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Getting Rid of Gnats in a Litter Box

Category Gnats
Gnats seem to thrive in our homes in a wide variety of situations. This is a guide about getting rid of gnats in a litter box.


Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.

0 found this helpful
October 4, 2016

I have two cats, both are females (one white and one black) and they have their own litter boxes. Both boxes are about two feet from each other. I clean each litter box once a week with bleach. I recently started doing this because fruit flies have been coming out of only one litter box, and it's the white cat's litter box. They both eat the same type of food. Why are they only coming out of hers and not the other's?

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January 29, 20170 found this helpful

First, are you sure that only one cat uses that litter box? If so, you might want to take her to the vet. Believe it or not, this might be a sign of diabetes or kidney troubles. When insects start being attracted to something in the urine, this is not a good sign. It can mean excess sugar in the urine.

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March 1, 20170 found this helpful

You can hang fly strips by the litter box

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August 30, 20040 found this helpful

Please help! Our kitten eats Iams food for kittens and it seems that there are little gnats coming out of his litter box. Does anyone know what causes this? - Ana

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September 27, 20070 found this helpful

I have been struggling with the same issues. I did initially clean out the box but my down fall was that I placed the clean box back in the same spot. Yes, it got reinfested. This litter box was in the bathroom, in a dark corner. It seems that these "gnats" tend to like dark areas a lot. Thanks for all the suggestions and info, even from 2004.

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October 9, 20070 found this helpful

SOLUTION: My problem started a short time after I started using a "crystals" type litter. After reading a post here that said they used Fresh Step Scoopable and never had a problem, I decided to give it a try. I emptied the litter box, washed it out, and refilled it with Fresh Step Scoopable. I left my dish with "apple cider vinegar with a dab of liquid dish soap" on the counter to catch the last of the renegade gnats, for a day, but it has been two days now, and no more gnats. Hurray!

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October 10, 20070 found this helpful

Does anyone know what the egg of a gnat looks like?

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November 11, 20070 found this helpful

Would these bugs be biting the cat? I think we have them and I think they are biting our cat!

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February 12, 20080 found this helpful

Are they coming from worms in the cat poops in the litter box? Do we need to treat the cats for worms?

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August 17, 20080 found this helpful

Not sure if this is the problem. These bugs fly around only one at a time, they are black with white wings, very very small in size. But seem to like the garbage can as well.

they also fly to the light like any bug, and like food. Can't seem to see anything coming out of the litter box per say. They are almost the size of a flea. They could be fruit flies, could someone find a solution and a product to kill whatever is infesting the house?

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November 15, 20080 found this helpful

For some reason all of a sudden gnats have been spotted n my bathroom around my plants. I don't know where they could have come from. It can't be my plants because they were here before i even started to plant my plants. They showed up in my bathroom one day. It was about 5 of them and I killed them but they just kept showing up. Are they coming inside my house just because it is getting cold outside?

In my kitchen they just started to show up. I noticed them about a week 2 weeks ago. How do i get rid of them. I need to know before thanksgiving comes because i don't want them to be all over my food. The problem started off in my bathroom and has spread. Those little bugs are such annoying pests.I need remedies now! Quick. Please.

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November 15, 20080 found this helpful

The vinegar trick seems to be working. what are some other tricks.

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November 25, 20080 found this helpful

I have been having the same problem with my litter box I clean it and they reinfest. They get into my compost, kitchen sink etc like fruit flies but they seem to be too big to be fruit flies as some people have suggested,are much more annoying and I really think they are biting my cats and dog also. I havent found a definite solution yet but since it is winter here I have been opening the windows and freezing them out which is helping but so far not a solution. I put my cats litter outside today and hope that will kill off any remaining ones. I did not have this problem when I used different litter but since switching back to regular cat litter they have appeared. I will try changing the kind of litter, putting the kitchen compost outside and write back with any results.

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February 23, 20091 found this helpful

I recently found a stray cat and DO NOT have a litter box, it uses the tub in the bathroom and there are ALWAYS gnats. I have to believe that it is coming from within it's feces and has absolutely NOTHING to do with kitty litter.

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0 found this helpful
February 5, 2011

I have 3 cats and 2 large litter boxes for them and I am having a huge gnat or fruit fly problem. I keep the litters clean and get rid of everything the bugs would like, but they are still here. I want to get rid of the bugs, but not the cats. The bugs have been here since the last summer began and no doubt will be twice as bad when summer comes again. Please help! They are so annoying.

By Carolyn

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February 7, 20110 found this helpful

Put 1 cup of apple cider vinegar in a plastic cup, then two drops of dish washing liquid (cheap is fine, too) to break up the surface adhesion. The bugs will dive in and drown. This is the cheapest and easiest way to keep them at bay.

