Fruit fly quarantines impacting commercial citrus have been removed in Texas by the U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) in cooperation with the Texas Department of Agriculture (TDA). SAPOTE FRUIT FLY APHIS and TDA removed the sapote fruit fly (Anastrepha serpentina) quarantines in Cameron and Hildalgo counties. The quarantines included the Harlingen and Rio Hondo …
Disaster Relief Deadline Extended; Farmer Flexibility Increased
The U.S. Department of Agriculture (USDA) is extending the deadline for farmers to apply for Stages 1 and 2 of the Supplemental Disaster Relief Program (SDRP) to Sept. 30. Additionally, USDA’s Farm Service Agency (FSA) is providing greater flexibility for farmers who experienced quality losses on eligible crops. When applying for this program, farmers who experienced quality-related discounts can use verifiable and reliable documentation to …
USDA Report Highlights HLB Efforts
The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) highlighted huanglongbing (HLB) disease in the citrus section of its recent Plant Protection and Quarantine (PPQ) 2025 Annual Report. It recognized HLB as the most serious disease of citrus, currently impacting Florida and Texas and threatening citrus in Alabama, Arizona, California, Georgia, Louisiana and Mississippi. The report …
Quarantine Updates for California
Federal and state agriculture officials have taken actions regarding Mediterranean fruit fly (Medfly) and sweet orange scab (SOS) quarantines in California. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) in cooperation with the California Department of Food and Agriculture (CDFA) updated the quarantines. MEDFLY QUARANTINE REMOVED The agencies removed the Medfly quarantine in Alameda and Santa …
Understanding Crop Load and Alternate Bearing
By Fernando Alferez and Muhammad A. Shahid Citrus trees bloom profusely. It is estimated that a healthy adult tree can produce more than 200,000 flowers every year. This number is much higher than that of fruits the tree can maintain and develop. Normally only between 1% to 5% of flowers set fruit that develops, matures and can ultimately be harvested. …
FFVA Announces Emerging Leader Class 16 Members
The Florida Fruit & Vegetable Association (FFVA) announced the selection of 13 up-and-coming leaders for Class 16 of its Emerging Leader Development Program. The program is an immersive, hands-on experience addressing the critical issues facing Florida agriculture. It helps class members develop the skills needed to lead within FFVA and beyond. Since its inception in 2011, the program — administered …
Soil Fungi May Help With Manganese Toxicity
Beneficial soil fungi known as arbuscular mycorrhizal fungi (AMF) may help citrus trees tolerate toxic levels of manganese, according to new research. The findings could eventually lead to new management strategies for citrus grown in acidic soils where manganese toxicity can limit tree growth and productivity. An article about the study was published in the journal Tree Physiology. The research …
CRAFT Now Accepting Applications
The Citrus Research and Field Trial (CRAFT) Foundation has announced that applications are now open for Traditional New Plantings Cycle Eight and Existing Tree Therapies (ETT) Round Five. TRADITIONAL NEW PLANTINGS This program evaluates grower-selected rootstock and scion combinations under commercial growing conditions. EXISTING TREE THERAPIES This program evaluates therapeutic treatments designed to improve the health and productivity of mature …
California Growers and Nurseries Affected by Quarantine Expansions
The California Department of Food and Agriculture (CDFA) has expanded the huanglongbing (HLB) quarantine boundary in San Diego County following the confirmation of one HLB-positive residential citrus tree in Fallbrook. CDFA is also expanding the Asian Citrus Psyllid (ACP) Bulk Citrus Regional Quarantine Zone 6 to reflect the HLB quarantine boundary expansion. A map of the expanded boundary can be …
HLB-Tolerant Mandarin Hybrids Show Promise
As citrus growers continue searching for varieties that can perform under huanglongbing (HLB) pressure, researchers are looking beyond tree survival. Fruit quality, flavor and consumer acceptance are becoming increasingly important parts of the equation. A new study evaluated several HLB-tolerant mandarin hybrids and identified selections that combine disease tolerance with traits that could make them attractive for fresh-market production. An …
