Artificial Intelligence Could Help Citrus Growers Detect Psyllids

Daniel CooperCitrus Greening, HLB Management, Industry News Release, Psyllids, Research, Technology

Kaolin Clay

Precision agriculture engineer Yiannis Ampatzidis sees a day when citrus farmers use artificial intelligence (AI) to detect the pin-sized insects that can infect the fruit’s trees with the deadly greening disease. That day could come in the near future, because Ampatzidis and his research team are starting to perfect a system to detect the potentially deadly Asian citrus psyllid. Citrus … Read More

May 4 Is National OJ Day

Tacy CalliesOrange Juice

new york times

Ray Royce of the Highlands County Citrus Growers Association reminds citrus industry members that this Saturday, May 4 is National OJ Day. “You are encouraged to think about how, even in a very small way, you can help assist in reminding your friends, neighbors and business associates that Americans have long had a love affair with orange juice,” says Royce. … Read More

Kaolin Impact on Psyllids and HLB

Ernie NeffHLB Management, Psyllids


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 researcher Christopher Vincent and graduate student Juanpablo Salvatierra Miranda report on their findings. Vincent says both white kaolin and red kaolin applications “had very low psyllid numbers” compared to a foliar insecticide treatment … Read More

Media Investigating Bactericide Use in Citrus

Ernie NeffBactericides


Potential human resistance to antibiotics as a result of bactericide use to treat HLB is the apparent topic of upcoming media stories. The Florida Department of Citrus (FDOC) has recently responded to national and local reporters’ questions about the topic. Questions “have mostly touched on resistance in humans,” according to an FDOC spokesperson. The spokesperson said the reporters were with … Read More

Citrus Production Cost Surveys Scheduled

Daniel CooperEconomics, Production

In an effort to continue to gather accurate production cost data for Florida citrus growers, University of Florida economist Ariel Singerman will be conducting two regional surveys. This will be the fourth year that Singerman has met with citrus growers to gather current production cost data. This information is important for a multitude of reasons, including citrus grove valuations for … Read More

Pathology Research for HLB

Ernie NeffHLB Management


Scientists from numerous countries attending the International Citrus Research Conference on HLB in March reported on pathology research that might help growers cope with the disease. Megan Dewdney, plant pathologist with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), summarized their reports at the recent Florida Citrus Growers’ Institute. Dewdney shares the research findings in the current … Read More

Grower Picks Favorites at Rootstock Trial

Ernie NeffRootstocks

Gardinier Florida Citrus General Manager Lee Jones named two rootstocks that looked appealing at an April 25 Citrus Research and Development Foundation (CRDF) rootstock field day in Highlands County. “(US) 942 kind of stands out to me,” he said. “(US) 812 looks good,” he added. “What we’re learning as we’re going is we’ve got to spoon feed this (citrus trees) … Read More

California Citrus Pest & Disease Prevention Program Report Released

Len WilcoxCalifornia Corner

The California Department of Food and Agriculture (CDFA) released the 2018 annual report from the Citrus Pest & Disease Prevention Program (CPDPP). According to the report, California citrus is a $3.3 billion industry, providing 21,600 jobs and covering 268,500 acres. HLB (huanglongbing, also known as citrus greening disease) is the leading threat in citrus today. In 2018, HLB was found … Read More

Saving Citrus Growers Time and Money

Tacy CalliesWater

Southwest Florida Water Management District’s Citrus Task Force aims to improve grower services. With the citrus industry facing challenges due to hurricanes, greening and reduced production, the Southwest Florida Water Management District (District) is working to improve services and business processes for citrus industry customers. SOLICITING FEEDBACKThat’s why District Executive Director Brian Armstrong formed the Citrus Task Force. It’s an … Read More

Sneak Peek: May 2019 Citrus Industry Magazine

Tacy CalliesSneak Peek

The May issue of Citrus Industry magazine offers something for everyone. The diverse range of article topics in this issue is sure to be of interest to readers. First, growers will want to read the latest research on citrus tristeza virus (CTV). Although this is an old problem in Florida, it’s still a threat today — especially if you are … Read More

