University of California
Cooperative Extension Ventura County
What's Wrong with My Citrus?????????????
Hats Off.
The Orange County Master Gardeners have lived up to their name with their website information on citrus. It's a truly impressive information site for not only homeowners, but also growers:
http://mgorange.ucanr.edu/Edible_Plants/?uid=108&ds=530
The “Citrus Problem Diagnosis Chart” is especially work perusing:
http://ucce.ucdavis.edu/files/datastore/530-15.pdf
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citrus and mountains