Re: [Aroid-l] Fungus gnats

Skip,
 
No argument here that these are definatley a nuisance.  It is in my experience that fungus gnat larva can potentially damage the small root hairs on plants.  They mostly feed on organic matter and this may include at times roots of the plants in the soil too.  I have seen some heavy fungus gnat infections lead to an overall decline in plant health and vigor.  These infections were also associated with elevated levels of soil water saturation and that can contribute to root - further fueling the infestation. 
 
Ryan Wachtl
Student
University of Wisconsin-Green Bay
Plant Biology-Human Biology
     

----- Original Message ----
From: Skip Hanson <shanson@emc.com>
To: aroid-l@gizmoworks.com
Sent: Friday, April 27, 2007 11:27:53 AM
Subject: [Aroid-l] Fungus gnats

All,
  Good morning. Does anyone out there have an opinion on whether fungus gnats
 are damaging or just a nuisance ? There seems to be conflicting information.
 
  They seem to be fairly easy to control but they never seem to go away totally and
 of course I can't see the larva so it's hard to tell how bad an infestation is.
 
Thanks,
Skip
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