[Arid_gardener] Yellow citrus leaves

[Jim Oravetz]

Hello Paul,
If the leaves on the south and/or west side of 
your citrus tree have the most yellow leaves and 
the north and east sides of the tree are still 
pretty much green, then your leaves are being 
scorched by the sun during this hot time. You 
might consider shading the tree from the hot 
afternoon sun. Even large mature citrus trees can 
suffer  from the heat and yellow during this time 
of year. If you do shade your tree, don't expect 
to see any kind of quick change in the leaf 
color. It will take some time, Or if the leaves 
are too damaged, the won't green back up at all. 
However any new growth that is shaded will most likely stay green.
Jim Oravetz
Master Gardener

At 06:18 PM 7/3/2007, paul christensen wrote:
>I was wondering why my 2 ruby red grapefruit 
>trees’ leaves are turning yellow?  They were 
>planted in the spring of ‘06 and then suffered 
>through the harsh frost of last winter.  I 
>covered them up and thought they had survived 
>ok.  The leaves grew back and were nice and 
>green.  Now with the AZ temps over 110 degrees I 
>am deep watering once a week in addition to the 
>automatic shorter waterings from a drip system 
>3X a week.  Am I over watering?  I have not 
>fertilized them.  The leaves have recently 
>turned yellow.  Please advise what I need to do 
>–or not do.  Thanks for your information and help.
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