Cyprus

Biocontrol of Psyllids Is Successful in Cyprus

Daniel CooperBiologicals, International, Pests

Classical biological control is having a very significant impact on populations of the Asian citrus psyllid (ACP) in Cyprus, according to Ángel Marhuenda, director general of common agricultural policy for the Valencian Institute of Agricultural Research (IVIA). ACP is the vector of huanglongbing (HLB) disease. Marhuenda said, however, that “the detection of residual populations of the vector indicates that continued …

citrus mealybug

Citrus Mealybug Advisory Issued

Daniel CooperCalifornia Corner, Pests

University of California Agriculture and Natural Resources (UCANR) recently issued an Extension advisory regarding citrus mealybug. Citrus mealybug feeds on plant sap and is commonly found in protected areas of the tree, including under the calyx of fruit, in clusters of leaves and within dense canopy growth. Mealybug infestations can reduce tree vigor, contaminate fruit with honeydew and sooty mold, …

soil microbiome

Impact of Organic vs. Conventional Farming on the Soil Microbiome

Daniel CooperInternational, Organic, soil

An international group of authors recently reported on a study to investigate the impact of organic farming on the soil microbiome in citrus orchards. The authors are: The soil microbiota of eight conventionally and seven organically managed commercial citrus orchards across eastern Sicily were evaluated. FINDINGS The structure (diversity and relative abundance) and functionality of soil bacterial and fungal communities …

climate warming

Ag Pests and Climate Warming

Daniel CooperPests, Weather

A team of nine researchers led by University of California Davis (UC Davis) entomologist Mia Lippey recently published a paper on climate warming and the effect on agricultural pests. Their work, Field Data Challenge Predictions of Universal Crop Pest Proliferation Under Warming, appeared in the Proceedings of the National Academy of Sciences. It contradicts experiments indicating that arthropod crop pest densities will …

projects

Citrus Projects Funded by Plant Protection Act

Daniel CooperPests, Research, USDA

The U.S. Department of Agriculture (USDA) announced an investment of more than $90 million under Section 7721 of the Plant Protection Act to support 441 projects that will: Of the 441 projects, 421 fall under the Plant Pest and Disease Management and Disaster Prevention Program and 20 support the National Clean Plant Network. USDA will reserve approximately $17.2 million to support rapid …

leader

Leadership Program Offers Opportunities for Young Ag Professionals

Daniel CooperEducation

The Florida Specialty Crop Foundation is seeking applicants for Class 16 of the Emerging Leader Development Program (ELDP). Designed for professionals ages 25 to 40, the program has graduated more than 160 participants since 2011. Its purpose is to develop leaders to be strong advocates for Florida agriculture. Through immersive sessions and direct exposure to the industry’s top leaders, participants …

fruit fly

Fruit Fly Quarantine Updates

Daniel CooperPests, Regulation

The U.S. Department of Agriculture (USDA) Animal and Plant Health Inspection Service (APHIS) and state agriculture officials recently updated fruit fly quarantines in California and Texas. CALIFORNIA: ORIENTAL FRUIT FLY (OFF) On March 23, APHIS and the California Department of Food and Agriculture (CDFA) removed the OFF quarantine in Riverside and San Bernardino counties, designated the Jurupa Valley quarantine. This …

robot

Irrigation Robot Aims for ‘More Crop per Drop’

Daniel CooperCalifornia Corner, Irrigation, Technology

Water management is a major challenge facing agriculture in California and other dry regions. A new University of California Riverside (UCR) system can map soil moisture tree by tree, so growers water only where and when it’s needed. The system, detailed in the journal Computers and Electronics in Agriculture, is the work of Elia Scudiero’s research group. Scudiero is associate …

Citrus Mutual

Florida Citrus Mutual Reports on Washington Visit

Daniel CooperFlorida Citrus Mutual

Matt Joyner, executive vice president and chief executive officer of Florida Citrus Mutual (FCM), reported on a recent trip that he, FCM President Kevin Koppleman and other FCM staff members made to Washington, D.C. Citrus Research and Field Trial Foundation Executive Director Steven Hall accompanied the group. During their visit, the National Citrus Council convened to discuss challenges facing citrus. …

