African Violets and Gesneriads forum→Fungal Gnats... can't get rid of them.

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Name: Kyle
Laurel Canyon, Los Angeles, CA (Zone 10b)
Sunset Zone 21/23
May 25, 2020 12:11 PM CST
Hi all! My girlfriend was gifted an African Violet and this is our first foray into raising one. It's been doing really well.

And then we transplanted it into a 2-3x larger, clay azalea pot and it seems to have slowed down a bit. On top of that, there has been a long infestation of what I believe are fungal gnats.

I sprayed the soil and leaves with a solution of dish soap (Ecos brand, biodegradable) and water, but no luck.

It's currently living life on the ledge of an east facing window in Zone 10. The north facing window is actually a bit less bright.

Any thoughts?

Thumb of 2020-05-25/Globalksp/bb2745

Name: Joseph
Delaware USA (Zone 7a)
Morning Glories Brugmansias Annuals Region: United States of America Plant and/or Seed Trader Garden Photography
Container Gardener Composter Salvias Region: Delaware Adeniums Vermiculture
Jun 29, 2020 9:03 AM CST
You could try removing about 1/4" of soil media and replacing with fine sand. The sand will prevent the flies from emerging from the soil. The adults currently flying around will die in a week or 2. You would have to water from the bottom or use a wick system.

Aug 25, 2020 10:36 PM CST
FIrst of all that pot is way too big for your violet. Violets should be in pots no bigger than 1/3 the size of the plant (measured across the plant from leaf to leaf). This is the reason your violet has "slowed down". It's busy trying to grow its leaves to reach the sides of this enormous pot. Until the roots are large enough you won't see much or any top growth, and you most likely won't see any flowers. African violets like to be a bit pot bound, and it's when they bloom best. That pot holds too much water for the size of the roots, and you also run the risk of root rot. Fungal knats love moisture, repotting into a much smaller pot may solve your knat problem. One of the main causes of knats is a too wet pot. I hope this helps.
Name: Luda
Seattle WA (Zone 8b)
Oct 14, 2020 12:48 AM CST
The pot is huge. I agree.
For gnats - there are gnat sticks. It works like glue tape for flies. It is yellow and gnats probably attracted to this color. You just insert the stick in the pot and that's it!

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