Gnats and fruit flies in Wheatgrass tray

[Phlytrap]

I have found that gnats and fruit flies really like to live in the fresh, moist environment I have provided them with. I do rinse off my grass before juicing, and I do realize this doesn't entirely remove the pests, but who hasn't eaten a gnat or two in their lifetime?
Anywho, it is very inconvenient and kind of grosses out my mother and sister... Any tips to prevent fruit flies without harming the grass or altering the taste?

[kathrinbourne]

Well what I read on another forum for wheatgrass was to use a little bit of apple cider vinegar in a bottle and make a small paper funnel and stick that in the bottle so that the gnats are attracted to the ACV smell and go into the bottle but then cant fly out.

So I tried it and it worked...the gnats seem to be magnetically drawn to the ACV so just put a little in a bottle near your grass and bye bye gnats!

[Purakane]

What you do is fill a glass with left over beer, about 1-2". Then add a tiny splash of dish soap and stir. Then cover with plastic wrap and poke 6 tiny holes for them to fit through. We used this at my resturaunt's bar and had a cup with over 50 fruit flies in 3 days.

The soap breaks the water tension so they drown instead of being able to walk on the beer.

You use beer because of the strong smell to attract them, just like catching rats with peanut butter,.

Use a glass so you can see the results clearly.