Advice on Picking Rootstocks

Ernie NeffRootstocks

Growers who attended a recent Citrus Research and Development Foundation (CRDF) rootstock field day in Highlands County should look at similar CRDF trials when deciding what rootstocks to plant. That’s the opinion of Jim Graham, a CRDF project consultant who spoke at the event last month. The same six rootstocks with Valencia scions that are in field trials in Highlands …

Redefining Orange Juice?

Ernie NeffOrange Juice

Some Florida citrus processors, scientists, grower representatives and others recently started discussions about the feasibility of changing the legal standard of identity for orange juice (OJ). Under current U.S. Food and Drug Administration standards of identify for OJ, only sweet orange can be used in OJ products without limitation. Only 10 percent of juice from mandarins or citrus hybrids can …

nutrition

Citrus Research and Field Trial Program Update

Ernie NeffResearch

A multimillion-dollar federal program to establish thousands of acres of citrus research field trials in Florida has undergone significant changes in recent months. The Citrus Research and Development Foundation (CRDF) spent much time on May 21 hearing about new developments in the Citrus Research and Field Trial (CRAFT) program. CRDF Chief Operating Officer Rick Dantzler summarizes developments in the timing …

Working Toward Better Orange Juice in the HLB World

Tacy CalliesBreeding, Orange Juice, Varieties

By Jude Grosser, Fred Gmitter, Yu Wang and Bill Castle It’s no secret that huanglongbing (HLB) has challenged the industry to maintain the outstanding quality associated with Florida orange juice. Moreover, increased prices and competition from new juice products and blends have reduced Florida orange juice consumption. We believe that improving the quality, especially flavor and color, of juice products …

brazilian

Brazil’s Orange Forecast Announced for 2019–2020

Tacy CalliesCrop Forecast

The 2019–2020 orange crop forecast for Brazil, published on May 10 by Fundecitrus in cooperation with Markestrat, FEA-RP/USP and FCAV/Unesp, is 388.89 million boxes. Box weight is 90 pounds. The forecast region includes São Paulo and the west-southwest Minas Gerais Citrus Belt. The total orange production by variety is forecast as follows:• 76.97 million boxes of Hamlin, Westin and Rubi …

florida all

Saving Citrus Growers Time and Money

Tacy CalliesWater

Southwest Florida Water Management District’s Citrus Task Force aims to improve grower services. With the citrus industry facing challenges due to hurricanes, greening and reduced production, the Southwest Florida Water Management District (District) is working to improve services and business processes for citrus industry customers. SOLICITING FEEDBACKThat’s why District Executive Director Brian Armstrong formed the Citrus Task Force. It’s an …

brazilian

What Will Come from Brazil?

Tacy CalliesCitrus, Global Perspectives

By Marcos Fava Neves On the supply side, Florida expects 77 million boxes of oranges this season. Valencias account for 46 million boxes, while non-Valencia represent 31 million boxes. With reports of smaller fruit, these figures may drop before the end of the processing season. SEASON STATUSIn general, the Florida weather has been favorable this season, allowing for a good …

Critical Leaf Nutrient Thresholds to Diagnose Deficiencies in HLB Trees

Tacy CalliesHLB Management, Nutrition

By Arnold Schumann, Laura Waldo, Tripti Vashisth, Alan Wright and Kelly Morgan Huanglongbing (HLB) disease severely impacts the nutrient status of citrus trees, particularly by stunting the feeder roots and causing measurable deficiencies of nutrients in the roots and canopies. Visible symptoms of nutrient deficiencies on citrus foliage are characteristic but not diagnostic of HLB disease. Recent HLB research efforts …

HLB, irrigation, nutrition

Indian River Citrus Trials Discussed

Ernie NeffCUPS

Researcher Rhuanito “Johnny” Ferrarezi recently discussed experiments on citrus varieties and citrus under protective screen (CUPS) in the Indian River area. Ferrarezi is a University of Florida Institute of Food and Agricultural Sciences assistant professor of citrus horticulture at the Indian River Research and Education Center (IRREC). One large trial Ferrarezi discussed will be of grapefruit, navel and mandarins on …

IMG Citrus Adds 4,000-Acre Grove to Portfolio

Daniel CooperCitrus, Industry News Release

The future of Florida citrus is bright. IMG Citrus, a family-owned, vertically-integrated citrus grower, packer and shipper in Vero Beach, Florida, announced the acquisition of one of the largest grapefruit groves in St. Lucie County. The 4,000-acre grove increases IMG’s control of citrus land management in Florida by over 75 percent, securing the company’s position as an established citrus leader …

