Plan Your Insect Management for 2021

Tacy CalliesPests, Tip of the Week

By L.M. Diepenbrock Insect and mite management is a year-round challenge in Florida citrus. With the warm climate, pests are at the ready as soon as plant resources are available to them. With knowledge of insect and mite biology in relation to tree phenology, plans can be developed to protect fruit and maintain productive citrus trees. Populations of many of …

Growers Tour Indian River CUPS Houses

Tacy CalliesCUPS

Citrus growers from several of Florida’s production regions joined researchers recently for a look inside 14-foot high screenhouses that protect trees from HLB-spreading Asian citrus psyllids. The CUPS (Citrus Under Protective Screens) Field Day took place at the University of Florida Institute of Food and Agricultural Sciences Indian River Research and Education Center (UF/IFAS IRREC) in Fort Pierce. Johnny Ferrarezi, …

Are Consumers Willing to Pay More for Florida OJ?

Tacy CalliesOrange Juice

Multiple studies point to the value consumers place on Florida citrus and their willingness to pay for the “Florida” brand. Lisa House, director of the Florida Agricultural Market Research Center and a professor in the Food and Resource Economics Department at the University of Florida, recently spoke on this subject in a Florida Department of Citrus webinar. She provided an overview of …

Georgia Trials Offer Rootstock Choices

Ernie NeffRootstocks

Ongoing citrus rootstock trials being conducted by University of Georgia (UGA) Cooperative Extension in Lowndes County hold promise for increased yields, improved fruit quality and greater disease resistance. Jake Price, UGA Extension agent and Lowndes County Extension coordinator, has six local citrus rootstock/variety trials with varying objectives. The trees are custom-produced by U.S. Department of Agriculture (USDA)-certified citrus nurseries in …

COVID-19 Impacts Mental Health on the Farm

Ernie NeffAgriculture, Survey

A strong majority of farmers and farmworkers say the COVID-19 pandemic has impacted their mental health, according to a new American Farm Bureau Federation (AFBF) poll. The poll also indicates that more than half say they are personally experiencing more mental health challenges than they were a year ago. The survey of rural adults and farmers/farmworkers reveals how the pandemic …

Job Opportunities Good for Ag Graduates

Ernie NeffEducation

A U.S. Department of Agriculture (USDA) report that projects strong employment opportunities for new college graduates interested in agriculture and related fields opened with a cautionary preface. Termed “A 2020 Pandemic Note,” it stated that the underlying study and preparation for the report began in September 2019, “when global socio-economic conditions were much different from today.” It stated that fewer …

Grower Sees Success With Oak Mulch

Ernie NeffProduction

Like several commercial Florida citrus growers, Ben Bateman of Brandon has noticed strong improvement in what he calls his “recreational grove” after applying oak mulch to the trees. Bateman planted 26 mixed-variety trees in large pots about six years ago, transplanting them to the ground five years ago. He said he spent nearly $1,000 on foliar nutrients “with little to …

china

China: Grapefruit Gains, Pomelos Stable

Ernie NeffChina

Total grapefruit and pomelo production in China in 2020-21 is forecast at 4.95 million metric tons, a negligible increase from the previous year, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported. The slight increase is mainly driven by production of grapefruit hybrids in Guangxi and Yunnan. “Though limited, this change is worth reporting as it reflects the beginning …

California Growers Reminded to Stay Alert

Len WilcoxCalifornia Corner, HLB Management

Jim Gorden, chair of the Citrus Pest and Disease Prevention Committee (CPDPC), is greatly concerned about the increase in sporadic Asian citrus psyllid (ACP) detections across California. Gorden sent an open letter to all citrus growers asking them to increase their vigilance against the pest and the risk of citrus greening, known as HLB disease. He said that “While the …

Avoid Salt-Out of Liquid Fertilizers

Tacy CalliesTip of the Week

By Ajia Paolillo The use of liquid fertilizers in citrus production has increased over the years. Liquid fertilizers offer the grower a way of applying frequent doses of fertilizer to trees to optimize nutrient efficiency. Now that the winter months are here with cooler weather and some cold nights, growers may face the issue of liquid fertilizer salting-out in the …

