Grower Sees Steady Production Without Chemical Fertilizer

Tacy CalliesHLB Management

By Owen “Sonny” Conner The two greatest challenges of the last 20 years, for me as a citrus grower, have been HLB and foreign competition depressing prices. Citrus growers had never faced a disease threat even approaching the devastating effects HLB has had on the industry. It was the industry killer we all feared would one day raise its ugly …

Citrus Leafminer Sampling Techniques

Tacy CalliesPests, Tip of the Week

By Xavier Martini Citrus leafminer (CLM) is a recurring pest in citrus groves that lays eggs on new growth shoots (flush). After hatching, larvae penetrate directly into the leaf and begin feeding on sap and leaving a serpentine mine in the leaf. CLM population dynamics are mostly driven by flushing pattern, with two flight peaks in early spring and late …

Sneak Peek: May 2021 Citrus Industry

Tacy CalliesSneak Peek

New citrus technology and tried-and-true techniques are among the article topics in the May issue of Citrus Industry magazine. Yiannis Ampatzidis, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor, discusses several ways artificial intelligence is being used to improve citrus production and reduce negative environmental impacts. Among the topics he covers in his article are automated …

citrus production

Grower Views Differ on Aldicarb Denial

Ernie NeffPesticides

Two growers expressed different views about the recent decision to deny the use of the pesticide aldicarb in Florida citrus. The denial was made by the Florida Department of Agriculture and Consumer Services (FDACS). One termed the decision “disappointing.” The other referred to it as a “a blessing.” “It is disappointing to lose any tool that would strengthen our existing …

Herbicide Adjuvants in Citrus Weed Control

Tacy Calliesweeds

By Ramdas Kanissery Adjuvants (derived from Latin, adiuvare: to aid or help) are materials added into an herbicide spray solution that improve handling, performance and crop safety. To be effective, an herbicide must overcome certain environmental and biological obstacles before entering and acting in the weeds. For example, environmental conditions like hot and dry weather will result in a thicker …

IPCs and Tree Performance

Ashley RobinsonHLB Management

Preventing HLB infection in newly planted citrus trees with individual protective covers (IPCs) can improve productivity and fruit quality. Thus far, IPCs have kept young citrus trees free of HLB in research plots. “Once you plant a tree, if it’s not protected, it’s exposed to HLB infection from day one,” says Fernando Alferez, an assistant professor at the University of …

citrus

All In For Citrus Podcast, April 2021

Taylor HillmanAll In For Citrus Podcast, Sponsored Content

A whole-systems approach to one University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) research project is the focus of the April All in For Citrus podcast. Citrus Research and Education Center Director Michael Rogers said the project is a good example of citrus researchers taking a more comprehensive look at problems in the industry. “We’re starting to put …

PIECES OF THE PAST: A Quatrain to Frame

Tacy CalliesPieces of the Past

By Brenda Eubanks Burnette In the July 15, 1933 issue of the Florida Clearing House News, an article by the Committee of Fifty titled “To Fit Demand to Production – ADVERTISE” caught my eye. Advertising has always been the tennis ball in the citrus industry’s battle over how much is enough and whether generic advertising really helps. The Committee of …

The Impact of Soil pH on Nutrients

Ernie NeffNutrition

In the April Central Florida citrus Extension newsletter, multi-county citrus Extension agent Chris Oswalt discussed the fate of the nutrients nitrogen, phosphorus and potassium in soils that have elevated pH values. Here’s most of the discussion he presented: Soil pH can affect several reactions involving nitrogen in the soil solution and the efficient use of this nitrogen by plants. Nitrification, …

Above-Average Hurricane Season Predicted

Ernie Neffhurricane

Colorado State University (CSU) researchers are predicting an above-average Atlantic hurricane season in 2021, citing the likely absence of El Niño as a primary factor. Tropical Atlantic sea surface temperatures are near their long-term averages, while subtropical Atlantic sea surface temperatures are much warmer than their long-term average values. The warmer subtropical Atlantic also favors an active 2021 Atlantic hurricane …

