Louisiana HLB Quarantine Area Expanded

Tacy CalliesDiseases, Louisiana, Regulation

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). …

Update on UF/IFAS Leadership

Tacy CalliesIndustry News Release

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 …

How Mexico Has Dealt With HLB

Tacy CalliesHLB Management, Mexico

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, …

ReMedium TI®

Starting in the Grove to Find New HLB Therapies

Tacy CalliesHLB Management, Research

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), …

HLB-Affected Trees Use Less Water

Tacy CalliesHLB Management, Irrigation, Tip of the Week

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 …

Morocco Orange and OJ Production

Tacy CalliesCrop Forecast, International, Orange Juice

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 …

Taking a ‘Long Shot’ at HLB-Tolerant Grapefruit

Tacy CalliesCitrus, Grapefruit, HLB Management, Research

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 …

New Center to Accelerate HLB Solutions

Tacy CalliesBreeding, Technology

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 …

fruit fly

Expansion of Medfly and Oriental Fruit Fly Quarantines

Tacy CalliesCalifornia Corner, Pests, Regulation

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 …

Chilean Lemon Production to Climb

Tacy CalliesCrop Forecast, International, lemons

Lemon production in Chile is projected to grow 6.7% in 2023–24 compared to the previous season and reach 175,000 metric tons (MT), the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) reported. The expected production increase is due to high profits and an increase in planted area. The lemon planted area in Chile is estimated at 1,150 hectares, a …

Studying the Mechanisms for HLB Tolerance

Tacy CalliesAll In For Citrus Podcast, Research, Varieties

John Chater has been on the job now for two years, working with growers to evaluate variety performance in field trials. In the latest All In For Citrus podcast episode, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor discusses his work, including grower collaboration to study new varieties in real-world environments. Chater also talks about …

The Egyptian Orange Industry

Tacy CalliesCrop Forecast, International

Egyptian orange production in 2023–24 is projected to increase 2.7% from the prior season to 3.7 million metric tons (MMT), the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) reported. The increase in production is attributed to optimal weather conditions and temperatures during flowering of the trees, which increased fruit set and production. Oranges are the major citrus crop …

Assistance Available for Food-Safety Expenses

Tacy CalliesFood Safety

The U.S. Department of Agriculture (USDA) is reminding specialty crop growers that assistance is available for producers who incur eligible on-farm expenses to obtain or renew a certification through the Food Safety Certification for Specialty Crops (FSCSC) program. Producers can apply for assistance with their calendar year 2023 expenses through Jan. 31. FSCSC covers a percentage of the operation’s cost …

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 …

U.S. Lemon Crop on the Rise

Tacy Callieslemons

U.S. growers produced 1.12 million tons of lemons in 2022–23, an increase of 5.5% (or 58,000 tons) from last year, the U.S. Department of Agriculture’s Economic Research Service (USDA ERS) reported. One third of these lemons went to processing with the remainder going to the fresh market. California lemon production experienced rising acreage and yields with growers in that state …

Sticking to a Solid Production Plan

Tacy CalliesNutrition, Production, Soil Health

Matthew Machata grew up in Polk County on the family’s citrus farm, Rolling Meadows Ranch Groves in Lake Wales, Florida. After he graduated high school, he joined the Marine Corps and served two tours in Iraq. He then attended Auburn University, where he earned a degree in aerospace engineering. At the time, his plans didn’t include farming, but that changed …

Australian Orange Production to Increase

Tacy CalliesCrop Forecast, International

Australian fresh orange production is forecast at 530,000 metric tons (MT) in 2023–24 by the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS). This is a 5% increase over 2022–23 production of 505,000 MT. Producers expect to benefit from easing input costs and labor constraints in 2023–24. In particular, the costs of fertilizer and crop protection chemicals have reduced …

California Researchers Seek HLB Tolerance

Tacy CalliesCalifornia Corner, HLB Management, Research

University of California, Riverside (UCR) has received three federal grants totaling more than $11 million for research focused on instilling HLB-tolerance in citrus trees. The grants are from the U.S. Department of Agriculture’s (USDA) National Institute of Food and Agriculture (NIFA). The funding was enabled by the 2018 Agricultural Improvement Act, which authorized the Emergency Citrus Disease Research and Development …

Mulch Suppresses Psyllids in Young Trees 

Tacy CalliesPsyllids, Tip of the Week

By Jawwad A. Qureshi, Lauren Diepenbrock and Davie Kadyampakeni  Protecting citrus trees from the Asian citrus psyllid (ACP) is critical to reducing the spread and severity of huanglongbing (HLB) disease. The frequent availability of viable shoots in young trees is attractive to psyllid colonization, feeding and oviposition events. UV-metalized reflective mulches reflect ultraviolet light, which is disturbing for some insects …

Costa Rica Orange Production to Decline

Tacy CalliesCrop Forecast, International, Oranges

Production of oranges in Costa Rica in 2023–24 is expected to decline 15% from the prior year to 250,000 metric tons (MT), the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) reported. The decline is a result of unfavorable weather conditions in Northern Costa Rica associated with an El Niño weather system. Two companies, TicoFrut and Del Oro, control …