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The Palm Weevil, Rhynchophorus vulneratus, Successfully Eradicated from California


Mark Hoddle

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The Palm Weevil, Rhynchophorus vulneratus, Successfully Eradicated from California

Thursday, March 5th, 2015

In October 2010 a live large black weevil with a red stripe on the thorax (Fig. 1) was found inside the trunk of a dead Canary Islands date palm in Laguna Beach. This weevil was originally identified as the red palm weevil, Rhynchophorus ferrugineus (Fig. 2).  Subsequent work by researchers at UC Riverside using DNA […]

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 […]

What’s in the Fridge?”: Collections of Invasive Insect Pests from Around the World

Friday, January 10th, 2014

Anna Kuchment, Editor for Scientific American, produced a very nice article (“End of Orange Juice ” [Scientific American vol. 308 pp. 52-59, March 2013]) on the Asian citrus psyllid and huanglongbing situation in California, Florida, and other countries affected with this pest and disease. During Anna’s visit to UC Riverside to cover this story, we […]

Entomophagy: Farming Palm Weevils for Food

Monday, September 30th, 2013

  Article by Mark S. Hoddle, Department of Entomology, University of California, Riverside CA 92521, USA Background: Entomophagy is the consumption of insects by humans for food. This is an ancient practice that tends to be concentrated in certain parts of the world, notably tropical and sub-tropical regions, where there is a diversity of large […]

Pheromone Trapping Program for the Brown Marmorated Stinkbug

Monday, June 17th, 2013

A Pheromone Trapping Program for the Brown Marmorated Stinkbug (Halyomorpha halys) Begins in Los Angeles County, California Brown marmorated stinkbug (BMSB), Halyomorpha halys (Hemitpera: Pentatomidae), is an invasive insect pest native to China, Japan, Korea, and Taiwan. It was first discovered and officially documented on the east coast of the USA around 1998. This pest has […]

Searching for natural enemies of the goldspotted oak borer in Arizona

Wednesday, May 29th, 2013

  Written by: Vanessa Lopez (Ph.D. Candidate, UC Riverside) Mark Hoddle, Ph.D. (Biological Control Specialist and Principal Investigator) Photos by: Mike Lewis and Vanessa Lopez     Background The goldspotted oak borer (GSOB), (Agrilus auroguttatus) (Coleoptera: Buprestidae), is a recent pest of native oak trees in southern California.  This fairly small beetle (about 10 mm […]

Has the Red Palm Weevil Gone Extinct in Laguna Beach?

Thursday, March 28th, 2013

The Situation: On 27 March 2013, a Canary Island palm on the Pacific Coast Highway that had been previously inspected and treated for red palm weevil (RPW) infestation in June 2011 was removed by MPA Landscape Services (Chuck Galanti). The palm was removed because it was causing structural problems to an adjacent building, and not […]

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 […]

Testing a New Trapping Program for Red Palm Weevil in Laguna Beach California

Thursday, June 28th, 2012

Since the first official detection of red palm weevil (RPW) in September 2010, the California Department of Food and Agriculture has been running a pheromone trapping program for this pest in Laguna Beach. As part of this trapping program, CDFA is monitoring 153 traps that are set up in two different patterns. The core area […]

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 […]

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