Black Flag 190255 Fogging Insecticide Review

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Black Flag 190255 Fogging insecticide

Main features

  • Odorless
  • Lasts up to 6 hours
  • Ready to use
  • 32 oz. capacity
  • Made in the US


Black Flag is a company that has been fighting insects and pests since 1833 and is still doing it efficiently and effectively. They provide solutions to many crawling, flying and stinging insects from ticks and spiders to mosquitoes and flies to wasps and even scorpions. In their products they use the minimum amount of active ingredients that are lethal to insects, making their product safe for people and pets, but not to the targeted insects.


One of the most popular fogger insecticides is this Black Flag fogging insecticide that is designed as a solution to the mosquito problem. It contains d-phenothrin, a synthetic pyrethroid, which means that this insecticide consists of components that, once dried, aren’t harmful to us or our pets.

The odorless liquid will turn into an odorless fog that leaves no traces of itself, just an area where there aren’t any mosquitoes. The estimated working time from just one fogging is up to 6 hours, however, with repeated fogging, you can increase this time to days without mosquitoes. When producing this insecticide Black Flag used the latest technology resulting in an insecticide that is very efficient, and kills only the intended targets.

Compatibility with foggers

Although this insecticide is designed especially for Black Flag and Burgess brand foggers, it can be used with any other mosquito fogger too, as long as it is thermal fogger – propane or electric fogger.

On what to use

The insecticide is created to specially target mosquitoes, however, it will also be efficient on flies, gnats, biting flies, biting midges as well as hornets, wasps, and other similar flying insects.

Where to use

This insecticide is meant for mainly outside use. With it you will be able to fog backyards, outdoors pools, parks, camping grounds, barns, patios, children playgrounds, areas for special events, and any other outdoors space, because the fog that any thermal fogger will create from this insecticide will dissolve quickly, leaving no residue, just mosquito-free space for you to enjoy.

Click Here for Price & More Info of Black Flag 190255 Fogging insecticide

How to use

The use of this insecticide is simple. There is no need to mix it with other liquids or shake it. Just open the insecticide bottle and pour it into either propane or electric fogger. Afterward, make sure to tightly fasten the cap on the insecticide bottle and you can start fogging the outdoors area of your choice.


James Smith

Will Black Flag and Cutter propane fogger kill ticks and mites ?


I would like to know if it harms hiney bees?


    This product is toxic to aquatic organisms, including fish and invertebrates, however, the label of it doesn’t mention it being toxic to bees. However, I would still use caution when using this product around honey bees.

    Chuck Gammill

    I just pulled up a Material Safety Data Sheet for Black Flag Fogging Insecticide prepared in 2008. It lists the active ingredient as d-Phenothrin (SUMITHRIN), which according to an article on, is extremely toxic to bees.

Michael Worden

Will it harm reptiles, like lizards, geckos, frogs?


    Hi Michael,
    It is possible, since the product does say that it is harmful to aquatic organisms as well as harmful to humans if absorbed though skin or swallowed.

    Michael Worden

    Thanks Karen. That’s what I was afraid would be the answer. I will probably do a combination of clean up, standing water checks, (including neighbors) along with timing when I am out, what l wear and using combinations of essential oils and sprays.


I sprayed a little of black flag over a raised garden bed, did I contaminate my garden ,is it safe to plant veggies ,please comment


    The manufacturer advises against using this product directly on or around anything that is edible. So I wouldn’t plant veggies in the raised garden bed that has been sprayed with Black Flag fogging insecticide.


My neighbor intends to fog his backyard and I’m afraid it will kill my 3 hives that are 8′ away from his fence. Is this product a viable threat to my bees?


    If your bees actively visit the area your neighbor is intending to treat, it could hurt your bees. So I would suggest you talk them out of using the product so close to your hives.


Is there a product to use in my propane heated black flag fogger that will kill spiders and ants?


    You can try using the BP 300 Fogging Chemical since it is formulated to also target ants and spiders and can be used with propane thermal fogger.

Eduard Emil

On a still windless night, I turned on an outside porch light at night and the mosquitoes flocked to it by the thousands. Then I dispensed a thick cloud of Black Flag fog around the light steadily for at least five minutes. It had absolutely no effect on the mosquitoes or any other bugs that were attracted to the light! This was a waste of money!


    Some people, like you, claim that this product doesn’t work. While others sware by the Black Flag insecticide. I believe that its effectiveness greatly depends on how you use the product since the fogger needs to be at a very specific temperature for the insecticide fog to be able to do its job.


    Is it safe to use this insecticide in a factory enviroment and do the fogging application while people are inside the factory.


    No, it shouldn’t be applied while people are in the area. After the treatment, people shouldn’t re-enter the area until the treatment has dried. The product shouldn’t be inhaled. It can also cause eye irritation.