Studying Citrus Roots in the HLB Era

Tacy CalliesRoot health

By Lorenzo Rossi, Ute Albrecht and Evan Johnson Citrus root systems are confronted with many challenges that limit resource availability needed for tree productivity. Challenges are compounded by huanglongbing (HLB), which now affects nearly all citrus trees throughout Florida’s production areas. Contrary to the above-ground portion of the tree, study of the below-ground portion is considerably more difficult. This article …

CRDF President on Field Trials and Communication

Ernie NeffCRDF

Citrus Research and Development Foundation (CRDF) President Larry Black discusses the organization’s potential role in large-scale field trials to demonstrate how citrus can be grown in the face of HLB. He also talks about a communication study showing how growers like to receive information about CRDF. The Citrus Research and Field Trial (CRAFT) program would be funded for approximately $8 …

June

All In For Citrus Podcast, March 2019

Taylor HillmanAll In For Citrus Podcast

March’s All In For Citrus podcast brings multiple citrus research updates to Florida’s citrus growers. Listen to the latest episode of the All In For Citrus podcast. First, Michael Rogers, center director of the University of Florida’s (UF) Citrus Research and Education Center (CREC), discusses the upcoming Citrus Growers’ Institute. He discusses the planned seminar program, which is jam-packed with …

Sting Nematodes: A Growing Problem for Young Trees

Tacy CalliesPests

By Larry Duncan Successive hard freezes in Florida in the late 1980s resulted in widespread replanting of citrus groves. Within a few years, many groves on the Central Ridge had discrete patches of poorly growing, chlorotic young trees amid patches of vigorously growing trees. Stubby root symptoms on the declining trees suggested damage by sting nematodes (Belonolaimus longicaudatus). This nematode …

march

Florida Citrus Forecast: Oranges Steady; Other Crops Down

Daniel CooperCitrus, Crop Forecast

The March 2018-2019 Florida all-orange forecast released by the U.S. Department of Agriculture (USDA) is 77 million boxes, the same as the February forecast. If realized, this will be 71 percent higher than last season’s hurricane-affected production. ORANGESThe forecast for non-Valencia production has been lowered by 1 million boxes to 31 million boxes. The row count survey, conducted February 25-26, …

Florida orange

Update on the Florida Citrus Recovery Block Grant

Daniel CooperCitrus, Industry News Release

The Florida Citrus Recovery Block Grant (CRBG) program continues to move forward. As of Friday, the Florida Department of Emergency Management (FDEM) had received 718 applications and submitted more than $23.6 million to financial processing. FDEM staff has been working overtime to ensure the payments are received in an efficient manner. FDEM and the U.S. Department of Agriculture (USDA) Risk Management …

nutrition

Developments at CRDF

Ernie NeffCRDF

Citrus Research and Development Foundation (CRDF) Chief Operating Officer Rick Dantzler updated growers on CRDF activities during the Florida Citrus Show in January. He summarized his comments in an interview after his presentation. Here are a few key points: “We’ve had a 25 percent reduction in our staff” since he joined CRDF last year, Dantzler said. “Growers are having to …

acp

Researching Scouting Strategies for ACP

Daniel CooperCitrus, Psyllids

Several research projects continue at University of California Riverside to evaluate strategies for better detection of Asian citrus psyllid (ACP). Monique Rivera, assistant cooperative Extension specialist, is looking into something referred to as the ‘edge effect’ and how it pertains to ACP control. “The ‘edge effect’ is basically an ecological term that we’re using in the context of Asian citrus …

citrus

Orange Juice Market Outlook

Tacy CalliesGlobal Perspectives

By Marcos Fava Neves A recent Nielsen report reveals negative news for U.S. retail orange juice (OJ) sales. When comparing November 2018 with November 2017, the decline in OJ consumption was 7.4 percent. The value shrunk 3.4 percent, dropping from $223.94 million to $216.44 million. This represents a $7 million dollar loss. Not-from-concentrate juice came down 12 percent, and reconstituted …

Covers Protect Young Trees from HLB

Ernie NeffHLB Management

Individual protective covers (IPCs) on young trees have prevented HLB infection in one year of study, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher said. Fernando Alferez, citrus horticulturist at the Southwest Florida Research and Education Center (SWFREC), announced his promising results at the recent Florida Citrus Show in Fort Pierce. “They (IPCs) are protecting the …