An Alternative Approach to Citrus Greening

Josh McGillCitrus Greening, Florida, HLB Management

“Life as a citrus grower is a perilous journey,” says Chip Henry. Among the toughest perils the third-generation Florida grower has endured are the freezes of the 1980s, the threat of losing his land to highway construction, and the scourge of citrus greening. Henry’s story begins with the founding of O.E. McGuire Groves in Apopka by his maternal grandparents in …

Hunt Bros. Packinghouse Closing

Josh McGillPacking

The Hunt Bros. citrus packinghouse in Lake Wales will close for good at the end of this season, primarily due to the impacts of Hurricane Irma on company groves in 2017. The family-owned packinghouse opened in 1928. Frank Hunt III, an owner, discussed the closing in an April 22 letter to employees: “It was certainly our desire to keep it …

CRDF Focused on HLB Therapeutics

Josh McGillCRDF, HLB Management

The Citrus Research and Development Foundation (CRDF) held its April board of directors meeting to hear reports on projects involving 2,4-D, gibberellic acid, brassinosteroids and zinc. According to Rick Dantzler, chief operating officer of CRDF, the foundation is conducting a full-court press to study how these materials can combat fruit drop and improve quality. CRDF staff also presented a proposal …

Review of the 2020–21 California Citrus Season

Josh McGillCalifornia Corner, Citrus

California Citrus Mutual (CCM) released its 2020–21 Final California Citrus Season Perspective report, which included the following summary conclusion: For the majority of the season, the fruit quality was excellent. The movement was steady, and shippers managed to hold prices fairly steady. The crop size, however, proved challenging as the season drew on. The 2020–21 season may go down in …

Products Proven to Help With HLB

Josh McGillHLB Management, Research

Researchers offered updates on products proven to help against the devastating citrus disease HLB in a virtual seminar on April 27. University of Florida Institute of Food and Agricultural Sciences horticulturists Tripti Vashisth and Fernando Alferez discussed the benefits of gibberellic acid (GA) and brassinosteroids, respectively. Vashisth reported that GA-treated Valencia orange trees dropped less fruit and increased fruit yields …

Consistency Is Key in Rootstock Field Trials

Josh McGillRootstocks, Tip of the Week

By Bill Castle Today, at least three things seem to be true about Florida citrus rootstock field trials: There is an unprecedented number of them underway or soon to be planted. The sponsors are many, including the University of Florida, U.S. Department of Agriculture, Citrus Research and Development Foundation, Citrus Research and Field Trial Foundation and the Multi-Agency Coordination Group. …

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Integration of Nutrition and Crop Protection Products

Josh McGillNutrition, Pesticides, Research

By Davie Kadyampakeni and Evan Johnson In the era of citrus greening disease (huanglongbing, HLB), maintaining optimal nutrition and disease/pest management strategies is critical for avoiding adverse effects on tree performance. Use of the right fertilization rate, timing and placement are important for optimal citrus production. In a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research study, …

Consequences of Skyrocketing Fertilizer Prices

Josh McGillEconomics, Nutrition

By Ariel Singerman and Stephen H. Futch Chemical input prices have increased significantly over the last year. In particular, the price of fertilizer has roughly doubled during the last 12 months, as denoted by Figure 1. Figure 1. Producer Price Index of Nitrogenous Fertilizer Manufacturing Source: Federal Reserve Bank of St. Louis Supply and demand factors help explain such an …

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A Challenging Harvest Season for Alico

Josh McGillCitrus, Industry News Release

The current citrus harvest season “has been a challenging one for Alico,” the company stated in a late March press release. “In addition to a harvest season that was anticipated to produce less fruit than in the prior year, many of the state’s citrus groves, including Alico’s citrus groves, were impacted by a freeze event in late January 2022.” Nearly …

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Final Forecast for Brazil’s 2021–2022 Citrus Season

