Controlling Diplodia Stem-End Rot Before Harvest

Tacy CalliesDiseases

By Mark A. Ritenour, Jiuxu Zhang, Liliana M. Cano and Megan M. Dewdney The decay of fresh citrus fruit in Florida is usually caused by fungal pathogens that grow and develop in the hot and wet conditions typical to the state. While green and sometimes blue Penicillium molds and sour rot can cause Florida fruit to decay, the subtropical conditions …

Steger Forecast for 2021-22 Florida Orange Crop

Ernie NeffCrop Forecast

Private consultant Elizabeth Steger on Aug. 16 forecast Florida will produce 52 million boxes of oranges in the 2021-22 season — 1.5% less than the 52.8 million boxes produced in 2020-21. Steger projected 20.8 million boxes of early-midseason oranges; that’s less than the 22.7 million boxes produced last season. Her Valencia projection is 31.2 million boxes; that’s more than the …

Chilli Thrips a Potential Problem in CUPS

Tacy CalliesAll In For Citrus Podcast, CUPS, Pests

A modified way of producing citrus in Florida to protect against the Asian citrus psyllid may provide shelter for another pest — chilli thrips. Citrus under protective screen (CUPS) production systems protect against the psyllid and the huanglongbing (HLB) disease the pest transmits. However, according to University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Lauren Diepenbrock, the …

Assessing Spatial Patterns of Individual Protective Covers

Tacy CalliesIPCs

By Fernando Alferez, Ozgur Batuman, Susmita Gaire, Ute Albrecht and Jawwad Qureshi In previous and ongoing research performed at the Southwest Florida Research and Education Center (SWFREC), we have demonstrated that individual protective covers (IPCs) are effective in keeping psyllids off newly planted citrus trees. Trees have been HLB-free for more than two years after planting, and the IPCs provide …

Grower: Young Trees Look ‘Outstanding’

Ernie NeffProduction

In the face of production declines, pest issues and other challenges, multi-county Florida citrus grower David Wheeler of Wheeler Farms found something positive to report. “One bright spot is the health of our young trees,” he said. “They look outstanding and have been on a good program with a rotation of insecticides.” Wheeler Farms’ more mature citrus trees aren’t doing …

crop forecast

Help Trees Handle Heat

Tacy CalliesAll In For Citrus Podcast, Weather

Florida citrus production can be significantly impacted during the summertime heat. High temperatures with little to no rainfall can affect trees’ vegetative growth, fruit set and fruit quality, says Amir Rezazadeh, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) multi-county fruit and field crops agent. Heat is a factor that can cause citrus trees to become significantly dehydrated. …

Lake County Citrus Label Tour Kicking Off

Ernie NeffHistory

Florida’s Lake County Historical Society will kick off the Lake County Citrus Label Tour with dedication ceremonies at 12 locations in nine cities Aug. 23-26. This informative driving tour is steeped in the history of the county’s citrus industry. At each of 12 locations on the tour, large two-sided signs will each feature two antique citrus label reproductions. For 60 …

Team Seeks Measures Against HLB

Ernie NeffHLB Management, Research

Codex DNA, Inc. has announced a collaboration with researchers from several organizations to identify scalable therapeutic measures against HLB. The multidisciplinary team has been awarded a grant worth nearly $15 million from the National Institute of Food and Agriculture (NIFA) to develop cost-effective and sustainable solutions to the disease. Other collaborators include the U.S. Department of Agriculture’s (USDA) Agricultural Research …

Citrus Expo Offers New Information and Experiences

Tacy CalliesCitrus Expo, Tip of the Week

By Jamie Burrow and Ruth Borger Citrus Expo, hosted by AgNet Media with programming support from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), is being held in person Aug. 18-19 in North Fort Myers. Like in past years, UF/IFAS faculty will be presenting educational sessions on the latest information that growers can use to improve their …

Citrus Canopy Health Is Highly Important for HLB Tolerance

Tacy CalliesHLB Management

By Amit Levy and Tripti Vashisth In Florida, where almost all citrus trees are infected with huanglongbing (HLB), it is important to have an easy and reliable method to check the severity of the disease. Each tree responds differently to Candidatus liberibacter asiaticus (CLas), the bacterial pathogen that causes HLB. Compare it to COVID-19, where some people had the virus …

