If you have well established strong plants you can let dry out a bit you might be alright. Personally I wouldn't use peroxide now, I have used it in the past and sometimes it can help kill them but it doesn't always get them all as if they are flying around they can come back, but your oxidising everything so you lose lots of beneficial things in the process from nutrients to bacteria. I still think mosquito bits are still the best, nematodes are also good but pricey dry top dressings are good but not always adequate.. My friend just used to get them drunk on molasses definitely stopped them flying around 😆
Discussion
I've seen decent results with peroxide outdoors, but my house plants have generally stayed bug free. I'm always reluctant of new products 😅
Yeah it wont be as bad to apply it outdoors, things can return to equilibrium, biology and nutrients can creep in again and cycle more easily. I don't even care about fungus gnats outside things eat them or the wind messes up their ability to fly and reproduce but indoors they can be a pain.
Amazed you have had bug free all this time. Perhaps it's because some of the plants in the house I don't initially grow could be part of the issue too. If the plant is healthy enough it should naturally shun the pests, but some pests are still harder to shun that others!
My only previous house plant with dual residency is a rosemary. That might be why I've never had a problem.
Hoe much sarcasm does 💖 imply? More? Less? Both genuine & sarcastic? Lol
Also peroxide is made by fungi so its great if you use it when you are only growing mushrooms I would use it then. I need to check mine 🍄 🙂
I just found the sparkly heart emoji 💖 😆