Argentina Lemon Production to See Sharp Drop

Ernie NeffCrop Forecast, International

Fresh lemon production in Argentina is forecast at 1.03 million metric tons in 2020-21, down 30 percent compared to the previous marketing year. The U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported these figures. Low spring temperatures seem to have significantly affected production and, coupled with the ongoing drought, resulted in reduced fruit size. As a result of the …

Weed-Control Strategies for Florida Groves

Tacy Calliesweeds

Weed management is a key component of Florida’s citrus production. A warm, humid climate and frequent rainfall provide a favorable environment for weed emergence and growth in citrus groves. Steve Futch, a former multi-county citrus Extension agent for the University of Florida Institute of Food and Agricultural Sciences, delivered a presentation during the 2021 virtual Southeast Regional Fruit and Vegetable …

pests

Traditional and Alternative Leafminer Control Methods

Tacy CalliesPests

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 due to their small size and because they are active only in the evening (dusk) and early pre-dawn hours. CLM adults can be monitored …

Kaolin Particle Film Reduces HLB Pressure

Tacy CalliesHLB Management

Researchers found use of kaolin particle film on trees reduced populations of HLB-spreading psyllids and delayed HLB infection. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor Christopher Vincent presented his research comparing red and white kaolin particle films with foliar insecticides during a recent UF/IFAS OJ Break webinar. According to Vincent, the particles of kaolin clay …

International Year of Fruits and Vegetables Launched

Ernie NeffIndustry News Release

The director-general of the Food and Agriculture Organization (FAO) of the United Nations, Qu Dongyu, recently launched the International Year of Fruits and Vegetables 2021 (IYFV 2021).   IYFV 2021 is dedicated to raising awareness about the important role of fruits and vegetables in human nutrition, food security and health. FAO is the lead agency for celebrating the year in …

China Tangerine and Mandarin Forecast

Ernie NeffChina

China is forecast to produce 23.1 million metric tons of tangerines and mandarins in 2020-21, a slight increase from 2019-20, the U.S. Department of Agriculture’s Foreign Agricultural Service reported recently. Looking further ahead, some industry insiders predict the overall growth rate of tangerine and mandarin production will slow in coming years. They expect local governments may become more conservative in …

Potential OJ Marketing Order Leaves Growers Hesitant

Tacy CalliesMarketing, Orange Juice

Many Florida citrus growers are skeptical of the proposed federal marketing order for orange juice (OJ). The proposed marketing order would allow all U.S. fruit used in OJ and all OJ imports to be assessed to share in the cost of marketing. This federal order, however, poses some potential drawbacks for Florida juice orange growers. The U.S. Department of Agriculture …

HLB: The Microbiome’s Role

Ernie NeffHLB Management

Researchers Caroline Roper and Nichole Ginnan at the University of California, Riverside led a large research collaboration that sought to explore the microbiome’s role in HLB disease progression. Their recent article in Phytobiomes Journal, “Disease-Induced Microbial Shifts in Citrus Indicate Microbiome-Derived Responses to Huanglongbing,” moves beyond the single-snapshot view of the microbial landscape typical of microbiome research. Their holistic approach …

Compost Use and Weed Management

Tacy CalliesTip of the Week, weeds

By Ramdas Kanissery Application of compost as a soil amendment could be an integral part of citrus production’s best management practices. Compost application can potentially improve soil quality and provide additional nourishment to trees. Citrus-producing soils in Florida are generally sandy and low in soil organic matter. Compost addition tends to enhance the soil’s ability to retain both nutrients and …

FDOC Update: OJ Sales, Supply and Demand

Tacy CalliesOrange Juice

Shannon Shepp, executive director of the Florida Department of Citrus (FDOC), reports that total orange juice (OJ) sales are performing at 2016 levels. “In the four week-period ending Dec. 26, 2020, average year-over-year sales of total OJ increased 7.68 percent with nearly 37.39 million equivalent gallons sold, according to the latest Nielsen retail sales update,” Shepp says. “Volume sales of …