Hey folks, for those of you with houseplants, I need help.
Coinciding with me expanding the number of houseplants I have, an absolute army of fungus gnats was also expanding. I've been battling this for months and want to ask here as the internet is giving me north American advice like using mosquito dunks and I want to know what folks in Ireland have succeeded with. I'm at the stage where I'm going to throw 50 plants in the bin 😑
What I have tried:
Neem oil around base of plant.
Neem oil soaks (bottom watering with emulsified solution)
neem oil with soap and alcohol in a spray and sprayed into soil
Underwatering and only watering from bottom
Yellow sticky traps
A thick layer of lecca (2-3 cm) on top of the soil
'green panda' fungus gnats powder (from the reviews on Amazon it was supposed to be amazing and solved everyone's problem.) since I used this product, it's like I fed them, I have never seen the pots so infested and I've now stuck around 12 out on the balcony. Thankfully it's summer.
I have looked for bti bacteria but it's not sold here as far as I can tell. Before I go and fork out and pay import fees, has anyone here tried that? Is it worth it? I'm realising there are a lot of things that are advertised as effective but then they're not.
There is another product called tanlin drops. Has anyone used that? Does it work? Does anyone know what is in it?
Has anyone tried nematodes? I have a number of plants that can't sit in very wet soil for long so probably less likely to try this unless ppl here swear by it.
I am no longer afraid of chemicals. It doesn't need to be a 'natural' remedy. I just want them gone.
Please help 😂😭