Re: [Aroid-l] Spider Mites

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From:  "Michael Marcotrigiano" <mmarcotr@email.smith.edu>
Reply-To:  Discussion of aroids <aroid-l@gizmoworks.com>
To:  "Aroid-L" <aroid-l@gizmoworks.com>
Subject:  Re: [Aroid-l] Spider Mites
Date:  Wed, 25 Apr 2007 16:00:53 -0400
>They like low humidity. That is one of the main reasons they build up.
>There are chemical miticides if he is not the "organic" type.
>
>_______________________________
>
>Michael Marcotrigiano, Ph.D
>Director of the Botanic Garden and Professor of Biological Sciences
>Smith College, Lyman Conservatory, College Lane
>Northampton, MA 01063
>email: mmarcotr@smith.edu
>voice: 413-585-2741; fax: 413-585-2744
>www.smith.edu/garden
>-----------------------------------------------------------------------------------
>Trees are poems that earth writes upon the sky,
>We fell them down and turn them into paper,
>That we may record our emptiness.
>~ Kahlil Gibran
>
> >>> "D. Christopher Rogers" <crogers@ecoanalysts.com> 4/25/2007 3:08 PM
> >>>
>Howdy,
>
>Anyone have a good method for dealing with spider mites? The keep
>popping up
>in my friendâ??s greenhouse. They really seem to like Amorphophallus,
>Xanthosoma, Alocasia, and Colocasia, ignoring everything else. He has
>been
>using neem oil, but it seems to kill off leaves. He went to a weaker
>concentration, which knocks down the mites immediately and saves the
>leaves,
>but even after spraying twice a day for two weeks, they just pop right
>back
>up. They appear to be the two-spotted spider mite.
>
>Thank you in advance,
>Christopher
>
>D. Christopher Rogers
>Invertebrate Ecologist/Taxonomist
>((,///////////=====<
>
>EcoAnalysts, Inc.
>(530) 406-1178
>166 Buckeye Street
>Woodland CA 95695 USA
>
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