Re: Temperatures

LI,
Your temperature sensor should be mounted at leaf height. It should be shielded
from from solar radiation and have adequate air movement (you want to record the
air temperature, not how much the sensor heats up in direct sun light.)  Misting
controllers should use a combination of canopy, ambient temperature and humidity
readings to determine on/off cycles.



LIpumpkin@aol.com wrote:

> Hi All.....I have a thermometer in my patch---a remote sensor on 10 foot wire
> so I can read it in the house----the sensor is on the ground in the sun (full
> sun now) right next to the 568*Andrews plant and it reads 95*F........my
> other thermometer (consistant with the first) reads 72*F and its in the shade
> of the eves of the house just outside the same window as the first.Its 10 am.
> These are the facts.
>   Now.....what is the accurate temperature that we speak of when we hear
> things like : "I turn the misters on when the temp reads 90 or above"? 90
> where? in the sun? on the ground? Ambient in the shade? I dangled the remote
> cord onto the leaf itself and it read somewhere near the 95 also,so its over
> 90 as far as that leaf knows right?
>   Help !! In on Long Island which is listed as zone 7.....which,as far as I
> can tell,doesn't really say much as far as climate is concerned.Its just an
> indicator of highs and lows right? My temps nomally range up to high 90's in
> the summer's hottest days (maybe 5-8 per summer)  with 20-30 days at 90-96
> and most others in 80's.The sun feels real strong here....and the humidity is
> often high.
>  Is this mister territory or shade cloth? Or both?
>
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