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This is a great website to view plant nutrient symptoms by plant or by nutrient. It is of ornamental plants, but hey, once you can see it on one plant you will something very similar on avocado, lemon, apple, almond, lychee or whatever alphabetic fruit you work with. Kudos to University of Florida.

The California Avocado Commission is joining forces with Kevin Turner, UC Cooperative Extension goldspotted oak borer (GSOB) program coordinator (http://ucanr.edu/sites/gsobinfo/) in producing and distributing a number of roadside signs to help control the movement of pest infested firewood.

Posted on May 27, 2015 by Office of Public Affairs In a landmark step in the fight against citrus greening disease, also known as huanglongbing (HLB), the U.S.

Diseases, disorders and other plant problems are critical concerns for the wholesale nursery.

Dry Root Rot is a pretty fantastic disease symptom that is usually seen in lemon, but can be seen in orange, as well. Craig Kallsen, UCCE Citrus Advisor in Kern Co. comments on a disease sample: I have seen a lot of dry root rot over the years.