California Pest Rating for Texas Phoenix Palm Decline Phytoplasma Pest Rating: A PEST RATING PROFILE Initiating Event: During the month of February 2014, CDFA Plant Pathologist Dr. Cheryl Blomquist was notified by Dr. N. Harrison, Plant Pathologist, University of Florida, Fort Lauderdale of palm stem tissue samples he had received from a California private palm … Continue reading Texas Phoenix Palm Decline Phytoplasma
California Pest Rating for Palmetto weevil | Rhynchophorus cruentatus (Fabricius) Coleoptera: Dryophthoridae Pest Rating: A PEST RATING PROFILE Initiating Event: Rhynchophorus cruentatus is currently Q-rated. A permanent pest rating proposal is required to support an official pest rating. History & Status: Background: Adult R. cruentatus are large weevils that measure 2.7 to 3.3 centimeters in … Continue reading Palmetto Weevil | Rhynchophorus cruentatus (Fabricius)
California Pest Rating for South American Palm Weevil | Rhynchophorus palmarum (Linnaeus) Coleoptera: Curculionidae Pest Rating: B PEST RATING PROFILE Initiating Event: On March 17, 2016 several adult and larval weevils collected by San Diego County officials during the removal of a Canary Island date palm in San Ysidro were identified as Rhynchophorus palmarum, South … Continue reading South American Palm Weevil | Rhynchophorus palmarum (Linnaeus)
California Pest Rating for Diaporthe pseudophoenicicola R. R. Gomes, C. Glienke & Crous 2013 Pest Rating: C PEST RATING PROFILE Initiating Event: On June 15, 2017, a shipment of an unknown plant, exhibiting symptoms of leaf spotting and destined to a commercial florist in Los Angeles County, was intercepted by the CDFA Dog Team in … Continue reading Diaporthe pseudophoenicicola R. R. Gomes, C. Glienke & Crous 2013
California Pest Rating for Calonectria pteridis Crous, M. J. Wingf. & Alfenas, 1993 Pest Rating: B PEST RATING PROFILE Initiating Event: On April 19, 2016, diseased Ravenea rivularis (majesty palm) plants exhibiting leaf spots were intercepted by San Luis Obispo County Agricultural officials. The shipment of plants had originated in Florida and was destined to … Continue reading Calonectria pteridis Crous, M. J. Wingf. & Alfenas, 1993
California Pest Rating for Ripersiella hibisci (Kawai & Takagi): Root Mealybug Hemiptera: Rhizoecidae Pest Rating: A PEST RATING PROFILE Initiating Event: Ripersiella hibisci is frequently intercepted by CDFA and is presently assigned a temporary rating of “Q”. A pest rating proposal is required to assign a permanent pest rating. History & Status: Background: Ripersiella hibisci … Continue reading Ripersiella hibisci (Kawai & Takagi): Root Mealybug
California Pest Rating for Dactylotrypes longicollis (Wollaston): Beetle Coleoptera: Curculionidae Pest Rating: C PEST RATING PROFILE Initiating Event: On October 13, 2015 Dr. Andrew Cline identified two beetles collected from a Lindgren funnel trap as Dactylotrypes longicollis. A pest rating proposal is required to assign a permanent pest rating. History & Status: Background: Dactylotrypes longicollis … Continue reading Dactylotrypes longicollis (Wollaston): Beetle
California Pest Rating for Pseudaulacaspis cockerelli (Cooley): Magnolia White Scale Hemiptera: Diaspididae Pest Rating: A PEST RATING PROFILE Initiating Event: Pseudaulacaspis cockerelli is frequently intercepted by CDFA and requires a pest rating proposal to support its pest rating. History & Status: Background: Pseudaulacaspis cockerelli is a highly polyphagous armored scale insect that is a pest of … Continue reading Pseudaulacaspis cockerelli (Cooley): Magnolia White Scale
Plant diseases can be caused by several pathogenic microorganisms including fungi, bacteria, viruses, viroids, phytoplasmas and plant parasitic nematodes. In California, several plant pathogens have evolved with native plants and consequently, caused little damage. However, many other pathogens are either not present or have only been newly discovered within the State. Without effective regulations in … Continue reading Plant Pathogens
You must be logged in to post a comment.