In a press release dated September 14, California Citrus Mutual (CCM) announced that the state’s current navel orange crop is down about 7 million cartons. This is approximately 10 percent of total production and is the second year in a row crop production has fallen. The 2017-18 California Navel Orange Objective Measurement Survey released on September 12 forecasts the 2017-18 …
California Department of Pesticide Regulation to Study Chlorpyrifos
A new effort is underway in California to further regulate chlorpyrifos. On August 18, the California Department of Pesticide Regulation (DPR) issued a directive for interim mitigation measures to address health risks from the pesticide. This action marks the start of a public and scientific review of DPR’s revised draft risk assessment that could lead to increased restrictions statewide. At …
CUPS Test to Begin at California Research Center
University of California (UC) scientists at the Lindcove Research and Extension Center (LREC) will soon begin to test the effect of growing citrus under protective screen (CUPS). CUPS is a proposed new method of controlling huanglongbing (HLB), or citrus greening disease, by keeping psyllids, small insects known to spread the disease, away from the trees. The test will evaluate the …
HLB Found in California Citrus Birthplace
A citrus tree in the city of Riverside tested positive for huanglongbing (HLB) disease. The detection is the first case of HLB found in a major citrus-producing county and the most northern in California. The California Department of Food and Agriculture (CDFA) confirmed the detection of HLB disease in a sample taken from a grapefruit tree located in a Riverside …
California Budget Adds Funds to Fight HLB
California is adding funds to help the fight against HLB. Governor Brown signed the 2017 Budget Act this week, which authorizes $10 million to fight the spread of the invasive Asian citrus psyllid (ACP) insect and the deadly and incurable plant disease it can carry, huanglongbing (HLB). “California Citrus Mutual applauds Governor Brown and members of the California Legislature for …
California’s Pesticide Worker Laws Updated
By Len Wilcox Effective January 1, California updated its pesticide worker safety standards to comply with the new federal Worker Protection Standard. The update addressed re-entry to application exclusion zones, fieldworker training, new posting requirements, eyewash equipment and hazard communication. It also made other refinements to the state’s existing standards. Bill Griffin, pesticide supervisor for the Fresno County Agriculture Commissioner, …
California County Supervisor Makes Plea to Stop HLB
San Bernardino County Supervisor James Ramos is asking his constituents to help preserve the citrus industry and protect citrus trees in their area from HLB. In an article he wrote for a community newspaper (The Press-Enterprise), Ramos pointed out that citrus is a staple crop of San Bernardino County and has a rich history that traces as far back as …
California to Increase Citrus Grower Fees
The California State Assembly approved a bill that will allow the citrus industry to increase fees to provide funds for activities to protect residential and commercial citrus trees from the Asian citrus psyllid (ACP) and the deadly huanglongbing (HLB) plant disease it can carry. SB 243 by Senator Galgiani (Stockton) allows for an additional $9.6 million in grower assessments to …
New Case of HLB Found in Southern California
Huanglongbing (HLB) was confirmed in a single citrus tree in the city of La Habra in Orange County, California, on April 11, 2017. This new find will result in a new HLB quarantine area, which will link the existing quarantines into a contiguous zone spanning portions of Los Angeles and Orange counties. Additionally, two samples of Asian citrus psyllids (ACP) …
California Tarping Regulations Delayed
A new tarping regulation for citrus loads was 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 soon be enforced. An enforcement date has not been announced, but could come as soon as April 1. The new regulation, which was supposed to …
Orange Forecast Drops for Florida and California
The citrus crop forecast, delivered by Mark Hudson of the U.S. Department of Agriculture’s (USDA) National Agricultural Statistics Service in Washington, D.C., showed a 4 percent drop in Florida oranges and a 2 percent drop in California oranges. 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 …
Citrus Pest Concerns California Industry
California recently passed a state law designed to combat the spread of an Asian citrus pest. All citrus loads transported through California now must be covered, no matter where it’s coming from or where it’s headed. Sponsored ContentMake a Plan to Eradicate Fire Ants This YearMay 1, 2026Take the Sting Out of Fire AntsApril 1, 2026Take the Sting Out of …
California Citrus Challenges: Water Tops HLB
Asian citrus psyllids are detected sporadically in the San Joaquin Valley — home to most California oranges and mandarins — and are endemic in Southern California lemon country. But as far as anyone knows, the pests that spread HLB in Florida and Texas have not spread the disease into California’s commercial citrus groves. California HLB detections have been limited to 17 …
Impact of Organic vs. Conventional Farming on the Soil Microbiome
An international group of authors recently reported on a study to investigate the impact of organic farming on the soil microbiome in citrus orchards. The authors are: The soil microbiota of eight conventionally and seven organically managed commercial citrus orchards across eastern Sicily were evaluated. FINDINGS The structure (diversity and relative abundance) and functionality of soil bacterial and fungal communities …
Ag Pests and Climate Warming
A team of nine researchers led by University of California Davis (UC Davis) entomologist Mia Lippey recently published a paper on climate warming and the effect on agricultural pests. Their work, Field Data Challenge Predictions of Universal Crop Pest Proliferation Under Warming, appeared in the Proceedings of the National Academy of Sciences. It contradicts experiments indicating that arthropod crop pest densities will …
Citrus Projects Funded by Plant Protection Act
The U.S. Department of Agriculture (USDA) announced an investment of more than $90 million under Section 7721 of the Plant Protection Act to support 441 projects that will: Of the 441 projects, 421 fall under the Plant Pest and Disease Management and Disaster Prevention Program and 20 support the National Clean Plant Network. USDA will reserve approximately $17.2 million to support rapid …
Leadership Program Offers Opportunities for Young Ag Professionals
The Florida Specialty Crop Foundation is seeking applicants for Class 16 of the Emerging Leader Development Program (ELDP). Designed for professionals ages 25 to 40, the program has graduated more than 160 participants since 2011. Its purpose is to develop leaders to be strong advocates for Florida agriculture. Through immersive sessions and direct exposure to the industry’s top leaders, participants …
Fruit Fly Quarantine Updates
The U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) and state agriculture officials recently updated fruit fly quarantines in California and Texas. CALIFORNIA: ORIENTAL FRUIT FLY (OFF) On March 23, APHIS and the California Department of Food and Agriculture (CDFA) removed the OFF quarantine in Riverside and San Bernardino counties, designated the Jurupa Valley quarantine. This …
Irrigation Robot Aims for ‘More Crop per Drop’
Water management is a major challenge facing agriculture in California and other dry regions. A new University of California Riverside (UCR) system can map soil moisture tree by tree, so growers water only where and when it’s needed. The system, detailed in the journal Computers and Electronics in Agriculture, is the work of Elia Scudiero’s research group. Scudiero is associate …
Florida Citrus Mutual Reports on Washington Visit
Matt Joyner, executive vice president and chief executive officer of Florida Citrus Mutual (FCM), reported on a recent trip that he, FCM President Kevin Koppleman and other FCM staff members made to Washington, D.C. Citrus Research and Field Trial Foundation Executive Director Steven Hall accompanied the group. During their visit, the National Citrus Council convened to discuss challenges facing citrus. …



























