Free ACP Scouting Service

Tacy CalliesCalifornia Corner, Psyllids

Through a grant from the U.S. Department of Agriculture (USDA), California and Texas citrus growers can apply for the use of detection dogs to survey their groves for Asian citrus psyllid (ACP). The ACP-hunting canine scouts are highly trained and have shown to be more than 90% accurate when tested in various environments. The information obtained from the scouting can …

standards

HLB: The Problem for Processors

Ernie NeffProcessing

Many stories have been written about the woes HLB disease has caused Florida’s citrus growers; fewer have been written about the problems HLB causes Florida citrus processors. Kristen Carlson presented the processors’ side of the story during the recent International Citrus & Beverage Conference hosted by the University of Florida Institute of Food and Agricultural Sciences. Carlson is executive director …

Nutrient Recommendations

The Fate of Phosphorus in Florida Citrus Soils

Ernie NeffNutrition, soil

Multi-county citrus Extension agent Chris Oswalt discussed the fate of phosphorus in Florida citrus soils in the September Extension newsletter, Citrus from the Ridge to the Valley. Excerpts from his article follow. The amount of phosphorus in soil is closely related to the potential availability of this phosphorus to plants … Potentially available soil forms of phosphorus are dependent on …

Alico

Florida Break-Even Yields and Prices

Tacy CalliesEconomics, Tip of the Week

By Ariel Singerman For processed oranges grown in Southwest Florida during 2020–21, the estimated cultural costs were $1,508 per acre. Total costs of production were $1,882 per acre. Those estimates are down $214 per acre compared to the previous season. This is the result of growers reducing costs across all grove programs, except for fungicides and irrigation. Such a cutback …

Stepping Up Phosphorus Sustainability

Ernie NeffEnvironment, Nutrition

Two University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have joined a national research effort to promote phosphorus sustainability across the United States. The researchers will work under the funding auspices of the National Science Foundation’s Science and Technology Center in the newly established Science and Technologies for Phosphorus Sustainability (STEPS). In addition to the University of …

marketing program

Citrus Juice Sales Update

Ernie NeffOrange Juice

Retail sales of orange juice (OJ) trended at pre-2019 levels throughout the 2020-21 season. And for the latest four-week period ending Sept. 11, OJ trended at pre-2017 levels. Economist Marisa Zansler recently presented this information to the Florida Citrus Commission (FCC). Zansler is director of economic and market research for the Florida Department of Citrus, which the FCC governs. Fueled …

CRDF

Regular Leaf Nutrient Analysis Improves HLB-Affected Trees

Tacy CalliesNutrition

By Tripti Vashisth and Davie Kadyampakeni Nutrition management is complex! Multiple factors affect the nutrient uptake and availability in trees. For example, high soil pH can limit the uptake of soil-applied micronutrients such as zinc (Zn) and manganese (Mn). Oxide forms of nutrients might be less available than nitrate or sulfur forms. Moreover, the time and method of nutrient application …

Cover Crops Can Benefit Citrus

Ernie NeffCover Crops

Cover crops, which are not planted for harvest and sale, offer numerous potential benefits to Florida citrus growers. The benefits and additional information were addressed in a presentation offered at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) booth at Citrus Expo in August. The crops can improve the physical, chemical and biological properties of the soil. …

greasy spot

Brown Rot Management Advice

Ernie NeffDiseases

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) multi-county citrus Extension agent Ajia Paolillo discussed brown rot management in the September Extension newsletter, Citrus from the Ridge to the Valley. Her article follows. As we move into September, it is essential to remember that brown rot can impact yield, especially early varieties. Brown rot is caused by either …

outlook

Production Dips in All Citrus States

Ernie NeffProduction

Citrus production in the 2020-21 season dipped in California, Florida, Texas and Arizona compared to the previous season. The U.S. Department of Agriculture’s National Agricultural Statistics Service (USDA/NASS) recently reported that total U.S. output of 6.9 million tons of citrus was down 12% from 2019-20. CALIFORNIATotal utilized production in California was down 3% in 2020-21. Orange production was off 7%, …

areas

UGA Lab Offers Free Testing for Citrus Greening

Tacy CalliesGeorgia

The University of Georgia (UGA) Plant Molecular Diagnostic Lab is a key resource for Georgia citrus growers hoping to stay sustainable. While it is a fee-based service lab for the UGA Department of Plant Pathology, it provides free testing for citrus producers concerned about citrus greening, says Jonathan Oliver, UGA assistant professor and small fruits pathologist. “The diagnostic lab here …

