Research Update: Stable Antimicrobial Peptide

Josh McGillPeptides, Research

By Hailing Jin Research on the effectiveness of a novel stable antimicrobial peptide (SAMP) identified from the Australian finger lime (Microcitrus australasica) to fight huanglongbing (HLB) continues in a multistate initiative involving 1,500 citrus trees. Although the pandemic has impacted the progress of the research, work has steadily continued and expanded.  Researchers at the University of California, Riverside and University …

orange

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, …

Gibberellic Acid Not Recommended in Spring for HLB Trees

Josh McGillHLB Management, Production, Tip of the Week

By Tripti Vashisth Recent research has shown benefits of gibberellic acid (GA) application (monthly from September to January) in improving yield and canopy density of HLB-affected trees. These findings have caught the attention of Florida citrus growers. Many have indicated that they are applying GA in their groves as per the University of Florida Institute of Food and Agricultural Sciences …

Extension Agents Still Seeing Damage From Freeze

Josh McGillFlorida, freeze, Weather

It often takes time for the damage associated with freeze events to manifest in citrus. That was the case for the late January freeze in Florida. While some growers escaped fairly unscathed, others suffered significant damage. The damage began to show in the U.S. Department of Agriculture’s March citrus crop forecast. The agency lowered expected production of Florida oranges this …

CRDF Changes Funding Procedures

Josh McGillCRDF

The Citrus Research and Development Foundation (CRDF) had a busy board of directors meeting in March. Rick Dantzler, CRDF chief operating officer, says the board utilized a new approach in seeking and approving research projects during the meeting. “The board advanced a number of research topics through the vehicle of ‘directed research’ where we negotiate with specific scientists who we …

citrus

All In For Citrus Podcast, March 2022

Josh McGillAll In For Citrus Podcast

March means spring break for many, and Florida is a favorite destination for students looking to celebrate the time off. Michael Rogers, director of the Citrus Research and Education Center in Lake Alfred, took the occasion to shine the light on the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus graduate program. Sixty-five students are currently engaged …

Growers to Gather at Citrus Institute

Josh McGillHLB Management, Research, Tip of the Week

By Chris Oswalt, Mongi Zekri, Ajia Paolillo and Lourdes Pérez Cordero Huanglongbing (HLB) continues to impact citrus-producing areas of Florida. The 2022 Florida Citrus Growers’ Institute is an opportunity for Florida citrus growers to come together to learn about effective management of HLB and other challenges affecting the industry. This year’s event will be held Tuesday, April 5 from 8:30 …

Black Core Rot Being Studied

Josh McGillDiseases, International, Research

A new Hort Innovation project aims to shed some light on how black core rot happens in Australian groves so the citrus industry can learn how to better manage the disease. Black core rot caused by the fungus Alternaria spp. can be a problem for some citrus growers in the southern growing areas in Australia. Citrus infected with Alternaria spp. …

Upcoming Events for Florida Citrus Growers

Josh McGillCitrus, Events, Florida

In the latest episode of the All In For Citrus podcast, Michael Rogers, director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, previews two upcoming events citrus growers will want to attend. The first is a Finger Lime Symposium. The half-day event will be held virtually from 1 p.m. to 5 …

Talking Citrus for 60 Years

Josh McGillCitrus, Florida

By Ernie Neff In every Florida citrus community, there are many growers who have been close friends most of their lives. They grew up in the country or small cities not far from each other, went to the same high schools and know the same people. They share the struggles — and before HLB, the joys — of growing citrus. …

Sneak Peek: March 2022 Citrus Industry

Josh McGillSneak Peek

The March issue of Citrus Industry magazine includes an abundance of advice on getting trees off to a good start. According to citrus grower Brad Turner, healthy soil is key to setting up trees for success. In his article, he gives growers pointers on soil preparation prior to planting. Other topics he addresses include mulch considerations, nutritional needs, pest management …

Get Canker Before It Gets You

Josh McGillDiseases, Tip of the Week

By Megan Dewdney Spring is around the corner, and Florida’s first wave of bloom is here. But there is no time to relax and enjoy the flowers because citrus diseases wait for no grower. Young fruitlets become susceptible to canker toward the end of March to the beginning of April. Missing that key window of protection — if the weather …

Florida Citrus Growers Say Freeze Damage Still Unfolding

Tacy Calliesfreeze

With more than two weeks past since the late January freeze in Florida, citrus growers are still assessing the fallout. Some key production regions saw the coldest temperatures in years. With HLB endemic, there’s a lot of unknowns how trees will react to the stress the cold temperatures induced. However, some growers didn’t have to wait to see damage to …

The Quest for Copper Alternatives for Managing Citrus Canker

Josh McGillDiseases, Research

By Ozgur Batuman, Sanju Kunwar and Ana Redondo There are new products that potentially can be added to a grower’s toolbox in coming seasons for managing citrus bacterial canker. Citrus canker is an infection by a species of bacteria (Xanthomonas citri subsp. citri) that causes fruit blemishes and fruit drop. It makes fruit unsightly and lowers its marketability. Every year, …

brazilian

Brazil’s Orange Crop Holding Steady

Josh McGillBrazil, Forecast, International

While the February Florida orange crop forecast saw a decline, Brazil’s February orange forecast is unchanged from its December forecast. Published on Feb. 10 by Fundecitrus and its cooperators, the third 2021–2022 orange crop forecast update for the São Paulo and West-Southwest Minas Gerais citrus belt remains at 264.14 million boxes. Should this forecast hold true until harvest ends, Brazil’s …

citrus

Improving Color Break and Brix in CUPS

Josh McGillCUPS, Production, Research

Arnold Schumann recently reported on what he called “the most successful and practical intervention for improving color break and quality in CUPS fresh fruit.” CUPS stands for citrus under protective screen, a growing technique that Schumann, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher, helped pioneer in Florida. He reported on his work at a Feb. …

Alico

Alico Reports Higher Prices, Lower Yield

Josh McGillAgriculture, Orange Juice, Production

Alico, Inc.  has seen an increase in the price per pound solids for oranges from $2.25 to $2.58 so far this season. A significant reason for the price improvement is the continued strength of consumption of not-from-concentrate orange juice by retail consumers, the company stated. Average pound solids per box were down for the fiscal quarter that ended Dec. 31, 2021. The pounds …

HLB: The Path Forward

Josh McGillHLB Management, Research

Rick Dantzler, chief operating officer of the Citrus Research and Development Foundation (CRDF), gave an update at the recent Florida Citrus Show on the latest efforts to find solutions to the HLB problem. Dantzler acknowledged the frustration growers have expressed in the long battle against the disease and the challenge it has presented to the research community. Because of this, …

Foliar Fungal Disease Round-up for 2022

Josh McGillDiseases, Florida, Fruit Drop

By Megan Dewdney The 2021 foliar fungal season was an easier than average year. The La Niña weather pattern predicted last fall came to pass, and the spring was relatively dry from January to the end of May with some rain in February and April. While citrus trees in Florida were likely drought-stressed, the dry weather slowed the usual decomposition …