Grapefruit Grown Under Protective Screens Maximizes Fruit Yield

Daniel CooperCitrus Greening, CUPS, Grapefruit, Industry News Release, Research


Growers of one of Florida’s signature citrus crops may see more production and possibly less of the deadly citrus greening disease. Researchers have worked for four years growing grapefruit under protective screens on a 1-acre experimental plot at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), and they’re seeing encouraging results. UF/IFAS scientists and a few commercial … Read More

All In For Citrus Podcast, April 2019

Taylor HillmanAll In For Citrus Podcast

April’s All In For Citrus Podcast has a different format than previous programs. This month’s podcast kicks off with a message from Michael Rogers, center director at the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center (CREC).  He gives a summary of the recent Florida Citrus Growers’ Institute that took place at the beginning … Read More

Soil and Water pH Play a Key Part in Nutrition

Tacy CalliesNutrition, Water


By Tripti Vashisth, Davie Kadyampakeni and Lushan Ghimire In the past few years, horticultural citrus grove management practices have changed significantly in Florida. It is a common observation across the state that huanglongbing (HLB)-affected trees respond well to complete and balanced nutrition programs. Therefore, citrus growers are currently focusing on intensive management of irrigation and nutrition. HLB-affected trees suffer a … Read More

Grove Border Control for Psyllids

Ernie NeffPsyllids

citrus greening

Controlling HLB-spreading Asian citrus psyllids along grove borders can be part of a cost-efficient psyllid control program, says University of Florida Institute of Food and Agricultural Sciences entomologist Lukasz Stelinski. “Psyllids are found in borders in much greater frequencies than any other place within the grove,” Stelinski says. “This is a place that they congregate … Anything that helps protect … Read More

What Will Come from Brazil?

Tacy CalliesCitrus, Global Perspectives


By Marcos Fava Neves On the supply side, Florida expects 77 million boxes of oranges this season. Valencias account for 46 million boxes, while non-Valencia represent 31 million boxes. With reports of smaller fruit, these figures may drop before the end of the processing season. SEASON STATUSIn general, the Florida weather has been favorable this season, allowing for a good … Read More

The Economics of Mesh Bags

Ernie NeffEconomics, HLB Management


Numerous Florida citrus growers have recently put mesh bags over individual young citrus trees to exclude HLB-spreading Asian citrus psyllids. A topic title at the 2019 Florida Citrus Growers’ Institute asked whether the practice is profitable. The presentation was made by University of Florida Institute of Food and Agricultural Sciences economist Ariel Singerman. “The answer to the question of whether … Read More

PIECES OF THE PAST: Noteworthy 1921 Tangelo Tree

Tacy CalliesPieces of the Past

I came across an article in the March 1921 issue of Citrus Industry that was titled “Tangelo Tree Attracts Attention” by W.B. Powell of Lakeconics. Two things caught my eye: 1) “Lakeconics” — where or what the heck was that!? and 2) the singular use of “Tree.” What was so special about this one tree? So, of course, I had … Read More

Critical Leaf Nutrient Thresholds to Diagnose Deficiencies in HLB Trees

Tacy CalliesHLB Management, Nutrition

By Arnold Schumann, Laura Waldo, Tripti Vashisth, Alan Wright and Kelly Morgan Huanglongbing (HLB) disease severely impacts the nutrient status of citrus trees, particularly by stunting the feeder roots and causing measurable deficiencies of nutrients in the roots and canopies. Visible symptoms of nutrient deficiencies on citrus foliage are characteristic but not diagnostic of HLB disease. Recent HLB research efforts … Read More

Indian River Citrus Trials Discussed

Ernie NeffCUPS

HLB, irrigation, nutrition

Researcher Rhuanito “Johnny” Ferrarezi recently discussed experiments on citrus varieties and citrus under protective screen (CUPS) in the Indian River area. Ferrarezi is a University of Florida Institute of Food and Agricultural Sciences assistant professor of citrus horticulture at the Indian River Research and Education Center (IRREC). One large trial Ferrarezi discussed will be of grapefruit, navel and mandarins on … Read More

Grower/Hedger Has Labor Concerns

Ernie NeffLabor


Discussions about citrus labor frequently focus on concerns about a shortage of harvesters and problems with the federal program that allows temporary foreign workers into Florida. But grower and hedger Frank Youngman recently voiced concern about a shortage of more skilled grove workers. Youngman said with tractors becoming “more technologically enhanced with GPS systems and so forth, we don’t have … Read More