[Arid_gardener] grapefruit tree, foliage thinning

[Linda Drew]

Two possibilities are Phytophthora (fungus) disease  or nematode, but there
are many other possibilities and it might just be a result of cold damage.

Check diseases of citrus,

http://ag.arizona.edu/pubs/diseases/az1154/

for other symptoms to look for with these two possibilities.

Linda Drew
Master Gardener

> Date: Thu, 22 May 2008 17:21:25 -0700
> To: arid_gardener at Ag.arizona.edu
> From: boband.lynn at cox.net
> CC: 
> Subject: [Arid_gardener] Question from Home-Hort WWW page
> 
> Bob Blomquist
> 85395
> boband lynn at cox.net
> 
> I have a 12 year old grapefruit tree. It had
> an abundant crop this year. But, on one side
> of the tree, the frolige has become very
> very thin. I deep water every three to four
> weeks, and fertilize as recommended.
> Do you have any suggestions? We did have
> severe freezes the last two years in Goodyear.
> The tree was planted on a mound, so it can't
> be flooded as one in a well.
> Thanks, Bob Blomquist
> 
> 
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