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Psyllaphycus diaphorinae: Another Natural Enemy from Pakistan for ACP Biocontrol?


Asian Citrus Psyllid

Psyllaphycus diaphorinae: Another Natural Enemy from Pakistan for ACP Biocontrol?

Monday, January 11th, 2016

Written by: Allison Bistline-East Email: a.bistline-east1@nuigalway.ie More Research: UCR Biocontrol Website The Problem. In 2008, the Asian citrus psyllid (ACP), Diaphorina citri (Hemiptera: Liviidae), was first detected in California. Since its establishment in California, commercial citrus growers and homeowners alike have become familiar with this notorious pest and the threat it represents as a vector of the bacterium, […]

First Official Release of Diaphorencyrtus aligarhensis in California for the Biological Control of Asian Citrus Psyllid

Friday, December 19th, 2014

The Problem Asian citrus psyllid (ACP) is a serious threat to California’s citrus because it spreads a bacterium that causes a lethal disease of citrus, huanglongbing, which was first detected in Hacienda Heights, Los Angeles County in March 2012. One way to reduce the rate of spread of HLB is to reduce the populations of […]

Tamarixia radiata and Natural Enemy Impacts on the Invasive Asian Citrus Psyllid in southern California

Friday, October 31st, 2014

Written by: Erica J. Kistner  (Postdoctoral Scholar, UC Riverside) Photos by: Mike Lewis, Mark Hoddle and Nayham Melhem   The Problem: Since its accidental introduction in 2008, the invasive Asian Citrus Psyllid (ACP) is now widespread throughout southern CA including San Diego, Imperial, Riverside, Los Angeles, Orange, and San Bernardino counties. ACP may present the greatest […]

Has the Asian Citrus Psyllid Parasitoid, Tamarixia radiata, Established in California?

Thursday, July 19th, 2012

The Problem: Tamarixia radiata, a tiny parasitic wasp has been imported into California from the Punjab of Pakistan to attack nymphs of Asian citrus psyllid (ACP), a serious citrus pest that has established wide spread populations in the counties of Los Angeles, San Bernardino, and Riverside (significantly smaller populations are known in Imperial and San […]

Huanglongbing Detected in Hacienda Heights, Los Angeles County

Friday, April 13th, 2012

The Situation: On Thursday April 5 2012, after about a week of testing, the California Department of Food and Agriculture (CDFA) removed a pumelo tree with a lemon graft from Hacienda Heights in Los Angeles County after the tree and an Asian citrus psyllid found on the tree both tested positive for a lethal citrus […]

Tamarixia radiata release video

Thursday, January 12th, 2012

Christina Hoddle explains the release of Tamarixia radiata at UC Riverside. Video recorded on December 20, 2011 at University California Riverside. For more information about Tamarixia radiata and Asian Citrus Psyllid, visit the CISR website: http://cisr.ucr.edu/asian_citrus_psyllid.html

First Release of Tamarixia radiata in California for the Biological Control of Asian Citrus Psyllid

Tuesday, December 20th, 2011

At 11:00 am on the 20 December 2011, approximately 30-40 people assembled at the UC Riverside Biological Control Grove to participate in the first release in California of the Asian citrus psyllid natural enemy, Tamarixia radiata. Representatives from the University of California, California Department of Food and Agriculture, Citrus Research Board, and Citrus Pest and […]

Hunting for Natural Enemies of Asian Citrus Psyllid in Pakistan

Tuesday, November 8th, 2011

Asian citrus psyllid (ACP) was found in California in late 2008 in San Diego and Imperial Counties. This invasive pest sucks sap from citrus and is a major concern for California because when feeds ACP inject into trees bacteria that cause a lethal disease of citrus known as huanglongbing (HLB). This plant disease is incurable, […]

Tracking Down Asian Citrus Psyllid in Pakistan

Tuesday, September 28th, 2010

The Hunt for Natural Enemies has Begun Asian citrus psyllid (ACP), Diaphornia citri, is considered to be one of the world’s most serious threats to economic citrus production because it vectors a bacteria, Candidatus Liberibacter asiaticus, that causes Huanglongbing (HLB) (also known as citrus greening), a disease that is lethal to most varieties of citrus. […]


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