California Psyllids Carrying HLB Bacterium in Groves

Tacy Callies California Corner, Psyllids

An ongoing study in coastal Southern California citrus groves has found that just over 3.5% of Asian citrus psyllids (ACP) tested are carrying the bacterium that can cause HLB. ACP is the insect vector of HLB. Thus far, 138 of 3,000 adult ACP collected from 15 commercial citrus sites had some level of the bacterium present. The results were reported …

Assessment Rate Set for California Citrus Growers

Jim Rogers California Corner, Regulation

The California Department of Food & Agriculture (CDFA) has established an assessment rate for California citrus producers of 3.2 cents per 40-pound standard field box for the 2022–23 marketing season. The marketing season runs from Oct. 1, 2022, to Sept. 30, 2023. The assessment applies to all types and varieties of citrus, as defined by the California Citrus Research Program, …

California Oranges Shipped to Korea Require Treatment

Jim Rogers California Corner, Regulation

The California Citrus Quality Council (CCQC) is reminding California orange packinghouses that the first preharvest field application of zinc-copper-lime — or a registered alternative — is required for all orange blocks eligible to ship to Korea this season. These fungicide applications are protective treatments for management of Septoria spot. The treatment should be applied between Oct. 15 and Nov. 30.  Zinc-copper-lime or …

Managing Weeds in California Groves

Jim Rogers California Corner, weeds

By Danielle Leal Over the years, new weeds have surfaced, and old weeds have developed resistance and become tougher to control. Crop scientists are currently researching ways to successfully manage weeds in citrus. Sonia Rios, technical development representative for Bayer Crop Science, said growers are heavily dependent on post-herbicides to help mitigate weeds. “In order to use a pre-herbicide, you …

California Citrus Industry Follows in Florida’s Research Footsteps

Jim Rogers California Corner, Research

By Danielle Leal During a recent trip to Washington, D.C., California Citrus Mutual (CCM) representatives visited with the U.S. Department of Agriculture and members of Congress to outline several citrus industry priorities and secure funding for research. CCM President and Chief Executive Officer Casey Creamer announced during the 2022 California Citrus Conference that the Citrus Research Board received funding from …

Oriental Fruit Fly Quarantine Removed in California

Jim Rogers California Corner, Pests, Regulation

Federal and state agriculture officials removed the Oriental fruit fly (OFF) quarantine in the North Hills area of Los Angeles County, California. The action was taken by the U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS) and the California Department of Food and Agriculture (CDFA). On July 1, APHIS and CDFA established an OFF quarantine in …

Citrus Industry More Effective When Collaborative

Jim Rogers California Corner, Events

By Danielle Leal The 2023 California Citrus Conference in Visalia proved collaboration is pivotal when tackling industry issues. The conference, hosted by California’s Citrus Research Board, had a lineup of industry leaders, researchers and others who updated growers on California’s citrus industry. Casey Creamer, president and chief executive officer of California Citrus Mutual, spoke on strengthening the connection between research …

Advocating for Citrus on Capitol Hill

Jim Rogers California Corner, Legislative

Several California Citrus Mutual (CCM) directors and staff members recently met with U.S. Department of Agriculture (USDA) officials and members of Congress to discuss some of the industry’s biggest priorities. Those priorities include funding for HLB prevention activities and the upcoming 2023 farm bill. CCM directors Matt Fisher, Jared Plumlee, Keith Watkins, Zak Laffite and Julia Inestroza were accompanied on …

California Citrus Mutual Expects Increased Crops

Jim Rogers California Corner, Crop Forecast, Mandarins

The California Citrus Mutual (CCM) Marketing Committee —comprised of growers, shippers and marketers — anticipates the state’s 2022–23 navel orange and mandarin crops will be larger than last season. The U.S. Department of Agriculture also predicted larger California crops in its initial citrus forecast for the 2022–23 season. The navel orange crop will be approximately 10% over the previous season’s …

Regulatory Response to New Citrus Disease Being Developed

Jim Rogers California Corner, Pests, Regulation

State and federal officials are collaborating in the development of a regulatory response to a new citrus disease in California. Citrus yellow vein clearing virus (CYVCV) was identified in the city of Tulare in March. The discovery is the first instance of the disease in the United States. The California Department of Food and Agriculture (CDFA) and the U.S. Department …

