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News for citrus growers around the globe
A failed field test has led to a major discovery about Asian citrus psyllids (ACP). According to new research, the bacterium that causes HLB disease can interfere with ACP’s sense of smell, rendering some kinds of insect traps useless. The work is currently available as a preprint. HLB, also known as citrus greening, is caused by the Candidatus Liberibacter asiaticus (CLas) bacterium. …
Australian orange juice (OJ) production in 2023–24 is forecast at 15,400 metric tons (MT) by the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS). That’s a decrease of 4% from the 2022–23 estimate of 16,100 MT. Higher production and improved fruit quality for fresh oranges is anticipated in 2023–24, resulting in a lower volume of rejected fruit channeled toward …
By Tripti Vashisth Huanglongbing (HLB) severity is associated with small fruit sizes and lower fruit numbers at harvest. Moreover, small fruit are more likely to drop and drop earlier during preharvest fruit drop. Unfortunately, management practices suggested to increase fruit size or reduce drop have had mixed results. So, before looking for ways to increase fruit size and number, it …
The Florida Citrus Show returns on April 3! Registration is now open for the 2024 show. Join us for a trade show full of the top agricultural companies, informational seminar sessions and an exciting tailgate party. This isn’t your average trade show. In between seminar sessions, growers can mingle with exhibitors and sample their tailgate dishes. Be sure to visit …
China production forecasts are increased for both mandarin/tangerine and grapefruit/pomelo crops in 2023–24 compared to the prior year. The forecasts were issued by the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS). MANDARINS/TANGERINES China’s mandarin/tangerine production is forecast at 26.9 million metric tons (MMT) in 2023–24, up from 26.5 MMT the previous year. The increase is because of a …
By Peter Chaires Beginning this month, Citrus Nursery Source (CNS) transitions to Citrus Industry magazine after 14 years in Florida Grower magazine. For those unfamiliar with this column, CNS covers citrus industry issues that are of potential interest to nurseries and the growers they serve. Recognizing that it is difficult for nursery owners and staff to regularly attend meetings, this …
In the Jan. 12 citrus forecast from the U.S. Department of Agriculture’s National Agricultural Statistics Service (USDA NASS), Florida’s citrus crop estimates were unchanged from December, but other citrus-producing states saw changes. CALIFORNIA UPS AND DOWNSThe California forecast for oranges increased for both Valencias and non-Valencias. The Valencia crop rose from 7.5 million boxes to 7.8 million boxes. Non-Valencias increased …
European Union (EU) lemon production is forecast at just over 1.6 million metric tons (MT) in 2023–24, up from the 1.5 million MT in 2022–23, the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) recently reported. The increase can be entirely attributed to an all-time-record production level in Spain, following the historically low lemon production there in 2022–23. Conversely, …
The U.S. Department of Agriculture (USDA) is amending the Florida Citrus Marketing Order for fresh citrus to reduce membership of the Florida Citrus Administrative Committee (CAC) and to update quorum requirements. Other amendments to the marketing order include: CAC recommended these changes to help fulfill membership and quorum requirements and ensure a more efficient and orderly flow of business. Authority …
Federal agriculture officials, in cooperation with Louisiana agriculture officials, have established a federal quarantine area for huanglongbing (HLB; citrus greening), caused by Candidatus Liberibacter asiaticus, in all of Saint Charles Parish in Louisiana. The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (USDA APHIS) took the action in cooperation with the Louisiana Department of Agriculture and Forestry (LDAF). …
Robert Gilbert, who has served the past six months as University of Florida (UF) interim senior vice president for agriculture and natural resources, will serve in a full leadership role for at least another 18 months. Gilbert has served as University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research dean and interim senior vice president while Scott Angle …
Citrus production in the Southeast has spiked due to increased warmer temperatures in recent years. This is reflected in the new U.S. Department of Agriculture Plant Hardiness Zone Map. The updated hardiness zones show a region that is more conducive to growing crops than it has been in prior years. The concern over colder temperatures has dissipated due to global …
Mexico’s Ministry of Agriculture and Rural Development recently pointed out ways the country has successfully dealt with huanglongbing (HLB), the most devastating disease of citrus worldwide. The ministry reported that the disease has triggered socioeconomic problems in other citrus-producing countries and regions in the Americas, Africa and Asia. “With appropriate agronomic-phytosanitary management, the life of affected trees can be prolonged, …
By Randall P. Niedz, Guilherme Locatelli, Nick Larson, Lorenzo Rossi, Ellen Cochrane and Michelle Heck Scientists at the U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) developed an idea to bypass lab assays and test molecules directly in the field for their ability to solve HLB. As part of a USDA National Institute of Food and Agriculture (NIFA) grant (number 2020-70029-33176), …
By Davie Kadyampakeni Huanglongbing (HLB) is a citrus disease that affects the growth of the fibrous roots of citrus trees. This means that HLB-affected trees may have reduced root volume, which impacts water uptake. A greenhouse study was conducted from October 2019 to July 2021 at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and …
Orange and orange juice (OJ) production in Morocco are both projected to be higher in 2023–24 than in the previous year, according to the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS). FRESH ORANGESOrange production in 2023–24 is expected to increase by 5%, reaching 820,000 metric tons (MT). The increase is due to improved weather conditions during the growing …
A U.S. Department of Agriculture (USDA) scientist and his team are hopeful that some so-called “long-shot” varieties will pay off in the effort to find HLB-tolerant grapefruit. Matthew Mattia of the USDA Agricultural Research Services (ARS) U.S. Horticultural Research Laboratory in Fort Pierce, Florida, found the varieties at the A.H. Whitmore Foundation Farm in Groveland, Florida. The varieties are Florida …
The U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) has forecast that South Africa’s tangerine/mandarin production will total 740,000 metric tons in 2023–24, up 4% from the prior season. Young trees coming into production is a primary reason for the increase. PLANTING EXPANSION SLOWSSouth Africa has 27,500 hectares of tangerines/mandarins, also known as soft citrus. The rapid expansion in …
By J. Scott Angle, jangle@ufl.edu, @IFAS_VP My job is to help you make money. By changing the way the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) does business in pursuing citrus solutions, I hope to change your business for the better. We’ve just launched a UF/IFAS Crop Transformation Center (CTC). It has the potential to speed delivery …
Federal and California officials have expanded a Mediterranean fruit fly (Medfly) quarantine in Los Angeles County and an Oriental fruit fly (OFF) quarantine in San Bernardino and Riverside counties. The actions were 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). The expansion of both …
