestation inside. My relative does not have any pets but someone's cat kept coming into their backyard. That cat must have had a major flea infestation because the whole backyard was soon hopping with fleas that would jump on your legs (summer, so wearing shorts) and bite. And even worse, these blood sucking fleas would "hitch" a ride on your clothes so the fleas infested the inside of the house! Vacuuming several times a day was helping, but there were still tons hopping, biting, laying eggs and hatching the future blood suckers! Along with the constant vacuuming, this Black Flag spray helped to knock down the fleas substantially. Within a few days, there were noticeably less fleas (and bites!) and the visible ones were very weak. The IGR Growth Regulator in this spray probably also helped to cut down the fleas, since they couldn't mature to the egg laying life cycle, so within a month of spraying and constant vacuuming, it appears that the inside flea infestation is gone. However, the backyard still had the flea infestation which required another product purchased from Amazon which also worked well. The only problem though is that the spray attachment that comes with this product is junk and does not work! Ended up putting the Black Flag into another spray bottle so Black Flag really needs to address the issue of this useless spray attachment! So, if you have a flea infestation inside this Black Flag spray (make sure you read and follow the label directions!) is recommended along with constant vacuuming.
T**N
Great product/HORRIBLE sprayer
For the first time ever, we are having a flea infestation in our home and needed something FAST. I ordered this product due to the great reviews and the ability to purchase such a large quantity of product at a great price. Not only that, but the fact it comes with a targeted adjustable sprayer was a bonus. As soon as the product showed up at my door I got started! I followed the directions which were thorough, clear and easy to follow. Primed the pump and was on my way. This product does not have a horrible odor like I was expecting. The odor was mild enough I didn't need a mask to apply. It dried into the carpet and was safe to use on my furniture and molding. I had a better time with this than I did with the powder which clouded the room causing sneezing and a horrible taste in my throat. The downside of this product was the pump itself. While I was using it, every time I pulled the trigger to spray, a stream of this product would run down my hand and drip all over the place. I tried to reposition the hose several times to adjust the pump, but nothing worked. I had ordered 2 units of this so I tried the second one, only to have it do the same thing. I ended up having to pour the product into a different sprayer to use this product effectively. It took using this product a total of 3x (every other day for 5 days) and washing blankets, beds, dogs 2x and spraying the yard to fully rid of our flea problem. Hopefully we don't have to deal with this again. Overall, good product but horrible sprayer.
A**S
Dependable flea killer spray
I have tried different brands , but this one does work , but you must keep on spraying inside your home every day ,the smell is a little strong the first 15 minutes, but it vanishes. AND vacuum the rugs or floors , a MUST , then empty the dirt & contents into a clear plastic bag , you will see the fleas inside the bag , some dead & some still alive ,spray one squirt to kill those ,I noticed the fleas die with a wetter mist within 10 minutes.easy to apply, cost is low , I sprayed the edges of rooms heavy & the carpets medium coats , let it stay ,, then next day vacuum then respray again .
J**N
Bugs! Bugs! Bugs!
We have had a major all over the house flea infestation. I have ordered 6 gallons of this product. We used it exclusively for 2 months and finally broke down and called the exterminator to finish off the infestation. The product worked well but Our house had some areas we couldn’t reach so hence the exterminator. The smell is pleasant. The attached sprayer is awful so get something else to put the product in that sprays. I would suggest a sprayer such as used in the yard. The product contains the ingredients that is needed to kill all stages of infestation.
M**P
Absolutely Ineffective and Unsafe – Do Not Buy!
I purchased Black Flag Extreme Flea Killer Plus Growth Regulator RTU hoping it would eliminate the flea infestation in my home, but after trying THREE gallons of this product, I can confidently say it’s a complete waste of time and money. 1. Does Not Work at All I followed the instructions exactly, spraying multiple times over a few days, but it had zero effect on the fleas. I applied the first gallon thoroughly with no results, then used a second and third gallon, thinking maybe it needed multiple treatments. In the end, it didn’t kill a single flea. This product is completely ineffective, and the fleas were as bad as ever. 2. Misleading Claims The product advertises itself as an extreme flea killer with a growth regulator, but it does nothing of the sort. I was hoping this would be a long-term solution, but the fleas remained unaffected. Compared to other flea treatments I've used, this one fails in every aspect. 3. Unsafe and Hazardous Not only did this product not work, but it also caused me significant discomfort. After spraying, I experienced nausea and headaches for three days straight. Despite its claims, this product is NOT safe to use, and I was extremely concerned for my health. For something that didn’t even solve the problem, this health risk is unacceptable. 4. Had to Buy a Different Product After wasting time and money on this ineffective product, I finally gave up and went to Home Depot, where I bought a different flea treatment. The new product worked perfectly and got rid of the fleas almost immediately, making me realize just how poor the Black Flag spray is in comparison. 5. Final Verdict – Avoid at All Costs I would strongly advise anyone dealing with fleas to avoid this product entirely. It’s a complete waste of money, doesn’t work, and can even cause health issues. I spent days battling not just fleas, but also nausea and headaches, all for a product that did nothing to solve the problem. Save yourself the trouble and find a more reliable solution elsewhere. Black Flag Extreme Flea Killer is one of the worst products I’ve ever used
Trustpilot
3 days ago
1 month ago