New Oriental Fruit Fly Quarantine Established in California

Jim Rogers California Corner, Pests, Regulation

Federal and state agriculture authorities on Sept. 16 established an Oriental fruit fly (Bactrocera dorsalis) quarantine in the Fountain Valley area of Orange 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). This action is in response to the confirmed detections …

California Navel Orange Forecast Up

Jim Rogers California Corner, Production

The initial 2022–23 California navel orange forecast is for 76 million cartons, up 19% from the previous year. Of the total navel orange forecast, 73 million cartons are estimated to be in the Central Valley. Cara Cara variety navel orange production in the Central Valley is forecast at 8 million cartons. The Sept. 12 forecast was issued by the California …

California Seeks Funding for CYVCV Disease

Jim Rogers California Corner, Diseases

With citrus industry backing, California state legislators have requested $2.5 million in emergency state funds to help prevent the spread of citrus yellow vein clearing virus (CYVCV). The first finding of the new disease in the United Sates was recently made in Tulare, California. Casey Creamer, California Citrus Mutual (CCM) president and chief executive officer, said the statewide grower organization …

California’s Total Reported Citrus Acreage Slightly Up

Jim Rogers Acreage, California Corner

California citrus acreage (bearing and nonbearing) planted in grapefruit, lemons, limes, mandarins and pummelos increased in 2022 when compared to 2020. However, the state’s orange acreage declined. That information was in the 2022 California Citrus Acreage Report by the California Department of Food and Agriculture in cooperation with the U.S. Department of Agriculture’s National Agricultural Statistics Service (NASS). Although orange …

New Mexfly Quarantine for California

Jim Rogers California Corner, Pests, Regulation

A portion of San Diego County in California has been placed under a quarantine for the Mexican fruit fly (Mexfly). The quarantine follows the detection of six flies and one larva in and around the unincorporated area of Valley Center. The quarantine will affect any growers, wholesalers, nurseries and retailers of host fruit or host plants in the area. The …

California CRaFT Project Targets Psyllids

Jim Rogers California Corner, Psyllids, Research

All commercial citrus producers in California are invited to apply for participation in the Citrus Research Board’s (CRB) California-focused Citrus Research and Field Trials (CA-CRaFT) project. The overarching goal of CA-CRaFT is to demonstrate the effects of additional mitigations on Asian citrus psyllid control within commercial citrus groves across the various citrus-growing regions in California. The project is supported by …

Coordinated Psyllid Treatment Recommended in California

Jim Rogers California Corner, Pesticides, Psyllids

The San Joaquin Valley ACP (Asian citrus psyllid)/HLB Area-Wide Task Force in California is recommending growers participate in a coordinated treatment application in commercial citrus orchards. This recommendation is for orchards located east and south of Bakersfield and includes young, non-bearing trees. The recommendation comes as a result of higher than normal HLB-spreading ACP finds in traps earlier this summer. …

First U.S. Detection of Citrus Yellow Vein Clearing Virus

Jim Rogers California Corner, Diseases

The first detection of citrus yellow vein clearing virus (CYVCV) has been made in Tulare, California. The disease was detected during the California Department of Food and Agriculture’s (CDFA) routine multi-pest survey. The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) has confirmed positive identifications of the disease. CDFA is surveying for the disease in Tulare County …

Growers Addressing California Red Scale

Jim Rogers California Corner, Pests

Citrus growers are working to address California red scale populations, as second-generation crawlers have emerged in the San Joaquin Valley. University of California Cooperative Extension Area Citrus IPM Advisor Sandipa Gautam said a tool for tracking degree days in Kern, Tulare, Fresno and Madera counties can be a helpful resource for growers. Gautam explained that the hot and dry conditions …

Oriental Fruit Fly Quarantine in Los Angeles County

Jim Rogers California Corner, Pests

A portion of Los Angeles County has been placed under quarantine for the Oriental fruit fly following the detection of 14 flies in the North Hills area of the San Fernando Valley. The quarantine zone measures 89 square miles. It is bordered on the north by the Angeles National Forest, on the south by the Ventura Freeway, on the west …