Major HLB Discovery Announced

Ernie NeffHLB Management

A University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher recently determined how bacterium causes the devastating citrus disease HLB. Information about further research into ways the discovery can help growers reverse the effects of HLB and improve tree health will be presented this fall.   MORE DETAILS TO COMEUF/IFAS Citrus Research and Education Center (CREC) Director Michael …

Kaolin Helps With ACP and HLB

Ernie NeffHLB Management

According to researchers in Florida and California, kaolin clay, especially red kaolin, aids in the management of Asian citrus pysllids (ACP) and the HLB they spread, among other attributes. Christopher Vincent of the University of Florida Institute of Food and Agricultural Sciences and Monique Rivera of the University of California at Riverside recently presented a webinar about kaolin. The University …

Landscape Fabric Blocks Diaprepes Larvae

Ernie NeffPests

Fabric mulch landscape covers, typically used to block weeds in nurseries, can aid in diaprepes root weevil control, Larry Duncan reported at the recent Citrus Expo. “Some of these products, not all of them, are extremely effective at blocking the diaprepes weevil larvae from getting into the soil” after falling from a citrus tree, Duncan said. Duncan is a University …

Gladstone Buys Florida Groves

Ernie NeffIndustry News Release

Gladstone Land Corporation announced that it acquired two lemon and orange groves, totaling 617 acres, in South Florida for approximately $5.2 million. In connection with the acquisition, it entered into a 12-year leaseback agreement with the seller. The organization did not respond to a request for information about the seller or the location of the groves. “We are excited to …

EPA Bans Chlorpyrifos on Food

Ernie NeffPesticides

The U.S. Environmental Protection Agency (EPA) announced it will stop the use of the pesticide chlorpyrifos on all food. It said it is taking the action to better protect human health, particularly that of children and farmworkers. In a final rule released in August, EPA is revoking all “tolerances” for chlorpyrifos. The tolerances establish an amount of a pesticide that …

Dry Winter Forecast Adds to Water Worries

Tacy CalliesCalifornia Corner, Water, Weather

The National Weather Service Climate Prediction Center is expecting a dry winter in Southern California. Specifically, it says the El Niño-Southern Oscillation is predicted to be neutral into the fall (51% chance for the August–October season), with La Niña potentially emerging during the September–November season and lasting through the 2021–22 winter (66% chance during November–January). The forecast comes on the …

production

World Production of Non-Orange Citrus

Ernie NeffCrop Forecast, International

The U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) recently reported on expected world production of tangerines/mandarins, grapefruit and lemons/limes in the 2020-21 marketing year. TANGERINES/MANDARINSGlobal output for 2020-21 is estimated to rise 4% to a record 33.3 million tons with growth expected in nearly every market. China’s production is projected to rise 1 million tons to a record 23 …

Glassy-Winged Sharpshooter Making a Comeback?

Tacy CalliesCalifornia Corner, Pests

The glassy-winged sharpshooter (GWSS) is a pest that made California headlines from the late 1980s until its suppression at the turn of the new century. Unfortunately, it made a fast comeback in 2020, probably due to unusually warm winter weather. A warm winter and spring caused populations in the southern San Joaquin Valley to surge. Kern County traps showed a …

zinc

Florida Production Faces Further Decline

Ernie NeffForecast, Production

Florida orange and red grapefruit production, already at historically low levels, will likely decline for years, according to a leading citrus economist. Tom Spreen, University of Florida Institute of Food and Agricultural Sciences professor emeritus, calculated Florida crop output through the 2031-32 season based on various yield and tree replacement assumptions. Oranges and red grapefruit are Florida’s top-producing varieties.   …

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 …

hlb

First HLB Detection in San Diego County

Len WilcoxCalifornia Corner, HLB Management

The California Department of Food and Agriculture (CDFA) has declared a quarantine in north San Diego County following the detection of the citrus disease huanglongbing (HLB), known as citrus greening. The disease was found in two citrus trees on one residential property in the city of Oceanside. This is the first time the plant disease, which does not harm people …

Citrus History Mystery Solved

Ernie NeffBreeding, Research

How modern citrus developed, particularly the popular mandarin variety, has long been a mystery to citrus breeders. A global partnership of scientists recently unraveled a big part of the mystery by analyzing the genome sequences of 69 East Asian traditional, wild and atypical citrus varieties. One of the researchers was Fred Gmitter, University of Florida Institute of Food and Agricultural …

World Orange and OJ Production to Rise

Ernie NeffCrop Forecast

Worldwide orange and orange juice (OJ) production are projected to climb in the 2020-21 market year, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported recently. ORANGESGlobal orange output for 2020-21 is estimated up 2.5 million tons from the previous year to 48.6 million as favorable weather leads to a larger crop in Brazil (up 7%) and Mexico (up …

California

HLB Control Has Been Costly for Growers

Len WilcoxCalifornia Corner, HLB Management

California’s efforts to keep huanglongbing (HLB) at bay have been largely successful. So far, the state’s huge citrus industry has avoided the devastating loss of trees that has occurred in Florida, South America and other commercial citrus-growing regions around the world. However, those efforts have come with a cost to citrus growers. Bruce Babcock, professor of public policy at University …

florida

Final U.S. Citrus Crop Forecast Sees Changes

Daniel CooperCrop Forecast

The U.S. Department of Agriculture’s (USDA) final 2020-2021 Florida orange forecast is 52.8 million boxes. California orange production edged out Florida with 54.5 million boxes of oranges. Texas oranges remained at 1.05 million boxes. The final Florida orange total is comprised of 22.7 million boxes of non-Valencia oranges (early, midseason and Navel varieties), unchanged from the June forecast, and 30.1 …

Supreme Court Rules on Ag Property Right

Ernie NeffLegal

The U.S. Supreme Court in June ruled that a nearly 50-year-old California regulation requiring agricultural businesses to allow union organizers to enter their property for a minimum number of hours and days each year is an unconstitutional taking without compensation. A California nursery and a shipping company had challenged the regulation as essentially creating an easement across their private property …

Apply for FFVA Leader Program

Ernie NeffEducation

The application period for Class 11 of Florida Fruit & Vegetable Association’s (FFVA) Emerging Leader Development Program is now open. The submission deadline is July 15.  Since 2011, more than 100 participants have graduated from the program, which develops leaders to be strong advocates for Florida agriculture. Graduates are expected to make lasting contributions to the industry and enhance their …

Making Sense of Biologicals: Improve Fruit Size and Quality

Tacy CalliesBiostimulants, MSOB

Citrus growers need as many tools in their toolbox as possible. With the Florida citrus industry decimated in recent years, mainly due to citrus greening disease, growers are exploring all options to help them succeed. CYAN 365®, a biostimulant from C Green Ag Biotechnology, is one tool that has proven to help enhance the quality and size of citrus crops, …

A Trojan Horse for Citrus Disease

Ernie NeffDiseases, Research

Scientists are hoping the RNA of an obscure infection can one day be used like a Trojan horse to deliver treatments to citrus trees, possibly to combat HLB disease. The infection, citrus yellow vein disease, was discovered 64 years ago in Riverside, California, and has never been seen elsewhere in the world. Decades later, University of California (UC) Riverside researchers …

Improving Productivity in Australia

Ernie NeffProduction, Research

A new research and development program launched by Hort Innovation aims to arm growers in Australia with the tools they need to produce more fruit, including citrus, and nuts per hectare. Hort Innovation is a grower-owned, not-for-profit research and development corporation for the nation’s horticulture industry. ABOUT THE PROGRAMThe 5-year $28 million National Tree Crop Intensification in Horticulture Program will …