Milton Dailey

I used the Black Flag Fogger for weeks now, spent a lot of money on the product, can’t tell if it works. If it does kill mosquito’s, hundreds come to the funeral. All joking aside, it does not work as far as I can see, or I have a hell of a lot of them!


    It might be that they are breeding somewhere near your area and therefore you can’t seem to get rid of them. If that’s the case I’d advise you to use a larvacide like Mosquito Dunks, for example, to kill the larvae as well which will prevent more mosquitoes from maturing and bothering you. The other thing is that this Black Flag fogging insecticide works for only around 6 hours which means that the mosquitoes have plenty of time to reinfest your area during the rest of the day. So, you might want to look into a more potent insecticide to use for a longer lasting effect.


I live in the south, have 2 little kids and have have been going out each evening at 5 when the wind stops to fog the backyard with black flag. I hit mainly all of the bushes but also anything the mosquitos can get under like shed, trampoline, treehouse, ect. then lighting tiki bitefighter torches and using a thermo-cell as a deterrent while we’re outside. This has yielded perfect results with no mosquitos for about 4-5 hours. I’ve tried to skip fogging a night here and there but We’re swatting them and getting bit each time.
It’s obvious that the fog kills mosquitos it touches to buy you a few hours but they just travel from nearby yards. However, the torches and thermo-cell seem to stop that well.
Totally worth it in my opinion in order to avoid bites on the kids and adults swatting at mosquitos all evening.


Can you use a stronger pyrethrum chemical with this fogger? I understand any warranty on the sprayer would be invalidated, but wondered if this sprayer could handle a farm-grade rate of pyrethrum.


    The Manufacturer doesn’t recommend using any other chemicals other than the Black Flag, Cutter or Repel branded fogging insecticides with the Black Flag 190095 fogger as other fogging liquids might damage the fogger or even endanger your health and safety.

Lian Christenson

I have chickens that I left out each day . They run around under the deck. I’m wondering if it would harm them since they eat grass where I would use the insect foggier?


    Unfortunately, I don’t know. The label also doesn’t specifically mention it. Just to be safe, I would go for something chicken-safe.


If I spray this into a big pine tree that also has bird in all the time will it hurt them if they have a nest in there? Will it also hurt them if they go into the tree after I spray? Thank you.


    Unfortunately, I’m not sure about the birds specifically. However, the label does specify that pets need to be removed from the area before you start spraying. And that they shouldn’t re-enter before the product has dried. I would assume the same goes for birds as well.

Mark R

I have been using this foggier in San Antonio since May 2019 and it has been very effective in killing (or repelling) the mosquitos.

However, it is not a one time and done application. I fog at least twice an evening, around 6:00p and again at 8:00p, spraying around and into the scrubbers, vines on the wall, and around and inside our covered patio. Once I started the program, I noticed a great improvement over the other methods we are using ( and continue to use) to supplement the fogger; a blue-light trap, a propane generator, and Mosquito Nix system (which does not seem effective).

My conclusion is that only one system will not work, each has its own particular strength and that one has to use multiple systems….. the end result is, with some effort, I am controlling the mosquito and fly problem and everyone is happy, even my mother-in-law.

Sandy Sands

Would this work for cluster flies? We are having a wedding next June and I want to spray this fall in preparation if it would help.


    Yes, the product works on flies. However, did you mean trying it out this fall, or fogging in hopes the effect will last until the wedding? Just in case, I’d like to mention that fogging this fall won’t give you much protection for the next June, since the effect only lasts up to 6 hours.


Would it also kill fire flies?


    The label doesn’t mention fireflies, so it’s hard to say. However, I think it won’t really cause them much harm. Still, if possible, it wouldn’t hurt to avoid areas where fireflies are often present.


Is Black Flag fog insecticide still available in Canada? I have about 1 tanks worth left for my propane fogger and would like to get some more. Also I would like to say that for me, it works. At least until it rains. I’ve gone at least 4-5 days without any mosquitoes after a fogging. I get two gmfiggings per refill of the fogger which is pretty good. But I can’t find any at the store and I heard it was banned in Canada. Can i still get this stuff here? Or something similar. Its called Black Flag fog insecticide. It comes in a black jug.


    Unfortunately, we don’t have information on whether or not they’re available in Cannada. You can try buying it on the internet.

Kevin Buster Sager

Will black flag fogger kill aphids in my pecan tree if I fog the tree I believe they are the yellow aphids.


    The product isn’t labeled for aphids specifically. Take a look in our article about getting rid of aphids for advice on fighting these pests.


will black flag fogging liquid freeze?


    The label doesn’t specifically mention it, so it’s hard to say. Some pesticides will lose some of the effectiveness, while others will be good to use.

Bill Terry

When fogging should I be wearing some type of protective mask to keep from breathing in any fog


    Yes, it is suggested. As well as goggles and gloves, if possible.

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