Control of Citrus Flush Timing Could Improve Psyllid Control

citrus

They say timing is everything in life, and that’s certainly true of the Asian citrus psyllid, which has devastated Florida agriculture for the past decade by transmitting citrus greening disease, also known as huanglongbing or HLB. To reproduce, this small, flying insect must lay eggs on citrus “flush” – the tender new leaves and shoots that citrus trees produce several … Read More

Black Discusses HLB Research Meeting

Larry Black, president of Florida’s Citrus Research and Development Foundation (CRDF), attended a recent meeting in Fort Pierce to discuss HLB research prioritization and funding. He joined officials with other agencies that fund HLB, including California’s Citrus Research Board (CRB) and the U.S. Department of Agriculture (USDA). Black says the agencies met “to look at ways we can be more … Read More

Grower Wins Gun Safe at Citrus Expo

Congratulations to citrus grower Jimmy Carter of JK Carter Groves in Lake Wales, Florida, the winner of the John Deere gun safe giveaway at Citrus Expo 2018! This popular Citrus Expo annual giveaway is a tradition made possible by sponsorship from Everglades Equipment Group. All growers who pre-register for Citrus Expo are eligible for the drawing. Megan Price, Miss Florida … Read More

New Florida Citrus Production Guide Debuts at Citrus Expo

growers

Beginning this week, Florida citrus growers will have an updated resource to help them keep groves productive despite the ever-present threat of huanglongbing, the bacterial malady also known as HLB or citrus greening disease. Experts with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have just completed a 180-page technical handbook, “Florida Citrus Production Guide 2018-2019.” It … Read More

New Planting Options for Citrus Growers

By Fred Gmitter, Ed Stover, Randy Driggers, Greg McCollum and Jude Grosser The U.S. Department of Agriculture (USDA) Agricultural Research Service citrus breeding program has a long history of releasing successful scion and rootstock cultivars. There had been a 15-year lapse in creating new hybrids, and the recently released cultivars largely reflect breeding efforts that preceded the onslaught of HLB … Read More

Nutrient Recommendations for Citrus Greening

citrus greening

As Florida citrus growers look to recover from the damages of Hurricane Irma and continue to cope with citrus greening, University of Florida (UF) scientists suggest using a complete and balanced nutrient program in their groves. “Mineral nutrition plays a vital physiological role in the growth and development of a plant and as well as in plant-defense response,” said Tripti … Read More

‘No Positive Response’ from Bactericides

HLB

Citrus Research and Development Foundation (CRDF) President Larry Black discusses grower trial results indicating bactericides used for HLB infection did not increase citrus yields. The results were presented by CRDF staff at a recent meeting of the organization. Black says numerous growers who were using bactericides for HLB volunteered to leave sections of their groves untreated. “CRDF staff went out … Read More

Schulz on HLB Research Funding Session

hlb

Gary Schulz, president of the Citrus Research Board in California, discusses a recent meeting of agencies that fund HLB research. Representatives of Florida’s Citrus Research and Development Foundation and the U.S. Department of Agriculture also attended the two-day session in Fort Pierce, Florida. According to Schulz, the National Academy of Sciences within the past year recommended “that funding agencies for … Read More

Early Findings Show Plant Hormone May Help in HLB Fight

citrus greening

University of Florida scientists think a group of hormones may eventually help growers battle citrus greening, but they still want to study them before recommending growers use the chemical. Fernando Alferez, an assistant professor of horticultural sciences at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), leads a team of UF/IFAS researchers studying the effects of Homobrassinolides … Read More

Citrus Expo Is Next Week!

