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by CDFA Office of Public Affairs
parasitic wasp
CDFA has initiated the release of tiny parasitic stingless wasps in Santa Clara County as part of the Asian citrus psyllid project there.

The wasps, called tamarixia radiata, control psyllid populations by parasitizing their egg masses. Once a population of wasps is released, successive generations are capable of flying up-to eight miles in search of Asian citrus psyllids. Watch the video and learn more. →


The citrus crop forecast showed a 2 percent drop from last month in all oranges for California. In total, the U.S. all-orange forecast for the 2016-2017 season dropped 3 percent from last month and is down 13 percent from the 2015-2016 final utilization. Continue reading

Tarping Regulation
A new tarping regulation for citrus loads has been put on hold by the California Department of Food and Agriculture (CDFA). Ag leaders say the industry should still make plans to comply, since the rules will eventually be enforced. Continue reading

acp eradication
Everett Griner talks about eradication of the Asian Citrus Psyllid in today’s Agri View. Hear Everett’s report and learn more. →

tarping fines
New tarping rules are in effect for California citrus. The industry must comply, or it will face costly penalties. Tarping fines could add up to $10,000. Continue reading

citrus showcase
According to California Citrus Mutual (CCM), this year’s Citrus Showcase will include a tarping demonstration and marketing discussion along with the latest information for the industry. Continue reading

tarping
As of March 1, 2017, all citrus loads traveling throughout the state of California have to be tarped. This regulation aims to reduce the accidental transportation of the Asian citrus psyllid (ACP). Continue reading

By Sean Nealon, UC Riverside

citrus greening disease

Credit: UC Riverside
UC Riverside researchers (from left) Philippe Rolshausen, David Jassby, Haizhou Liu, Caroline Roper, Georgios Vidalakis and James Borneman received a $5.1 million grant to fight a disease killing citrus trees.


A team of scientists, led by a group at the University of California, Riverside, has received a five-year, $5.1 million grant from the U.S. Department of Agriculture to fight a disease that is devastating the citrus industry.

The team, led by Caroline Roper, an associate professor of plant pathology, will design and identify bactericides, which are chemicals that kill bacteria, to target Huanglongbing, a bacterial plant disease decimating citrus trees worldwide. They also will focus on better understanding the pathways those bactericides travel inside citrus trees. Continue reading

From: CDFA

citrus greening

Huanglongbing affected citrus tree

The USDA’s National Institute of Food and Agriculture (NIFA) has announced four grants totaling more than $13.6 million to combat a scourge on the nation’s citrus industry, citrus greening disease, also known as Huanglongbing (HLB). UC Riverside will receive $5,112,000 of that funding for a program to design and identify bactericides that can cure or suppress HLB. Continue reading

citrus greening
The U.S. Department of Agriculture’s (USDA) National Institute of Food and Agriculture (NIFA) announced four grants totaling more than $13.6 million to combat a scourge on the nation’s citrus industry, citrus greening disease, aka Huanglongbing. The funding is made possible through NIFA’s Specialty Crop Research Initiative (SCRI) Citrus Disease Research and Extension Program, authorized by the 2014 Farm Bill. Continue reading

citrus harvest
California received an uncommon amount of precipitation the first half of January, and more is expected. Citrus leaders said the rain hasn’t put a damper on harvest, and this season is looking good for the industry. Continue reading

tarping mandatory
All citrus loads being transported in California will now have to be fully covered by tarps. The state passed an emergency law that makes tarping mandatory in an attempt to reduce the accidental spread of the Asian citrus psyllid (ACP). Continue reading

Central Valley
Cold weather blanketed the Central Valley this weekend, but for local citrus growers sub-freezing temperatures are a welcomed change from the unseasonably warm December weather to-date. Continue reading

spreading psyllids
California citrus leaders say it’s evident that the industry is still spreading psyllids. The current system for controlling the spread of Asian citrus psyllids during shipments isn’t killing all of the insects, and new rules are being discussed to help fix the problem. Continue reading

inconclusive results
The current huanglongbing disease test can produce inconclusive results and California citrus leaders say the industry should assume there are more infections in the state. Continue reading

Psyllid Quarantines
California citrus programs are still looking to split the state into regions when it comes to Asian citrus psyllid quarantines. Continue reading

Monitoring Plant Metabolism
Huanglongbing (HLB) pre-screening through analyzing plant metabolism holds potential to be a relatively inexpensive option for growers. Caroline Slupsky, professor in the Department of Nutrition and Food Science and the Department of Technology at the University of California, Davis, is looking at the metabolism of citrus trees and analyzing changes as indicators of stress and disease. Continue reading

Huanglongbing Tree
An arsenal of weapons to combat the deadly citrus disease huanglongbing was described to growers attending the California Citrus Conference in Exeter.
Continue reading

Smelling Huanglongbing
Another early-detection method being developed works by smelling huanglongbing infections in trees. This method detects the different scents plants give off.

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Asian citrus psyllidA portion of Placer County is now under quarantine for Asian citrus psyllid (ACP) following the detection of multiple life stages on citrus trees within the City of Lincoln.

The quarantine zone in Placer County measures 118 square miles, bordered on the north by Riosa Road; on the south by the Roseville City Limit; on the west by Brewer Road; and on the east by Fowler Road. The quarantine map for Placer County is available online at: https://www.cdfa.ca.gov/plant/acp/regulation.html#maps. Please check this link for future quarantine expansions in this county, should they occur. Quarantines in new counties will be announced separately. Continue reading

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