Forecast Projects Increased Florida Citrus Crops

Tacy CalliesCrop Forecast

Despite a winter freeze in Florida that many thought would reduce the citrus crop, the April 9 federal citrus forecast increased production estimates for all Florida varieties. The forecast by the U.S. Department of Agriculture National Agricultural Statistics Service (USDA NASS) also included forecasts for other U.S. citrus-producing states. FLORIDAThe new orange forecast for Florida is 12.2 million boxes, up …

crdf

CRDF Board Funds More Research Projects

Daniel CooperCRDF, Research

The Citrus Research and Development Foundation (CRDF) board of directors held a lengthy discussion about the upcoming merger with the Citrus Research and Field Trial (CRAFT) Foundation during its March meeting. Then the board considered research projects and funded four of them. A project by Hailing Jin of the University of California Riverside will test trees in Florida which contain …

sweet orange scab

Sweet Orange Scab and HLB Quarantines Updated

Daniel CooperCalifornia Corner, Diseases, Regulation

Agriculture officials announced the expansion of the sweet orange scab (SOS) quarantine and establishment of a new HLB quarantine area, both in California. SWEET ORANGE SCAB On March 11, the quarantine area for SOS in the Van Nuys area of Los Angeles County was expanded by 80 square miles. The U.S. Department of Agriculture Animal and Plant Health Inspection Service …

global

Global Grapefruit and Lemon/Lime Projections

Daniel CooperCrop Forecast, International

A recent U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) report — Citrus: World Markets and Trade — included global fresh grapefruit and fresh lemon/lime projections for 2025–26.  GRAPEFRUIT UP Global fresh grapefruit production is forecast up 2% to 7 million tons on larger crops in China, the United States and the European Union (EU). China production is forecast …

Global

Global Tangerine/Mandarin Projections

Daniel CooperCrop Forecast, International, Mandarins

A recent U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) report — Citrus: World Markets and Trade — included global tangerine/mandarin projections for 2025–26.  Global fresh tangerine/mandarin production is forecast up less than 1% to 38.4 million tons. Larger crops in China, Turkey, Morocco, South Africa and Japan more than offset smaller European Union (EU) and U.S. harvests. Processing …

plan

Georgia Needs Management Plan for Citrus Greening

Daniel CooperGeorgia, HLB Management

Citrus greening disease has yet to find its footing in Georgia’s commercial citrus. But if it does, Georgia’s growers need a plan in place to manage the disease. Lindy Savelle, executive director of the Georgia Citrus Association (GCA), emphasized that message during last week’s GCA annual meeting in Tifton. “There is a very small amount of the disease in commercial …

South Korean

South Korean Citrus Production and Trade Forecast

Daniel CooperCrop Forecast, International, Mandarins

The U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) recently forecast South Korean citrus production and trade for 2025–26. Tangerines and mandarins are the country’s dominant citrus varieties. TANGERINES/MANDARINS Korea’s tangerine/mandarin production is projected to increase 5.4% to approximately 570,000 metric tons (MT), thanks to favorable yield offsetting acreage loss.The tangerine/mandarin cultivation area in South Korea is projected to …

world

World Orange and Orange Juice Projections

Daniel CooperCrop Forecast, International

A recent U.S. Department of Agriculture Foreign Agricultural Service (USDA/FAS) report — Citrus: World Markets and Trade — included global fresh orange and orange juice projections for 2025–26. FRESH ORANGE Global fresh orange production is projected up slightly to 45.9 million tons on larger crops in Brazil and Egypt, more than offsetting decreased production in Turkey, the European Union and …

Influence of Rootstock on Growth, Productivity and Fruit Quality of Eureka Lemon

Tacy Callieslemons, Rootstocks

By Kim D. Bowman, Matt Mattia, Ranjeet Shinde and Flavia Zambon Profitability of the historic kings of citrus in Florida, sweet orange juice and fresh market grapefruit, has been severely reduced by the impact of huanglongbing (HLB) disease. Previous studies have demonstrated that lemon cultivars are generally more tolerant to HLB than sweet orange and grapefruit. Lemon trees continue cropping …

H-2A program

H-2A Program Use Soars

Daniel CooperLabor

The American Farm Bureau Federation (AFBF) recently reported key facts about use of the H-2A program. The vast majority of Florida citrus is harvested by temporary foreign workers through the H-2A program. The program continues to grow with 398,258 positions certified in fiscal year (FY) 2025. Nearly 50% of the certifications in FY 2025 work in just five states: Florida, …

Mexfly

Another Mexfly Quarantine Established in Texas

Daniel CooperPests, Regulation

Federal and state agriculture officials on Jan. 26 established a Mexican fruit fly (Mexfly) quarantine in Granjeno, Hidalgo County, Texas, designated the Granjeno quarantine. The U.S. Department of Agriculture Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA) took the action. APHIS and TDA established the Granjeno quarantine in response to the detection on Jan. …