Nematode Identification With AI

Ernie NeffPests

Parasitic nematode damage in agriculture totals $125 billion around the world each year. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers hope to alleviate some of that destruction. The UF/IFAS scientists will use artificial intelligence (AI) to try to more rapidly identify nematodes. Some nematodes live in the ground and harm plants, while others are beneficial, so …

Tackling Weeds After Composting

Tacy CalliesTip of the Week, weeds

By Ramdas Kanissery The use of compost in tree rows is receiving increasing attention among citrus growers. The use of weed-free certified products can considerably minimize the weed emergence issues associated with compost use. However, eventually, weeds will start to grow in the composted areas in the grove. As compost and similar soil amendments prove to be very rich in …

Antibiotic Delivery Methods: Trunk Injection vs. Foliar Application

Tacy CalliesResearch

By Nabil Killiny and Christopher Vincent The citrus industry has suffered numerous setbacks over the past 20 years because of the devastating effects of huanglongbing (HLB) disease. Many options for controlling the disease are being investigated to make groves as productive as possible under the current HLB pressure. Even small improvements in tree health or yield of diseased trees may …

Managing Lebbeck Mealybug

Ashley RobinsonPests

University of Florida Institute of Food and Agricultural Sciences entomologist Lauren Diepenbrock provided an update on lebbeck mealybug during the 2021 Florida Citrus Growers’ Institute. The pest, first found in Florida commercial citrus in 2019, feeds on and damages citrus, causing up to 70% fruit drop in heavily infested groves. According to Diepenbrock, damaged fruit will not be marketable for …

More Storms in ‘Average’ Hurricane Season

Ernie Neffhurricane, Weather

The U.S. National Oceanic and Atmospheric Administration (NOAA) will issue its initial seasonal outlook for the 2021 hurricane season in late May. The Atlantic hurricane season officially runs from June 1 through Nov. 30. Beginning with this year’s hurricane season outlooks, NOAA’s Climate Prediction Center (CPC) will use 1991-2020 as the new 30-year period of record. The updated averages for …

Updates on Irrigation and Nutrient Management

Ashley RobinsonIrrigation, soil

Proper irrigation and nutrient management are necessary to maximize root density and tree health, especially in trees infected with HLB. Davie Kadyampakeni, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor, shared a few irrigation and nutrient research updates during the March episode of the All In For Citrus podcast. IRRIGATION RECOMMENDATIONS Young citrus trees require optimal …

citrus soil health

Enzymes: Longevity and Crop Yield

Ernie NeffResearch

In plants grown for food or other purposes, longer lasting enzymes could translate into increased yields, according to Andrew Hanson, University of Florida Institute of Food and Agricultural Sciences eminent scholar and professor. Hanson is the lead author of a recently published study in which researchers present a new benchmark for evaluating the durability of any enzyme. “Replacing enzymes is …

Diaprepes root wevil

Managing Citrus Root Pests

Ernie NeffPests

Nematologist Larry Duncan discussed efforts to control the root pests sting nematode and Diaprepes root weevil in his presentation during the virtual April 6 Florida Citrus Growers’ Institute. Duncan works at the University of Florida Institute of Food and Agricultural Sciences’ (UF/IFAS) Citrus Research and Education Center. The sting nematode and Diaprepes are especially concerning in the age of HLB, …

Everette H. Fischer Remembered

Ernie NeffCitrus

Everette H. Fischer, a citrus grower and former general manager of Winter Garden Citrus Growers Association (WGCGA), died April 5. Fischer, who was born Oct. 9, 1933 in Gotha, Florida, learned the art of citrus caretaking by hand as a young boy working with his uncles. After attending the University of Florida, he worked as a county agent helping farmers …

FDACS Cost-Share Program for Food Safety

Ernie Nefffinancial, Food Safety

The Florida Department of Agriculture and Consumer Services (FDACS) is offering a cost-share program for producers of specialty crops who obtain food-safety certification. Producers who obtained food-safety certification for specialty crop products (fruits, vegetables or tree nuts) through several programs could be eligible for reimbursement of 75% of certification costs, up to $1,500 per producer. Programs include the U.S. Department …