Although the Florida and California citrus industries may differ, they are both vulnerable to citrus greening disease. The brightest minds from both states are working to detect, manage and control this devastating disease. Most recently, University of California researchers have been working to find methods for early detection of huanglongbing (HLB), or citrus greening disease. AgNet West’s Taylor Hillman has …
New Method for Early HLB Detection
By Len Wilcox Early detection of citrus trees infected with huanglongbing (HLB) has become the target of researchers around the world, and scientists from the University of California (UC) now believe they have the answer. Early detection is vital for identifying HLB-positive trees before physical symptoms of the disease appear and it spreads throughout a grove. SMELLING THE SICKNESS UC …
Help for Florida Farmers Advancing in Senate
Farmers and other parts of Florida’s agriculture industry could receive about $75 million in post-Hurricane Irma assistance from the state next year under a measure moving forward in the Senate. The Senate Finance and Tax Appropriations Subcommittee on Tuesday unanimously backed the proposal (SB 1608) by Senate Agriculture Chairwoman Denise Grimsley, R-Sebring. The proposal, in part, would reduce property assessments …
OJ May Soon Come from HLB-Tolerant Fruit
Some people like to wake up and drink a glass of fresh Florida orange juice. With the greening disease ravaging Florida’s citrus industry, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers want to make orange juice from disease-tolerant fruit. Huanglongbing (HLB), or citrus greening as it’s commonly called, has destroyed 80 percent of citrus in Florida, a …
House Eyes Tax Help for Agriculture Industry
Florida’s Hurricane Irma-battered agriculture industry, growing anxious as it awaits federal disaster relief, could land some help from the state House as part of a tax-cut package. The House Ways & Means Committee, which is putting together a package, reviewed three measures Wednesday intended to help the industry, which sustained an estimated $2.5 billion in damages from the deadly September …
UF/IFAS Researchers Awarded $10.5M to Work on HLB Resistance/Tolerance
With citrus greening devastating Florida’s $8.6 billion-a-year citrus industry, three University of Florida scientists will use $10.52 million in federal grants to study ways to help growers cope with the disease, including research on genetic editing that may produce potentially resistant fruit and trees. Since greening — or huanglongbing (HLB) — was first reported in Florida in 2005, Florida’s citrus …
Sweet Orange Scab Detected in Alabama
U.S. Department of Agriculture (USDA) officials have confirmed the first detection of sweet orange scab (SOS) in Alabama. The fruit sample was collected in Baldwin County by Alabama Department of Agriculture and Industries’ (ADAI) plant protection inspectors during a delimiting survey for citrus greening disease. The Auburn University Plant Diagnostic Clinic provided the initial diagnosis of SOS, and USDA Animal …
Attacking HLB From All Angles
University of California Riverside (UCR) is committed to a major offensive against huanglongbing (HLB, or citrus greening disease), as the threat is marching ever closer to commercial citrus orchards in California. The only confirmed cases in Southern California have been in residential trees in Los Angeles and Orange counties, including near the UCR campus. But some experts believe it is …
Irma Agriculture Losses Continue to Mount
Florida’s $2.5 billion request for federal disaster relief for its agriculture industry after Hurricane Irma might not be enough. Members of the House Select Committee on Hurricane Response and Preparedness said on Nov. 16 that month-old damage estimates made by the Florida Department of Agriculture and Consumer Services are too low. “I actually think your numbers are conservative,” said Rep. …
70th Anniversary for Indian River Research and Education Center
A big event will take place Nov. 16 as the 70th anniversary of the Indian River Research and Education Center in Fort Pierce takes place. Jack Payne, University of Florida senior vice president for agriculture and natural resources, invites folks to attend. From Indian River Research and Education Center: Seventy years of service to growers in the world’s renowned grapefruit production region …
Florida Orange Crop Continues Downward Spiral
Florida’s struggling and storm-battered citrus industry took another hit Thursday as the orange crop forecast for the current growing season was reduced by 7.4 percent. And industry officials anticipate the forecasts will continue to decline as the season progresses. “Unfortunately, I don’t think this will be the last decrease we see,” said Shannon Shepp, executive director of the Florida Department …
See Science in Action at CREC’s 100th Anniversary Celebration
Oranges, grapefruit, tangerines and limes. Most people think of these as signature plants of Florida, but scientists have traced their origins back millions of years and across continental land masses, said Fred Gmitter, a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor of horticultural sciences. Scientists can describe the evolutionary paths of your favorite citrus, from prehistoric …
Specialty and Miscellaneous Varieties to Watch
Peter Chaires, executive director of the New Varieties Development and Management Corporation, recently spoke at the 2017 Central Florida Fruit Grower Day in Tavares. During his presentation, he discussed findings on specialty varieties from the 2016–2017 season, as well as some miscellaneous varieties catching the eyes of Florida growers. Chaires said he is seeing a lot of interest in some …
Commissioner Putnam Releases Initial Hurricane Damage Estimate
Florida Agriculture Commissioner Adam Putnam has released an initial estimate on agriculture damage from Hurricane Irma. The estimate will serve as a baseline for policymakers as they create a disaster relief package for those impacted by the storm. Although these estimates are not final, they are a starting point. The document includes estimates on crop loss and cost of damages. …
Organic Management for HLB
By Jaci Schreckengost One of the topics researchers and growers discussed at the 2017 Organic Food & Farming Summit was what can be done organically to combat huanglongbing (HLB), also known as citrus greening disease. Florida Organic Growers hosted the summit in Gainesville. It featured many workshops in which researchers and growers could discuss challenges and management practices. Tripti Vashisth, …
Impact of Temperature on Psyllid Survival
By Nabil Killiny and Steve Futch Citrus growers frequently inquire if Florida temperatures in the summer or winter are sufficiently high or low enough to control or suppress the Asian citrus psyllid (ACP). This question is the subject of this short article. The reason growers pose the question about how temperature impacts psyllids is because ACP is a phloem feeder …
CRDF President on Bayer Partnership
We first told you last week that the Citrus Research and Development Foundation (CRDF) and Bayer CropScience had announced a new partnership during Citrus Expo to fight citrus greening. Various solutions are being researched, like genetically improved trees. But CRDF President Tom Jerkins knows help is needed before those trees are ready. Sponsored ContentTake the Sting Out of Fire AntsApril …
CUPS Test to Begin at California Research Center
University of California (UC) scientists at the Lindcove Research and Extension Center (LREC) will soon begin to test the effect of growing citrus under protective screen (CUPS). CUPS is a proposed new method of controlling huanglongbing (HLB), or citrus greening disease, by keeping psyllids, small insects known to spread the disease, away from the trees. The test will evaluate the …
Time to Get Serious About Trialing New Scion/Rootstock Combinations
By Jude W. Grosser and Frederick G. Gmitter It’s no secret that citrus greening disease, or HLB, continues to take a heavy toll on the beloved Florida citrus industry. It has been estimated that the industry will need to replant over 3 million trees per year for the next 10 years just to get back to normal. So the million-dollar …
Varieties: Replacing Hamlins with Early Valencias
University of Florida/Institute of Food and Agricultural Sciences plant breeder Jude Grosser makes a case for Florida’s citrus industry replacing Hamlin oranges with early-maturing Valencia oranges that he and others are developing. “I think that’s a no-brainer because Hamlins are having a really bad time with greening, and orange juice sales are declining,” Grosser says. “Hamlin is half our juice. …




























