Help needed on killing flies

[guosheng wu]

Once you've got serious problem like this, it is hard to control,
especially larves in soil.

But try to use Pestrap (http://www.hummert.com/catalog.asp?P=13861).

In addition:
1. clean every thing out of chamber when you finish experiment and keep
empty in 40 degree, low humidity for 4-5 days.
2. make sure to close the door tightly every time to keep flies getting
into chamber.

hope these work for you



On 10 Apr 2001, Junjie Li wrote:

>  Hi,
>
>  We met a serious problem in our lab about the growth chamber. There are
>  quite a lot of flies called Fungus Gnats which fed on the arabidopsis
>  leaves. At the beginning, we used gnatrol in the water for planting to try
>  to control it, but it turned out not to work. The greenhouse manager
>  suggested to spray some insecticide called olympic insecticidal soap to
>  plants. But he don't know which dosage is effective but safe for
>  arabidopsis(not hurt plant). Could anybody have some knowledge about this
>  and kindly give us some suggestions?
>
>  Thanks
>
>  Sincerely yours,
>  Junjie
>
>
>
>
>  ---
>
>

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