Sue, how easy and quick this fix would be. Simply sit back and let the soil dry out, and no more fungus gnats! If that were true, there would not be a major pest problem going on with fungus gnats, but there is.
I've researched this topic for years. Tried the advice I read, sometimes more than once, thinking I hadn't done it right. Now I'm tired of the yada yada yada! Beginning with the number one yada - moist soil.
If you could see how dry my skin is right now, and my fly-away hair! The furnace barely shuts off and my whole house is dry. Including my hundreds of daylily seedlings.
I've grown plants in pots for over 40 years. Tropicals and vegetables. Inside under lights and outide during the summer. I know that the number one killer of house plants is over watering.
For every person, web site, and institution that tells you what works for management of this problem, there will be one that says it didn't work for them. They didn't work for me. So I no longer want to hear about moist soil, Hydrogen Peroxide, Cinnamon, Cedar Oil, sand, Diatomaceous Earth -
https://www.mdpi.com/2075-4450...
It has been hypothesized that physical barriers such as sand or diatomaceous earth placed on the surface of the growing medium would negatively impact fungus gnat adults when they emerge and/or prevent females from laying eggs [42]...However, it has been shown that placing diatomaceous earth or sand on the growing medium surface did not have any effect on fungus gnat adult emergence or inhibit females from laying eggs because these physical barriers contain small openings that allow larvae to pupate, and adult females to lay eggs [41,45].
pieces of flea collars on the soil, and Neem Oil. Thank you very much.
