Re: Hot Pots

["Walter Nelson" <wnelson@freedom.cce.cornell.edu>]

reducing temperatures with mist is one alternative.  Is the air confinement
sufficient to consider the use of fog rather than mist for cooling?  Lots
of air exchanges would likely negate this as the suspended water is very
mobile.  Fog keeps the foliage dry and the area cool in house in this area.
 It does not work well with air migration or breezes.
Cheers,
Walter N Nelson
Extension Educator, Horticulture

e-mail wnelson@cce.cornell.edu
voice 607.734.4453
FAX 607.734.7740
s-mail 425 Pennsylvania Ave.
          Elmira NY 14904

----------
> From: Marty Reichenberger <mreich@terraworld.net>
> To: Florinet <FLORINET@agvax2.ag.ohio-state.edu>
> Subject: Hot Pots
> Date: August 24, 1998 9:11 AM
> 
> This is the first year we have transplanted poinsettias and placed them
> in a retractable roof greenhouse with no shade cloth.  I keep the roof
> only cracked slightly (10%) to reduce the light intensity (equal to
> about 20% shade) and it has roll up sides to increase ventilation.  We
> are keeping the points misted down hourly to help with
> evapotranspiration and to increase the humidity; and they have stopped
> wilting in the heat of the afternoon.  The only problem I am seeing is
> they are slower to root out of the Oasis than in the double poly houses
> with 45% shade and fan and pad.  The soil temperatures are quite a bit
> higher (above 100 degrees at times) than the double poly houses, but the
> leaves are covering the top of the soil and blocking out almost all of
> the light on the top of the pot.  Is there a temperature at which they
> won't root out into the media??  I still have very healthy roots and
> have applied fungicide.  I wouldn't be so worried if the heat would
> break in this area (SE Kansas 95-100 daily).  Has anyone transplanted
> into houses without in shade comparable to my situation and area???  Any
> thoughts would be appreciated!!
> 
> Marty Reichenberger
> Green Thumb Greenhouse
> Independence, KS