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In an interview at the Citrus Research Board’s (CRB) annual conference last month, Karen Ross, secretary of the California Department of Food and Agriculture (CDFA), said the present status of huanglongbing (HLB) disease is similar to another disease that challenged the California citrus industry years ago. Pierce’s disease was a potentially devastating threat long before HLB. “One of the things …
Freeze alerts by phone will be available this winter for California citrus growers. California Citrus Mutual (CCM) is implementing a new system to help Central Valley growers stay updated on freeze alerts. Growers can sign up for text notifications to be alerted when the CCM Central Valley Weather Watch forecast is updated. This will include updates during critical nights. To …
Chlorpyrifos is being targeted again by environmental agencies. According to a press release from California Citrus Mutual (CCM), the California Environmental Protection Agency announced in mid-August that both California Department of Pesticide Regulation (DPR) and the Office of Environmental Health Hazard Assessment are pursuing new restrictions on chlorpyrifos. CCM says that chlorpyrifos is one of the most important and widely …
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 …
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 …
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 …
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 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 …
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, …
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 …
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 …
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) …
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 …
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 …
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 ContentCitrus Producers Express Growing Optimism Since the Introduction of ReMedium TI®October 14, 2026ReMedium TI® Demonstrates Proven Performance in Citrus Greening ManagementOctober 6, 2026Take …
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 …
University of California, Riverside (UCR) citrus researcher Mikeal Roose is among 23 honorees across the University of California (UC) campuses who recently received UC Regents Innovation Awards. Roose is credited with co-developing the seedless Tango mandarin. The awards recognize UC faculty members whose research has real-world impact. Roose was among 11 honored in the Distinguished Lifetime Achievement Award category for …
Blood oranges are an enticing option to help cold-hardy citrus producers diversify their crop portfolio. Muhammad Shahid, assistant professor of horticulture at the University of Florida Institute of Food and Agricultural Sciences, is researching the crop at the North Florida Research and Education Center in Quincy. Nothing has deterred him from recommending it to growers in North Florida, South Georgia …
U.S. Department of Agriculture National Agricultural Statistics Service (USDA NASS) released its first citrus crop forecast of the 2026–27 season on Oct. 9. The federal forecast for all Florida citrus varieties, with the exception of lemons, is down from last season. All citrus crops in other states are expected to increase. FLORIDA The Florida all-orange crop is expected to plummet …
Texas citrus growers are among those urging the Environmental Protection Agency (EPA) not to revoke all food residue tolerances on five neonicotinoid insecticides used on citrus. This includes acetamiprid, clothianidin, dinotefuran, imidacloprid and thiamethoxam. The Natural Resources Defense Council, Inc. in 2020 petitioned EPA to revoke the food tolerances for residues of those neonicotinoids. EPA has stated that by April …