Pathologist Provides Update on HLB Spread in Georgia
Citrus greening disease continues to loom over the cold-hardy citrus region. While the industry expands in South Georgia and North Florida, the threat of the disease (also known as huanglongbing, or HLB) remains a focal point of citrus meetings, including on July 28 at the Southeast Georgia Citrus Update in Lyons. Jonathan Oliver, University of Georgia (UGA) assistant professor and …
Research Shows How HLB Progresses Through Trees
Recent research provides one of the clearest pictures to date of how huanglongbing (HLB) disease develops over time and affects different parts of a tree. An article about the research — “Microscopic Atlas of Citrus Huanglongbing Unravels Its Sequential Disease Development Mechanism” — was published in the journal Phytopathology. The authors are researchers Diann Achor, Camila Ribeiro, Jinyun Li and …
CSU Releases Final 2026 Atlantic Hurricane Season Update
Colorado State University (CSU) made little change to its 2026 Atlantic hurricane forecast in its final seasonal update on Aug. 5, but it did lower the probabilities of a major hurricane making landfall in the United States and tracking through the Caribbean. CSU continues to forecast nine named storms, four hurricanes and one major hurricane (Category 3 or stronger) for …
Australian Growers Aim to Save Halftime Orange Tradition
New Australian research reveals that the halftime orange is being squeezed out of junior sports, with the childhood ritual increasingly being replaced by sports drinks and packaged snacks. A YouGov survey showed that 93% of parents believed the halftime orange ritual was dying out. According to parents, fewer than 30% of kids are eating orange wedges at the halftime break. …
California Medfly Infestation Eradicated
State, local and federal agriculture officials have eradicated a Mediterranean fruit fly (Medfly) infestation centered in and around the City of San Jose, California. The eradication ends a 241-square-mile quarantine that began on Aug. 19, 2025. The California Department of Food and Agriculture (CDFA), the U.S. Department of Agriculture (USDA), and the Santa Clara County and Alameda County agricultural commissioner’s …
Enrollment Open for Florida Packinghouse and Nursery Grants
The Florida Department of Agriculture and Consumer Services (FDACS) recently announced that the enrollment window for citrus packinghouse and nursery equipment grants is open and will remain open through Sept. 1. FDACS is offering 70% cost-share funding to support equipment purchases, equipment refurbishment and related infrastructure repairs for eligible packinghouses and commercial citrus nurseries in Florida. PACKINGHOUSE COST-SHARE FDACS …
Grower Group Seeks Fungicide Strategy Refinements
The Minor Crop Farmer Alliance (MCFA) recently submitted comments to the Environmental Protection Agency (EPA) regarding EPA’s Draft Endangered Species Act Fungicide Strategy. The MCFA is a national coalition that represents growers, shippers and processors of specialty crops to advocate for science-based government pesticide and regulatory policies. The letter to EPA acknowledged improvements over previous endangered species proposals. At the …
New Research Tool Could Speed Search for HLB Treatments
A new research platform may help scientists identify potential treatments for citrus greening disease faster, potentially speeding up the search for solutions. Citrus greening, also known as huanglongbing (HLB), is caused by the bacterium Candidatus Liberibacter asiaticus (CLas). The disease disrupts the tree’s ability to transport nutrients, leading to symptoms such as blotchy leaves, small and misshapen fruit, poor juice …
Tools to Address Drought and HLB in Texas
Huanglongbing (HLB) has already taken a heavy toll on U.S. citrus production, but growers in Texas’ Lower Rio Grande Valley face an additional and compounding challenge — a persistent drought. Current irrigation practices relying on the Rio Grande River as the sole source of water are no longer sufficient to meet the year-round water needs of citrus trees. That is …
Using Kaolin Clay to Protect Against Sunburn
By John M. Chater Kaolin clay is used as a crop protectant in many crops, including tree crops like citrus. This clay is often white to grayish white and is commonly used to reduce sunburn on fruit and young trees. Kaolin also has been demonstrated to reduce pest feeding and activity in some tree crops. The albedo from the clay …




















