To: Aroid-L
Subject: Re: [Aroid-l] Spider Mites
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" 4/25/2007 3:08 PM
>>>
Howdy,
Anyone have a good method for dealing with spider mites? The keep
popping up
in my friend’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
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