--- title: "HELP. How to get rid of fungus gnats? I tried EVERYTHING" description: "HELP. How to get rid of fungus gnats? I tried EVERYTHING" url: "https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/y8NB97FM0wy6P4mSaKuXYJ?language=ja" community: "Pests, diseases and problems" author: "Geo" published: "2025-05-13T00:13:47.211599Z" language: "en" image: "https://images.getplanta.com/v2/cloudinary/global_data/communities/pestsDiseasesAndProblems.jpg" --- [コミュニティ](https://getplanta.com/community.md?language=ja) / [Pests, diseases and problems](https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ.md?language=ja) # HELP. How to get rid of fungus gnats? I tried EVERYTHING _Geoさんが2025-05-13に投稿しました_ HELP. How to get rid of fungus gnats? I tried EVERYTHING ## 22件のコメント ### Springvisionさんが2025-05-13にコメントしました Other than mosquito bits, the only other thing that worked for me was taking the plant out of the pot getting all the soil off washing the plant really well and planting in all new soil. That took care of it... for a while anyway. 🫤 They are precocious little buggers. #### exitJiraffeさんが2025-05-13に返信しました I second this. Repotting with fresh soil and sticky traps to get rid of any lingering stuff. I’ve also sprayed roots with hydrogen peroxide before repotting, but that can be a little risky. The only 100% effective method I’ve tried is repotting with new soil. A lot of work, but it’s super worth it not to have flies buzzing about. ### Geoさんが2025-05-13にコメントしました Uugh they’re so annoying :( I did repot most of my plants but they keep coming back ### Amie206さんが2025-05-13にコメントしました Death drops. Also letting your plants dry out more in between watering #### Geoさんが2025-05-13に返信しました Where can I find that product? Just looked it up on amazon and found a spray #### Amie206さんが2025-05-13に返信しました Happy Happy Houseplant sells it. You add it to the water. Mosquitoe bits also work, but I found those were more susceptible to growing moldy ### Wolfen 🐺さんが2025-05-13にコメントしました Microbiolift drops for ponds in every watering. Same stuff BTi that's in mosquito bits ### Sorbeさんが2025-05-13にコメントしました Aside from the sticky traps I’ve tried 2/3 water to 1/3 isopropyl alcohol and mist it on your plants and the soil. Tried it a couple of days ago for my plants and it seemed to have worked. I added a bit more water to alcohol ratio because I didn’t wanna harm my plants and the gnats have gone down in amount. Alternating that with cinnamon seems to have worked well! ### alexkazam19さんが2025-05-13にコメントしました I let my plant dry out almost completely, repotted with more drainage, and topped with pine mulch. I haven’t had any problems since #### Geoさんが2025-05-13に返信しました I tried that, they’ll come in from the bottom AND they live even in the plants that have dry soil. And my soil is well draining :( #### alexkazam19さんが2025-05-13に返信しました 😭 Dang, hopefully you have more success with these other suggestions. Good luck, friend 🍀 #### Geoさんが2025-05-13に返信しました Thank you friend 😭🤍 #### Victoria Maddisonさんが2025-05-14に返信しました Dang, what kinda hulk fungus gnats are they? 😭 sending gnat-free vibes your way ### MicAZさんが2025-05-13にコメントしました Repotting and bottom watering has been my best fix. Still see them sometimes though 😩 #### Geoさんが2025-05-13に返信しました I tried that too. They just get in the bottom🤡😭 ### Plant Dog Momさんが2025-05-13にコメントしました You can use cinnamon powder on the soil. I unfortunately can’t post a link here but if you go to YouTube. Search for…how I eliminated fungus gnats on my houseplants by Sheffield Made Plants. I found this helpful. Good luck!! 🙏🏽 ### Bbさんが2025-05-13にコメントしました Hi there, I use yellow sticky traps to trap the adults fungus gnats and to get rid of the larvae, water with a larvicide called Vectobac. It’s a bacteria that you add to the water, watering once in week one then once a week later and that’s it. ### Bbさんが2025-05-13にコメントしました Oh also to deal with the larvae you can use beneficial nematodes. I haven’t tried that option as the bacterial larvicide was easier to source where I am. [コメントをもっと見る](https://getplanta.com/community/lKxUkhzRR_aIJD7o1QvtwQ/y8NB97FM0wy6P4mSaKuXYJ.md?cursor=mPtVN4IFPxhQb3N0cy5HZXRBbGwAAAAAAAAAAAAAAAD5SUqyf4rcGA&language=ja) --- _Plantaコミュニティ (https://getplanta.com)。閲覧はどなたでも可能です。投稿、コメント、いいねをするには、Plantaアプリをダウンロードしてください: https://getplanta.com/download_