Ever see a swarm of little black flying gnats around your precious produce? Just give the branches shake and see if a swarm of these pesky insects appear. If so… you have fungus gnats!
These gnats infest the growing medium and their larvae eat the plants roots. Plants loose vigor and the leaves turn pale, but the plants won't actually die.
Tiny grey or black flies with long legs and antennae, flying aimlessly around your plants. You will also find them in the growing medium, and possibly even swarming around your nutrient vat. Fungus gnats like damp, decaying organic matter.
TREATING LIGHT INFESTATION
You can try sucking up many of the annoying little buggars with a vacumm nozzle, but this is not a permanent solution; try Yellow Sticky Traps, too.
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Parasitic nematodes or predatory mites
Drench the medium with insecticidal soap or Neem Oil.
Use Go Gnats specifically to treat fungus gnats, it can be added to the reservoir; follow directions carefully.
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