expanded

Commercial Citrus Impacted by Expanded HLB Quarantine

Daniel CooperCalifornia Corner, Diseases

The area quarantined for HLB in San Diego County, California, has been expanded, the U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) announced on Sept. 23. USDA APHIS took the action in cooperation with the California Department of Food and Agriculture (CDFA). HLB, a plant disease caused by Candidatus Liberibacter asiaticus, is also known as citrus …

expanded

Citrus Disease Quarantines Expanded in California

Daniel CooperCalifornia Corner, Diseases, Regulation

U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA/APHIS) officials, in cooperation with the California Department of Food and Agriculture (CDFA), recently expanded the areas quarantined for huanglongbing (HLB) and sweet orange scab (SOS) in the state. HLB The quarantined area in Los Angeles, Orange and Riverside counties has been expanded by approximately 50 square miles. Additionally, the …

medfly

Medfly Quarantine Issued in California

Daniel CooperCalifornia Corner, Pests, Regulation

A portion of Alameda County in California has been placed under quarantine for the Mediterranean fruit fly (Medfly) following the detection of one wild mated female in Fremont. The U.S. Department of Agriculture, the Alameda County agricultural commissioner and California Department of Food and Agriculture (CDFA) are working collaboratively on the project. The quarantine area in Alameda County measures approximately …

acreage

Changes in California Citrus Acreage

Daniel CooperAcreage, California Corner

The 2024 California Citrus Acreage Report indicates that acreage for five varieties increased from 2022 to 2024 while acreage for the state’s two orange varieties decreased during the same period. INCREASES The increases were in: DECREASES Navel oranges declined from 113,586 acres in 2022 to 112,366 acres in 2024. Valencia orange acres dipped from 26,225 to 25,297 acres for the …

Oriental fruit fly

California Quarantine Updates

Daniel CooperCalifornia Corner, Pests, Regulation

Federal and state officials have removed and reduced Oriental fruit fly (OFF) quarantines in two California counties and expanded the huanglongbing (HLB) quarantine in another county. The actions were taken by the U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) and the California Department of Food and Agriculture (CDFA). ORIENTAL FRUIT FLY On July 5, the …

Riverside

CLas-Positive Psyllid Sample in Riverside County

Daniel CooperCalifornia Corner, Psyllids

An adult Asian citrus psyllid (ACP) sample from a residential property in the San Jacinto Valley area of Riverside County, California, has tested positive for Candidatus Liberibacter asiaticus (CLas), the bacterium that causes huanglongbing (HLB). The positive sample was collected as part of the Multi-Pest Risk Survey on a residential property in Hemet. It was confirmed positive for CLas on …

Tau Fruit Fly

Tau Fruit Fly Quarantine Lifted in Los Angeles County

Daniel CooperCalifornia Corner, Pests, Regulation

The California Department of Food and Agriculture (CDFA) has officially declared an end to the Tau fruit fly quarantine in Los Angeles County following the successful eradication of the invasive pest. The quarantine, which was established in the Santa Clarita area of Los Angeles County, was the first-ever quarantine for the Tau fruit fly in the Western Hemisphere. It encompassed …

fruit fly

Oriental Fruit Fly Update for California

Daniel CooperCalifornia Corner, Pests, Regulation

Federal and state agriculture officials on May 31 removed the Oriental fruit fly (OFF) quarantine in Sacramento County, California. The action was taken by the U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) and the California Department of Food and Agriculture (CDFA) after three OFF life cycles elapsed with no additional detections in the area. The …

whole orchard recycling

Grant Funds Grower’s Whole Orchard Recycling

Daniel CooperCalifornia Corner

Grower John Gless owns a citrus orchard in California’s Kern County, which has greater citrus production than nearly any other county in the state. In 2020, he was looking to replace his old orchard and improve the orchard’s soil health through the conservation management practice of whole orchard recycling. With whole orchard recycling, orchard trees are chipped and spread back …

