Citrus acreage continues to increase across the North Florida, South Georgia and South Alabama regions. Interest has expanded to large row crop farmers, who see citrus as a viable alternative crop, said Kim Jones at the Feb. 17 Citrus Health Forum meeting at the University of Florida Institute of Food and Agricultural Sciences North Florida Research and Education Center. Jones …
Get Canker Before It Gets You
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 …
HLB Reduces Phytophthora Management Efficacy
The pathogen phytophthora has long presented problems for Florida citrus growers. But the HLB disease that has plagued Florida since 2005 reduces the efficacy of phytophthora management, citrus pathologist Ozgur Batuman reported in a recent virtual seminar. Batuman, who works for the University of Florida Institute of Food and Agricultural Sciences, said improved fungicide timing, number of applications and rates …
The Persistent Problem of Algal Spot
By Megan Dewdney Mid-summer to fall has become algal spot season in my office. The disease is re-emerging in Florida for unknown reasons. While much of the year algal spot is low key and hard to spot, between June and September it is very obvious. So, what is algal spot, should you be concerned, and what can you do about …
Ag Associations Seek to Block Chlorpyrifos Ban
Several agricultural associations filed suit in federal court Feb. 10 seeking to block the Environmental Protection Agency (EPA) from prohibiting the use of the pesticide chlorpyrifos on food crops beginning Feb. 28. The Georgia Fruit & Vegetable Growers Association is among those seeking the action. According to the American Soybean Association, which is one of those suing, the agricultural associations …
Sweet Orange Scab and Citrus Canker Movement Conditions Revised
The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) has revised the conditions for interstate movement of citrus fruit from areas quarantined for both sweet orange scab (Elsinöe australis, SOS) and citrus canker (Xanthomonas axonopodis, CC). The revisions allow for the movement of fruit to packinghouses located in contiguous states that are not quarantined for either disease. …
Grower Associations Object to H-2A Wage Methodology
Florida Citrus Mutual recently published the following statement about comments it submitted regarding the wage rate for temporary foreign H-2A workers: “On January 31, 2022, Florida Citrus Mutual, along with many other agricultural entities nationwide, submitted comments to the United States Department of Labor (USDOL) in reference to the proposed changes to the methodology for the adverse effect wage rate …
Sign Up Citrus Workers for Safety Program
Due to a surge in infections related to the COVID-19 Omicron variant, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) 2022 Ag Worker Safety Program is being offered virtually through June 30. It became available Feb. 1. UF/IFAS has alerted fresh citrus growers, packers and shippers about the program’s availability. This annual bilingual training is designed to …
Pests and Diseases in Trees With IPCs
All indications are that the recent widespread use of individual protective covers (IPCs) on young citrus trees in Florida is beneficial, especially for excluding Asian citrus psyllids and the HLB they spread. If there is any downside, it may be that some other pests and diseases are more prevalent under IPCs. In a recent American Society for Horticultural Science webinar, …
Can Zinc and Potassium Curb Fruit Drop?
The Florida citrus industry has been focused on finding solutions to the fruit drop problem that has hit groves hard in recent years. During the 2022 Florida Citrus Show in Fort Pierce, Fernando Alferez, University of Florida Institute of Food and Agricultural Sciences, assistant professor of citrus horticulture, presented findings from a research trial aimed at reducing fruit drop. The …
Be Alert for Citrus Canker in Alabama
Alabama Cooperative Extension implores growers to be on the lookout for symptoms of citrus canker disease in their trees. Commercial growers need to scout their trees regularly to stop the disease’s potential spread, says Kassie Conner, Alabama Extension specialist. “What we need people to do right now is look for these symptoms and report it if they find it,” Conner …
What to Do About Bingo Stem Dieback
By Christopher Vincent, Megan Dewdney and Liliana Cano Bingo is a relatively new and unfamiliar variety, which growers initially sought as a positive alternative. However, it presents some unique production challenges. Bingo is desirable because its high-quality, low-seeded fruits are ripe in October, a valuable harvest window for Florida growers. But in the early years of its propagation, some nurseries …
Georgia Grower Rapidly Reacts to HLB Find
By Lindy Savelle Earlier this year, a small grove owner in Grady County, Georgia, noticed some odd-looking trees in his grove. The leaves, having an asymmetrical discoloration, appeared to be nutritionally deficient. In an attempt to remedy the problem, the grower reached out to the Grady County Extension office for help. The Extension agent began his quest to figure out …
The Quest for Copper Alternatives for Managing Citrus Canker
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, …
Brazil’s Orange Crop Holding Steady
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 …
Trunk Injection Could Deliver the Kill Shot to HLB
There are many materials that will kill the bacteria (Candidatus Liberibacter asiaticus) that causes HLB. The challenge has been getting these materials to the place where the bacteria lives in citrus trees — the phloem. Some believe trunk injection might do the trick, but it is an expensive and labor-intensive practice that has limited any breakthroughs so far. During the …
Improving Color Break and Brix in CUPS
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. …
Fruit and Vegetable Consumption Severely Lacking in U.S. Adults
A new study published by the Centers for Disease Control and Prevention (CDC) found that only a small percentage of U.S. adults consume the recommended amount of fruits and vegetables. On average only 12% of U.S. adults meet fruit-intake and only 10% meet vegetable-intake recommendations outlined in the 2020-2025 Dietary Guidelines for Americans (DGA). Low intakes may put Americans at increased risk …
Alico Reports Higher Prices, Lower Yield
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 …
Keep an Eye Out for Postbloom Fruit Drop This Spring
By Megan M. Dewdney Postbloom fruit drop (PFD) is a flower disease mainly caused by the fungus Colletotrichum acutatum. The fungus is present on citrus trees throughout the year but survives by producing resting structures on leaves and stems. The fungus becomes stimulated to produce spores by substances from the early flowers. These early spores infect the initial flowers and …