UF/IFAS Expo Booth Improved

Ernie NeffCitrus Expo

Growers have always left the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) booth at Citrus Expo with much information they can use in the grove. This year, the UF/IFAS citrus staff hopes to make a visit to the booth even more fruitful. “In the past, we have had two large booths and it has had many posters,” …

january

Alico Gets Higher Prices, Less Fruit

Ernie NeffIndustry News Release

Alico, Inc. received significantly higher prices for its citrus fruit in the 2020-21 harvest season, but had reduced box production and reduced average pound solids per box of fruit. The company’s average blended price for fruit was $2.45 per pound solids (PPS), up 31.7% from the $1.86 PPS it received the prior year. Alico cited “favorable industry supply dynamics” as …

Citrus Fiber Market to Expand

Ernie NeffMarket

The global citrus fiber market is expected to surpass $500 million by 2031, growing at a 6% annual rate, according to a recent report by market research firm Fact.MR. The firm reported that the citrus fiber market was about $300 million in 2020. It stated that as the COVID-19 pandemic unfolded, consumer eating habits switched to natural alternatives; that significantly …

Florida Citrus Packers

Grower: Last Season Had Ups, Downs

Ernie NeffGrapefruit, lemons

Vero Beach grower George Hamner reported having better production and size on his fresh market grapefruit and lemon crops in the 2020-21 season than in the prior year. He said grapefruit prices remained steady, similar to the prior year. “Lemons, however, were not as good as previous years because of the loss of food-service business … due to COVID-19,” he …

Making Sense of Biologicals – Biofertilizers: Improving Nutrition in Citrus Trees

Tacy CalliesMSOB, Nutrition

Citrus greening disease appears to be a problem for the foreseeable future for Florida growers. But what if growers could improve nutrition so trees could better cope with the disease? Scientists at Douglas Plant Health believe biofertilizers have that capability. “Think about it from a human health standpoint,” says Marcus Jones, vice president of research and development at Douglas Plant …

Sneak Peek: August 2021 Citrus Industry

Tacy CalliesSneak Peek

August brings the biggest issue of Citrus Industry magazine of the year! That’s due to the annual Citrus, Vegetable and Specialty Crop Expo on Aug. 18-19 in North Fort Myers, Florida. The August issue serves as the show guide to the event and includes the seminar schedule, an exhibitor directory and everything attendees need to make the most of the …

Treating Pathogens Without Antibiotics

Ernie NeffDiseases, Pests

Federal researchers announced that they have found an innovative way to treat pathogens (harmful bacteria) and pests in citrus trees and potato and tomato plants without the use of antibiotics. The researchers are with the U.S. Department of Agriculture’s (USDA) Agricultural Research Service (ARS). The research was done in collaboration with the University of Florida and AUM LifeTech Inc. The …

U.S. Grapefruit Exports to France Threatened

Tacy CalliesExport, Grapefruit

According to the U.S. Department of Agriculture (USDA) Foreign Agricultural Service, a new French ban on the sale of fruits and vegetables with identifying stickers could threaten future exports of U.S. grapefruit. The ban is slated to be implemented on Jan. 1, 2022. The USDA report states that most U.S. grapefruit and some sweet potatoes shipped overseas have stickers that …

symposium

Protect Citrus Trees From Heat Stress

Tacy CalliesWeather

By Amir Rezazadeh Heat stress affects the production of different citrus varieties, particularly seedless varieties. The severe effect of heat stress can be seen during the flowering and fruit set stage as well as June drop. High temperature can affect different growth stages of citrus trees, such as vegetative growth, flowering and fruit set. EARLY SIGNSThe following are early signs …

CUPS Tree Growth Surprises Growers

Ernie NeffCUPS

Brothers Jerry and Keith Mixon have been surprised by how well trees grow in their citrus under protective screen (CUPS) facilities in Alturas, Florida. “All of the varieties we are growing have responded amazingly,” they said recently about their CUPS experience. Though each brother has his own CUPS structures, they jointly discussed their results. The brothers have a combined 130 …