California Pest Rating for Ambrosia Beetle | Xylosandrus amputatus (Blandford) Coleoptera: Curculionidae Pest Rating: A PEST RATING PROFILE Initiating Event: The United States Department of Agriculture’s Plant Epidemiology and Risk Analysis Lab has proposed changing the status of the ambrosia beetle Xylosandrus amputatus from actionable to nonactionable1. A pest rating proposal is required to determine … Continue reading Ambrosia Beetle | Xylosandrus amputatus (Blandford)→
California Pest Rating for Thrips setosus Moulton: Japanese flower thrips Thysanoptera: Thripidae Pest Rating: A PEST RATING PROFILE Initiating Event: USDA is considering changing the status of Thrips setosus from actionable to non-actionable. A pest rating proposal is needed to advise direction on this insect. History & Status: Background: Thrips setosus is a polyphagous … Continue reading Japanese Flower Thrips | Thrips setosus→
California Pest Rating for Phytophthora cambivora (Petri) Buisman 1927 Pest Rating: B PEST RATING PROFILE Initiating Event: None. The current risk and status of Phytophthora cambivora in California are reassessed and a permanent rating is proposed. History & Status: Background: Phytophthora cambiv ora is an oomycete pathogen that can cause crown and root rot disease, … Continue reading Phytophthora cambivora (Petri) Buisman 1927→
California Pest Rating for Pinnaspis strachani (Cooley): Lesser Snow Scale Hemiptera: Diaspididae Pest Rating: A PEST RATING PROFILE Initiating Event: Pinnaspis strachani is frequently intercepted by CDFA. A pest rating proposal is required to support the permanent pest rating. History & Status: Background: Pinnaspis strachani is a highly polyphagous armored scale insect that feeds on … Continue reading Lesser Snow Scale | Pinnaspis strachani (Cooley)→
California Pest Rating for Aonidiella orientalis (Newstead): Oriental Scale Hemiptera: Diaspididae Pest Rating: A PEST RATING PROFILE Initiating Event: Aonidiella orientalis is frequently intercepted by CDFA. A pest rating proposal is required to support its pest rating. History & Status: Background: Aonidiella orientalis is a highly polyphagous armored scale insect. It feeds on the leaves … Continue reading Aonidiella orientalis (Newstead): Oriental Scale→
California Pest Rating for Clavaspis herculeana (Common Name): Herculeana Scale Hemiptera: Diaspididae Pest Rating: A PEST RATING PROFILE Initiating Event: Clavaspis herculeana is commonly intercepted by CDFA. A pest rating proposal is required to support its pest rating. History & Status: Background: Clavaspis herculeana is a polyphagous armored scale insect. It burrows beneath the surface of … Continue reading Clavaspis herculeana (Common Name): Herculeana Scale→
California Pest Rating for Colletotrichum fructicola Prihastuti, L. Cai & K. D. Hyde, 2009 Pest Rating: B PEST RATING PROFILE Initiating Event: On March 29, 2016, a shipment of Chinese evergreen (Aglaonema sp.) cuttings showing leaf spotting symptoms and destined to a nursery in San Luis Obispo County, was intercepted and sampled by San Luis … Continue reading Colletotrichum fructicola Prihastuti, L. Cai & K. D. Hyde, 2009→
California Pest Rating for Planococcus minor (Maskell): Pacific Mealybug Hemiptera: Pseudococcidae Pest Rating: A PEST RATING PROFILE Initiating Event: Planococcus minor 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: Planococcus minor is a … Continue reading Planococcus minor (Maskell): Pacific Mealybug→
California Pest Rating for Acanthococcus lagerstroemiae (Kuwana): Crapemyrtle Scale Synonym: Eriococcus lagerstroemiae Hemiptera: Eriococcidae Pest Rating: A PEST RATING PROFILE Initiating Event: In July 2015 the United States Department of Agriculture (USDA) inquired about California’s position on deregulating Eriococcus lagerstroemiae (Acanthococcus lagerstroemiae). A pest rating proposal is required to determine a permanent pest rating. History … Continue reading Acanthococcus lagerstroemiae (Kuwana) | Crapemyrtle Scale→
California Pest Rating Proposal for Colletotrichum siamense Prihastuti, L. Cai & K. D. Hyde, 2009 Pest Rating: B PEST RATING PROFILE Initiating Event: On June 26, 2015, a California Dog Team intercepted Cacao seed pods with necrotic spots at a parcel distribution facility in Mariposa County and sent a sample to the CDFA Plant … Continue reading Colletotrichum siamense Prihastuti, L. Cai & K. D. Hyde, 2009→
California Pest Rating for Xiphinema index Thorne & Allen, 1950 (Dagger nematode) Pest Rating: B PEST RATING PROFILE Initiating Event: None. History & Status: Background: Xiphinema index was first described by Thorne and Allen in 1950, from soil around roots of fig (Ficus carica, variety Calimyrna) growing near Planada, Merced County, California. By … Continue reading Xiphinema index Thorne & Allen, 1950 (Dagger nematode)→
California Pest Rating for Dysmicoccus grassii (Leonardi): Alazon Mealybug Hemiptera: Pseudococcidae Pest Rating: A PEST RATING PROFILE Initiating Event: Dysmicoccus grassii is frequently intercepted by CDFA and requires a pest rating proposal to support its pest rating. History & Status: Background: Dysmicoccus grassii is a polyphagous mealybug that feeds on tropical and subtropical plants and … Continue reading Dysmicoccus grassii (Leonardi): Alazon Mealybug→
The CDFA's Plant Health and Pest Prevention Services Division grants the public opportunities to comment on proposed pest ratings. The following type of proposals are available for comment:
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