Photo by Melody

Fungus Gnat (Mycetophila fungorum)

Order: Diptera (DIP-ter-a) (Info)
Family: Mycetophilidae
Genus: Mycetophila
Species: fungorum


No positives
No neutrals
1 negative


This bug has been reportedly found in the following regions:

Dewey, Arizona
Fort Bragg, California
De Land, Florida
Gulf Gate Estates, Florida
Mary Esther, Florida
Vandalia, Illinois
Columbia, Missouri
St Joseph, Missouri
Dayton, Nevada
Spring, Texas
Short Pump, Virginia

By wallaby1
Thumbnail #1 of Fungus Gnat (Mycetophila fungorum) by wallaby1

Member Notes:

Negative LineyLou On Jun 4, 2009, LineyLou from Sarasota, FL wrote:

These things can be incredibly destructive; I grow rare & heirloom fragrant plants & watched helplessly while the larvae selectively slagged my most irreplaceable plants. I had applied predatory nematodes as a preventative ; since I did not lose everything, they may have helped. I applied a BT drench yesterday,& am applying a diatomaceous earth barrier today;then I will spray Neem oil everywhere,(& pray).
I was told predatory mites(Hypoaspis sp.??) were better than nematodes at fungus gnat control,& will try that too. Can anyone tell me how much diatomacous earth I need to mix into my potting soil to make it hostile to gnat larvae?? Not just as a barrier; I'd like to incorporate enough into the soil to permanently check any future invasions.

Timer: 7.27 jiffies (0.072679042816162).

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