Shekels Joins Certis Biologicals

Ernie NeffIndustry News Release

Lee Shekels has joined Certis Biologicals in a newly created role, Florida citrus sales specialist. He will work with the company’s existing Florida sales and field development teams.  “Lee’s expertise and knowledge of the citrus industry will be key in bringing biologicals as proven crop protection tools to growers with sustainable product solutions to support growth in the industry,” said …

marketing

Florida Citrus BMPs: Update and Suggestions

Ernie NeffBMPs

Work on finalizing a newly revised citrus best management practices (BMPs) manual has slowed, and that’s a good thing, according to Highlands County Citrus Growers Association (HCCGA) Executive Director Ray Royce. In a recent HCCGA newsletter article, he stated that a number of issues, especially related to nutrient management and application efficiency, need to be better understood. “It is the …

Lessons on Yield and Root Health From Modified Nutrition

Tacy CalliesNutrition

By Davie Kadyampakeni, Evan Johnson, Kelly Morgan and Ali Atta Citrus production in Florida has been decreasing over the last 15 years due to several factors, with huanglongbing (HLB) a major driver. This disease has severe effects on citrus growth and production, including stunted vegetative growth, misshapen small fruits and poor color development, root mortality, stunted branches, excessive fruit drop, …

Improve Yields With Gibberellic Acid

Ernie NeffHLB Management

Many Florida citrus growers were among the approximately 300 people who registered for a Sept. 21 virtual seminar telling how gibberellic acid (GA) can improve Valencia orange yields. Valencias, at 30.1 million boxes, made up slightly more than half of Florida’s total citrus crop in the 2020-21 season. Presenter Tripti Vashisth started her presentation by saying that GA, already available …

New Fruit Crop Agent in Florida

Ernie Neffextension

Brandon White became the new commercial fruit crop agent for Lake and Orange counties on Aug. 16, working at the Lake County Extension office in Tavares. White was born and raised in Florida and lives in Ocoee. “Not having grown up in agriculture, I have been in it to some capacity for over a decade since I changed my major …

E-commerce Works, ‘Even in Wauchula’

Ernie NeffFlorida Department of Citrus

Florida Citrus Commission (FCC) Chairman Steve Johnson noted that as consumers continue to navigate life in a pandemic, growth of e-commerce shopping is expected to continue. “Even in Wauchula, Florida, Kroger delivery is taking hold,” Johnson wrote. Wauchula, with a population of about 5,000, is home to numerous citrus growers and grove workers. Johnson stated that the Florida Department of …

pests

Citrus Leafminer Control: Timing Is Everything

Tacy CalliesPests, Tip of the Week

By Lukasz Stelinski The citrus leafminer (CLM) remains a major pest of citrus throughout Florida. The adults are small, white/silver colored moths about half the size of a typical mosquito (Figure 1). Adults are difficult to spot because of their small size and because they are active only in the evening (dusk) and early pre-dawn hours. CLM adults can be …

Impact of High-Density Planting and Enhanced Nutrition on HLB-Affected Grapefruit

Tacy CalliesNutrition

By Rhuanito S. Ferrarezi, Waqar Shafqat, Hernan Soto, Mark Ritenour, Lorenzo Rossi,Davie Kadyampakeni, Evan Johnson and Kelly Morgan Florida citrus growers have been using high-density planting and different soil and foliar fertilizer application strategies to compensate for the adverse effects of huanglongbing (HLB). Recent studies indicate that high-density plantings and enhanced nutritional programs with higher micronutrient levels, such as the …

Insurance Improvements for Citrus From USDA

Ernie Neffcrop insurance

The U.S. Department of Agriculture’s (USDA) Risk Management Agency (RMA) recently announced improved and expanded insurance options for citrus growers and others. 2022 CHANGES FOR FLORIDANext year, Florida producers will be able to insure several citrus commodities under an Actual Production History Plan that offers advantages over the existing Florida Citrus Fruit Dollar Plan. This product provides individualized coverage based …