Josh McGillBrazil, Crop Forecast, International

According to Fundecitrus and its cooperators, the final 2021–2022 orange crop for the São Paulo and West-Southwest Minas Gerais citrus belt in Brazil is 262.97 million boxes. This final figure was 10.61% smaller than the initially expected volume published in May 2021, corresponding to a significant crop loss of 31.20 million boxes. This was an “on year” for the alternate-bearing, …

April Citrus Forecast: Florida Down, California Up

Tacy CalliesCrop Forecast

Florida’s Valencia orange crop forecast was cut by 13%, and the state’s grapefruit crop projection was trimmed by 8% in the April 8 forecast by the U.S. Department of Agriculture’s (USDA) National Agricultural Statistics Service. The Valencia crop projection was reduced by 3 million boxes, to 20 million boxes. Final fruit size is below the minimum, requiring 273 pieces of …

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U.S. Orange Juice Output to Hit 50-Year Low

Josh McGillForecast, Orange Juice

Total U.S. orange juice (OJ) production in the current 2021–22 season is forecast at 286 million single-strength equivalent (SSE) gallons, the U.S. Department of Agriculture’s Economic Research Service reported recently. If realized, this volume will be the lowest in more than 50 years. To compensate for lower production, U.S. OJ imports are expected to increase over last year, reaching more …

PIECES OF THE PAST: The Gate City of South Florida

Josh McGillPieces of the Past

By Brenda Eubanks Burnette In 1870, Gen. Henry Shelton Sanford purchased 23 square acres of land west of Mellonville, Florida, through the Sanford Grant from Spain. He planned a new city that he called The Gate City of South Florida, which he believed would become the transportation hub for Florida. In 1877, the city of Sanford was incorporated, and Mellonville …

How to Reduce Bingo Tree Loss to Stem Dieback

Josh McGillDiseases, Research

By Christopher Vincent, Megan Dewdney and Liliana Cano Bingo mandarin hybrid is a variety with many promising characteristics, but it brings specific challenges to profitable production. One challenge identified early in the push to plant Bingo was stem dieback that led to tree loss. After looking into this problem for the past four years, University of Florida Institute of Food …

IPCs Improve Fruit Yield and Quality

Josh McGillHLB Management, IPCs, Research

By Fernando Alferez, Ute Albrecht, Susmita Gaire, Ozgur Batuman, Jawwad Qureshi and Mongi Zekri University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers established a field trial in February 2018 to evaluate the efficacy of individual protective covers (IPCs) to prevent Asian citrus psyllids from spreading HLB and to study the effects on tree growth and physiology. The …

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Further Cuts to Florida Citrus Forecast

Josh McGillCrop Forecast, Florida

On March 9, the U.S. Department of Agriculture’s National Agricultural Statistics Service (NASS) reduced Florida’s orange and grapefruit crop forecasts again. Valencia oranges took the biggest hit, dropping 3 million boxes, or 12%, to 23 million boxes. The forecast for the non-Valencia crop, which is virtually all harvested, actually rose 500,000 boxes, or 4%, to 18.2 million boxes. That means …

New Research Shows How HLB Damages Trees

Josh McGillHLB Management, Research

Recent research describes in detail how HLB causes damage to citrus trees and presents the case that HLB is a pathogen-triggered immune disease. A pathogen-triggered immune disease results from the activation of an organism’s immune cells fighting a pathogen. Nian Wang, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor, took part in the research. This is the …

Florida Growers Detail CRAFT Projects

Josh McGillCitrus, Florida

There has been quite a bit of interest in the Citrus Research and Field Trials (CRAFT) program. During the Florida Citrus Show held in Fort Pierce in late January, a panel of citrus growers discussed projects they have been approved to conduct under CRAFT. Tamara Wood, executive director of the CRAFT Foundation, moderated the panel and provided an update on …

Picking Favorites at Florida Citrus Variety Display Day

Josh McGillCitrus, Florida, Varieties

The horticultural characteristics of new citrus varieties are important, especially in the era of HLB when disease tolerance is critical. But how the fruit tastes and other consumer attributes are equally important. That’s why citrus variety display days are vital in citrus breeding. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in …