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February 7, 20110 found this helpful

Chances are you aren't cleaning the litter box often enough. What kind of litter are you using? I suggest the clumping kind. If you aren't currently using that you will be happier using the clumping so you can scoop both the urine and the poopie once or twice a day and put in a used veggie bag or grocery bag to dispose of. It's so much easier and will keep those bugs away. If you buy store brand clumping litter it's a lot cheaper than name brand. Even then you might think the cost is outrageous but it's really not because you're not having to throw out all of the urine soaked regular litter, only the clumps. Be sure to clean and dry the litter box thoroughly before putting the new litter in.

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February 8, 20111 found this helpful

I have always used balsamic vinegar in a small bowl, cover tightly with plastic wrap and with a fork poke little holes in plastic wrap. The little buggers will get in and drown. I use this when fruit flies come out. Works wonders. Jenwa

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February 14, 20110 found this helpful

I had 2 cats and one lived to be 18 years old. I never ever had your problem. I am guessing it's either in the cat's diet (bugs must be liking something in there), or else it's something in the litter. I only used Scoop Away. Loved it.

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November 6, 20160 found this helpful

I do this and I clean the litter out every day at least once.

I hate the clumping stuff but use it.

the little bitty fruit flies are still there, thanks anyway.

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February 5, 20110 found this helpful

I have a gnat problem in my litter box. I just recently bought a Litter Maid. The waste bin is filled with gnats. I did not have this problem before I got the new box. I change the waste bin everyday trying to get control on the gnats, but they are taking over my house. What can I do to get rid of them without hurting my cats? Is there a spray or something I can use to get rid of them?

Rhonda from TN


Getting Rid Gnats In Litterbox

It's more likely fruit flies than gnats. They're tiny and there are two types. But gnats can happen, too. If they're slightly fat, but still tiny, definitely fruit flies (if they're at all longer than wide).

For fruit flies, the best thing i've ever found you can buy at a hardware store (Sears is the best place for them). It's a sticky trap that is short (about 8 inches tall) and wide (about 6 inches wide), yellow, with four "lobes" of sticky stuff. Hang that up, put a piece of cantaloupe, peach, jam, or something sweet on each little "shelf" between the sticky bits. (Google "EZ Trap). Put it up where your cats can't get to it and where you won't bonk your head on it.

Another alternative, is wine-bottle or milk-carton traps. You can try various things (cider vinegar, a bit of wine, mayonnaise, ketchup) inside a wine bottle or milk carton. You can even leave a little milk in there, they love that, the nasty things. Then put a paper funnel (like you get at a gas station for doing your oil) in the top. Flies get in, can't get out. Just toss when you're done.

We haven't had as much luck with that as the EZ-trap and we've tried a lot of different things, including other sticky traps. It's definitely the best.

Switch the bait out, see what draws them. They're eating and drinking the moisture and nutrients in the cat box and even the little bit in the wastebin. Fruitflies can literally live for a short time on just alcohol fumes, so it's hard to get rid of them. Also take all used litter and tempting (to them) trash outside in a sealed plastic bag immediately for a while. That helps. Good luck! (09/10/2007)

By threehorses

Getting Rid Gnats In Litterbox

I have the same automatic cat box and never had any gnats, what kind of kitty litter do you use? How many cats use the box? I use Fresh Step kitty litter and I have 4 cats using my one box. I line the dumping tray with a plastic grocery bag and when I come home after working all day I just toss the bag outside in the trash. I replace the bag and add more litter. I also vacuum under and around cat box twice a week. I clean out the whole cat box once a month. I hope this helps you out. (09/12/2007)

By candleglows

Getting Rid Gnats In Litterbox has a multitude of hints and solutions for getting rid of everything from gnats, to flies, to yellow jackets. Check this out, I'll bet it will solve your problem. (09/13/2007)

By Lori

Getting Rid Gnats In Litterbox

I know me and my soap water, but it does work for a lot of things. I just had fruit flies for a little while, when I brought in my onions after I thought they was dry. I did end up with fruit flies because some of them was not dry and started to rot. I just spayed them with soap water and you see them drop to the floor. (09/13/2007)

By Joyce wis

Getting Rid Gnats In Litterbox

They may not be fruit flies, but a different type of fly called Phorid flies. They breed in places with dead or decaying organic matter (sinks, garbage disposals, trash cans, litter boxes, etc.). Use a foaming drain cleaner or bleach or a strong cleaning agent to get rid of them. (11/24/2008)

By Amy

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