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Below you'll find a list of all posts that have been categorized as “California Corner”
Federal and state agriculture officials have expanded the quarantine for citrus greening in the Perris area of Riverside County in California by 33 square miles. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) in cooperation with the California Department of Food and Agriculture (CDFA) expanded the quarantine. The measure parallels the intrastate quarantine that CDFA established …
A portion of Santa Clara County has been placed under quarantine for the Mediterranean fruit fly (Medfly) following the detection of two wild female flies in the city of San José. If not stopped, Medflies can devastate fruits and vegetables by reproducing and leaving larvae in produce. The invasive flies can then spread to other regions. A quarantine is a …
An August citrus mealybug (CMB) pest memo released by University of California Agriculture and Natural Resources warned that CMB activity typically peaks during the summer months. Highlights from the memo follow: In August, it is critical to access both pest pressure and natural enemy activity. This is a crucial period for making informed decisions that support biological control and avoid …
A recent Citrus Industry article reported on Brazil’s Fundecitrus hosting a delegation of agriculture leaders from California. The California Department of Food and Agriculture (CDFA) also reported on the trip, which included other venues in addition to Fundecitrus. Highlights from the CDFA report follow. During the trip to Brazil, the California delegation visited farms, packinghouses, research facilities and business incubators …
A Mediterranean fruit fly (Medfly) infestation centered in and around the city of Fremont, California, has been eradicated. The eradication ends a 213-square-mile quarantine that began Sept. 6, 2024. The California Department of Food and Agriculture (CDFA), the U.S. Department of Agriculture (USDA) and the Alameda County agricultural commissioner’s office accomplished the eradication. CDFA used the release of sterile male …
Brazil’s Fundecitrus recently hosted a delegation of approximately 20 agricultural leaders from California. Karen Ross, secretary of the California Department of Food and Agriculture, led the delegation. The group visited Brazil to learn more about Fundecitrus’ research, education, training and sustainability initiatives focused on citrus farming. The Californians participated in technical discussions with researchers and took a tour of Fundecitrus’ …
Federal and state agriculture officials recently expanded the areas quarantined for citrus greening disease in California. They expanded the quarantined area in the Coto de Caza area of Orange County by 11 square miles, the Rancho Santa Margarita area of Orange County by 93 square miles, the Perris area of Riverside County by 37 square miles, and the Rancho Cucamonga …
Native to South America, Argentine ants were introduced to California in 1905. Today, 90% of Southern California and coastal orchards are infested with ants. Some trees experience up to 1 million ant visits per day. Ivan Milosavljević, Citrus Research Board (CRB) entomologist, presented that information in a June 17 webinar that was part of CRB’s Grower Seminar Series. His presentation …
Jesse Silva of Kings River Packing recently discussed with AgNet West’s Nick Papagni the increasing use of netting in California citrus orchards. This practice is used for seedless mandarin production in particular. “There’s really been a push for seedless mandarins in the industry,” Silva said. “Over the last 10 years, we’ve all worked diligently to find the very best varieties …
Walking through rows of citrus groves on a sunny April morning, University of California Riverside (UCR) Dining Services employees picked fruit off trees and loaded it into the bed of a truck. A little more than a month later, fresh ice cream made from that citrus was being served in Scoops Ice Cream Shop at UCR. The citrus came from …
The Oriental fruit fly quarantine in California’s Orange County has been lifted following the eradication of the invasive pest. The California Department of Food and Agriculture (CDFA), in partnership with the U.S. Department of Agriculture (USDA) and the Orange County agricultural commissioner, announced the action. The Oriental fruit fly is known to infest more than 250 types of fruits and …
Brown garden snails (Cornu aspersum) can reach incredible population densities in California citrus orchards if left unmanaged. More than 1,000 snails per tree have been documented in some cases, according to Mark Hoddle, University of California, Riverside biological control specialist. To help growers deal with this problem, Hoddle recently participated in a Citrus Research Board webinar. He presented information on …
A new quarantine area for sweet orange scab (SOS) was recently established in the Burbank area of California’s Los Angeles County. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA/APHIS) in cooperation with the California Department of Food and Agriculture announced the quarantine area. The 91-square-mile quarantine was established because of an SOS detection in a plant …
In a recent webinar, Tracy Kahn provided details about seven lemon selections undergoing Citrus Research Board trials at four California locations. Kahn is the Givaudan Citrus Variety Collection endowed chair at the University of California, Riverside (UCR). The information she presented included the selections’ compatibility with various rootstocks. All of the lemon selections are irradiated and described as seedless, except …
Federal and state agriculture officials recently expanded the areas quarantined for huanglongbing (HLB, also known as citrus greening) disease in California. The quarantined area in the Foothill Ranch and Mission Viejo areas of Orange County has been expanded by 26.69 square miles, the Riverside area of Riverside County by 11.3 square miles, and the Valley Center area of San Diego …
By Lindy Savelle In mid-April, members of the Georgia Citrus Association (GCA) traveled to California’s Central Valley to study the systems, innovations and strategies that have made the state a powerhouse in citrus production. Our goal was clear: to bring back ideas, solutions and inspiration that can help shape the future of Georgia’s growing citrus industry. Our group included growers, …
The California Department of Food and Agriculture (CDFA), cooperating with the U.S. Department of Agriculture National Agricultural Statistics Service, has forecast California’s 2024–25 Valencia orange production at 15 million cartons. California’s final utilized production the prior season was 18.6 million cartons. Cartons have a standard equivalent weight of 40 pounds. CDFA reported there are 25,000 bearing Valencia acres in 2024–25, …
It costs $4,215 per acre to grow navel oranges in California in 2025, California Citrus Mutual (CCM) reported following a recent survey of production costs. That’s up from $3,300 in 2020 (a 35% increase), $2,712 in 2015 (a 75% increase), $2,099 in 2010 (a 125% increase) and $1,555 in 2005 (a 171% increase). Additionally, CCM reported that picking and hauling …
A new pictorial guide can help California growers differentiate between the damages caused by the same pest on different citrus varieties. Comparing the Fruit Rind Scarring That Three Early-Season Pests Cause in Mandarin Species and Sweet Orange was published by University of California Agriculture and Natural Resources. Early-season insect pests — such as katydids, earwigs and citrus thrips — feeding …
By Clint Thompson and Nick Papagni The Georgia Citrus Association’s trip to California last week allowed industry leaders to look for opportunities to advance citrus in the cold-hardy region. One of the focuses was learning about the different varieties produced in California that could have a potential future in the Southeast. Lindy Savelle, executive director of the Georgia Citrus Association …
