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Re: Spider Mites

    A couple good products are Floramite, Hexagon and Sanmite.  Your use of
Avid should work well also.  Most important is good coverage.  Since the
little buggers live on the underside of leaves you need to use some high
pressure and blow the leaves back and get the product on the pest.  Most
insecticides only kill adults and not eggs and they also have high
reproduction rates in high temperatures.  Because of this you need to make
multiple applications or use long lasting products or they will come back
with a vengence.  I suggest a Floramite spray since you are suppose to get
28 day control.  Once you get them subdued you could try releasing
persimilus mites.  They are predators of plant feeding mites and have worked
well for me if given about 1 month to work.  Most biological supply labs
would carry them.  I use Rincon Vitova in CA.
Good luck
----- Original Message -----
From: Mike Groothuis <mike.groothuis@worldnet.att.net>
To: <hosta-open@mallorn.com>
Sent: Thursday, May 11, 2000 6:09 PM
Subject: Spider Mites

> We are having a terrible time with spider mites this year in our
> greenhouses due to the excessive heat early in the year. They have even
> migrated to the hostas. How do you kill them!? We have tried Diazinon,
> Cygon, Malithion, Avid, dormant oil spray, and insecticidal smoke bombs.
> The damn things are invincible.
> Mike Groothuis
> Niles, MI
> Maplewood Nursery
> ---------------------------------------------------------------------
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