With more education, more exhibits and more diversity, growers won’t want to miss Citrus Expo 2018! Florida’s premier agricultural event for citrus, vegetable and specialty crop growers takes place Aug. 15–16 at the Lee Civic Center in North Fort Myers, Florida. Time is running out to pre-register for the event. Online pre-registration ends Friday, Aug. 10. Pre-registration helps save time … Read More

Rootstock Choice May Be Key in Tree Productivity

mandarin

Florida citrus growers recognize the Sugar Belle® mandarin hybrid for its tolerance of citrus greening disease, and new findings from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) suggest that rootstock selection may play a role in keeping Sugar Belle® trees productive even if they become infected with the bacterial malady. “We now have proof of concept … Read More

UF/IFAS Researchers Search for Solutions to Citrus Diseases with Citrus Initiative Funds

researchers

From nutritional supplements to managing irrigation to grower outreach and education, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are finding additional ways to support Florida citrus growers in their fight against citrus greening disease. Twelve projects were funded by the state legislature-funded Citrus Initiative program in 2017-2018 that looked at possible short- and long-term solutions that … Read More

Lemons in Florida: Something New Under the Sun?

By Fred Gmitter, Bill Castle and Jude Grosser King Solomon once pointed out that “there is nothing new under the sun,” meaning that what has happened before will happen again. Although the idea of growing lemons in Florida is viewed by some these days as a new thing, Florida actually has a fairly long history of lemon production. FLORIDA LEMON … Read More

HLB Alters Nutrition Needs

pests

Yield and fruit size are not good measurements of the nutrition needs of HLB-affected trees, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have discovered. “So we decided to go with something that’s fruit independent for the study,” says UF/IFAS scientist Arnold Schumann of the Citrus Research and Education Center at Lake Alfred. Schumann says he and … Read More

Texas A&M AgriLife Research, Consortium Get Grant for HLB Research

A Texas A&M AgriLife Research scientist at Weslaco will lead a consortium of researchers in major citrus-producing regions to conduct high-throughput screening in discovering antimicrobials that could prevent citrus greening. Citrus greening, also known as huanglongbing (HLB) disease, has devastated citrus fruit crops in Florida and has made its way to Texas and California. The research grant of approximately $1.2 … Read More

Brazil’s Citrus Forecast for 2018–19

Global Perspectives

By Marcos Fava Neves The season’s first orange crop forecast is one of the most important numbers of the year for Brazil’s orange juice business. The citrus forecast for 2018–19 was published on May 9 by Fundecitrus, in cooperation with Markestrat, University of São Paulo and São Paulo State University. SIZE AND VARIETIES Brazil expects 288.29 million boxes of oranges … Read More

The Sweet Spot

Moderate spacing and medium tree size could be the quickest way Florida growers can return to producing 100 million boxes of oranges per year. By Pete Spyke, Bill Castle and Ed Stover The Florida Department of Citrus (FDOC) recently released the results of a study originally titled “Restoring Florida’s Commercial Orange Tree Inventory: Economic Impacts of APS vs. Traditional Plantings.” … Read More

Chaires Succeeds Chadwell at Citrus Administrative Committee

Peter Chaires will succeed Arthur B. (Duke) Chadwell as manager of the Citrus Administrative Committee (CAC) on Aug. 1. Chadwell, who has managed the committee since January 1987, will retire today. Chaires becomes the fourth manager of the committee in its 80-year existence. He is also executive vice president of Florida Citrus Packers and executive director of New Varieties Development … Read More

Scientists Use Fungus to Manage Asian Citrus Psyllids

fungus

  Fighting plant disease with jet blast sprays is standard practice for citrus growers. But, to spray a fungus to control a single insect that carries a disease-causing pathogen is uncommon. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) and Florida Research Center for Agricultural Sustainability researchers have begun to test an insect-killing fungus applied with horticultural oil … Read More

Black Discusses New CRDF Chief Operations Officer

Citrus Research and Development Foundation (CRDF) President Larry Black discusses the organization’s recent selection of Winter Haven attorney and former state legislator Rick Dantzler as chief operations officer. “Rick wasn’t part of the original candidate pool, but his name emerged in recent weeks as a strong candidate, a good leader,” Black says. “He had a great track record as the … Read More