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Gardening

Find tips and tricks to make your garden or allotment flourish on our Gardening forum.

Small flies around houseplants

16 replies

Touty · 13/02/2025 23:24

How do I get rid of them?

OP posts:
Geneticsbunny · 14/02/2025 08:50

Only water the plants from the bottom and they will all die off

AlwaysGardening · 14/02/2025 08:52

They are sciarid flies or fungus gnats. They love damp conditions so easing off the watering can help as can top dressing pots in fine gravel.

MereDintofPandiculation · 14/02/2025 09:31

The problem is not the flies, it’s that each of those flies has morphed from a larva in the soil which has been busy eating the plant roots. So it’s important to break the cycle

CaptBirdsEar · 14/02/2025 09:35

Buy a carnivorous plant

Pashazade · 14/02/2025 10:15

You need Nematodes. They will deal with them! Mix into water, water plants, wait a few days. Job done.

Breadcat24 · 16/02/2025 07:53

can you recommend a type/source of nematodes please one of my lemon trees is suffering badly and spraying has not fixed it

lochmaree · 16/02/2025 07:56

For my houseplants I gave the pots a gravel topping and then sprinkled diatomaceous earth on the gravel, I only bottom water, and I have a few of the sticky things.

Lookingforwardto2025 · 16/02/2025 07:59

We had the same. I put gravel on top of all the houseplants and they are now all gone.

ThirdStorm · 16/02/2025 08:00

I found they sorted themselves out when I stopped over watering my plans.

CharnwoodFire · 16/02/2025 08:00

Change their soil, let them dry off for a few days, and cover the soil in cinnamon

LoveSeptember · 16/02/2025 08:06

ThirdStorm · 16/02/2025 08:00

I found they sorted themselves out when I stopped over watering my plans.

I found the same. I bought a moisture monitor sensor of from amazon and keep the soil at the very bottom end of moist and the flies disappeared.

ThimbleT · 16/02/2025 08:08

Agree with the nematodes recommended above, bought mine off EBay,

Pashazade · 16/02/2025 08:49

@Breadcat24 It was these from Amazon. Worked a treat.

https://www.amazon.co.uk/gp/product/B004R2GQ2S/ref=ppxyoodtbbsearchasinn_title?ie=UTF8&psc=1

Owmyelbow · 16/02/2025 10:27

You need a combination of nematodes (to get the larvae) and yellow sticky traps (to get the adults)

Changingplace · 16/02/2025 12:45

CharnwoodFire · 16/02/2025 08:00

Change their soil, let them dry off for a few days, and cover the soil in cinnamon

This, cinnamon has sorted mine out completely.

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