Oriental fruit fly

One Oriental Fruit Fly Quarantine Removed in California

Daniel CooperCalifornia Corner, Pests, Regulation

Federal and state agriculture officials on May 16 removed the Oriental fruit fly (Bactrocera dorsalis; OFF) quarantine in Santa Clara County, California. The action was taken by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (USDA APHIS) and the California Department of Food and Agriculture (CDFA). It came after three OFF life cycles elapsed with no additional …

biological control

Biological Control Leads to ‘Massive Decline’ in Psyllids

Daniel CooperBiologicals, California Corner

Repeated evaluations throughout California showed “a massive decline – greater than 70%” in HLB-spreading Asian citrus psyllid (ACP) densities since the inception of a biological control program, a researcher reported recently. Mark Hoddle said the University of California, Riverside (UCR) and the California Department of Food and Agriculture (CDFA) turned to biocontrol because insecticide spraying wasn’t adequately controlling the psyllid. …

valencia orange

Valencia Orange Forecast for California

Daniel CooperCalifornia Corner, Crop Forecast

California’s 2023–24 Valencia orange forecast, issued by the California Department of Food and Agriculture (CDFA), is 16 million cartons. The forecast was based on the results of the 2023–24 Valencia Orange Objective Measurement Survey conducted from Jan. 2 to Feb. 27. CDFA reported that Southern and Central California have received significantly more rain than usual over the winter and spring, …

areas

HLB Quarantine Areas Expanded in California

Daniel CooperCalifornia Corner, HLB Management, Regulation

Federal and state agriculture officials have expanded the areas quarantined for huanglongbing (HLB; also known as citrus greening) in California. The action was taken by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) in cooperation with the California Department of Food and Agriculture (CDFA).  APHIS is adding portions of Los Angeles, San Diego and Ventura counties …

bill

Oriental Fruit Fly Quarantine Prompts California Bill

Daniel CooperCalifornia Corner, Legislative, Pests

California Assembly member Eloise Reyes on Feb. 15 introduced a bill establishing a statewide goal to manage the introduction and spread of invasive species across California. Assembly Bill 2827 was introduced in response to the California Department of Food and Agriculture’s (CDFA) quarantine for the Redlands and Yucaipa areas of San Bernardino County due to impacts of the Oriental Fruit …

fruit fly

California Fruit Fly Quarantines Expanded Again

Daniel CooperCalifornia Corner, Pests, Regulation

Agriculture officials expanded the Oriental fruit fly (Bactrocera dorsalis/OFF) quarantine in California’s San Bernardino and Riverside counties on Dec. 22, 2023. On Dec. 27, 2023 and Jan. 17, 2024, they expanded the Mediterranean fruit fly (Ceratitis capitata/Medfly) quarantine in Los Angeles County. The actions were taken by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (USDA APHIS) …

pollinator

Grant to Enhance Pollinator Habitat in Groves

Daniel CooperCalifornia Corner, soil

The California Farm Bureau and its partners have received $5 million from the California Department of Food and Agriculture (CDFA) to implement climate-smart farming practices in citrus groves in 11 counties. The project, part of CDFA’s Healthy Soils Block Grant Pilot Program, will focus on hedgerow planting, carbon sequestration and soil management practices. All of those practices create a safe …

Yellow Vein Clearing Virus Spreads in California

Tacy CalliesCalifornia Corner, Diseases

Positive identifications of citrus yellow vein clearing virus (CYVCV) have been found in the Hacienda Heights area of Los Angeles County. The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service confirmed the identifications during the California Department of Food and Agriculture’s (CDFA) routine multi-pest survey. This is the second area in California where CYVCV has been detected. The …

quarantine

New HLB Quarantine Area for California

Daniel CooperCalifornia Corner, HLB Management, Regulation

A newly established quarantine area has been declared following the detection of HLB in five trees in the Valley Center area of California’s San Diego County. The trees were located on a residential property with non-commercial citrus acreage. This is the first time the disease has been confirmed in Valley Center, marking the third area in San Diego County to …

Oriental fruit fly

Oriental Fruit Fly Quarantine Expanded in California

Daniel CooperCalifornia Corner, Pests, Regulation

The Oriental fruit fly (OFFor Bactrocera dorsalis) quarantine in San Bernardino and Riverside counties in California was expanded in October and November by federal and state agriculture authorities. The actions were taken on Oct. 12, Nov. 3, Nov. 9 and Nov. 17 by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and the California Department of …

medfly

Medfly Quarantine Expanded

Daniel CooperCalifornia Corner, Pests, Regulation

Federal and state authorities in early November expanded the Mediterranean fruit fly (Ceratitis capitata or Medfly) quarantine in the Leimert Park area of Los Angeles County, California. The action was taken by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA) on Nov. 1 and again on Nov. …