The use of highly HLB-tolerant genotypes as interstocks on a tree with a Swingle rootstock and a Valencia scion infected with HLB is offering hope for help against HLB, Jude Grosser reports. Grosser is a plant breeder with the University of Florida Institute of Food and Agricultural Sciences at the Citrus Research and Education Center in Lake Alfred. “Virtually every …
Call for Proposals Is Coming Soon!
Column sponsored by the Citrus Research and Development Foundation The mission of the Citrus Research and Development Foundation (CRDF) is to advance disease and production research and product development activities to ensure the survival and competitiveness of Florida’s citrus industry through innovation. Since the inception of CRDF, the majority of investment has focused on HLB, while still addressing strategic topics …
Grower Discusses HLB Management Strategies
Jim Snively, vice president of grove operations at Southern Gardens Citrus, discusses his company’s management of HLB and the psyllids that spread it. He summarizes a presentation he made at the International Citrus Business Conference in March. “By reducing stress, the trees can deal with disease much better,” Snively says. “We’re doing this through continuous-type feeding or frequent feeding with …
Managing Mites in Florida Citrus
By Lukasz L. Stelinski, Jawwad A. Qureshi and Philip A. Stansly Florida citrus is host to four main groups of mites categorized by differences in lineage and morphology. However, only rust mites, spider mites and broad mites historically cause economic damage to commercially grown citrus in the state. The fourth group, referred to as false spider mites, are vectors elsewhere …
Steep Florida Grapefruit Production Declines
Most growers and professionals in the citrus industry are aware that Florida’s orange crop has declined due to diseases like citrus greening and natural disasters like Hurricane Irma. However, Florida’s grapefruit crop has been suffering tremendously as well, even more severely than Florida oranges. The Florida orange crop has dropped by 35 percent this year, while Florida grapefruit has dropped …
Single Breakthrough Discovery for HLB in Florida Unlikely
A single breakthrough discovery for managing citrus greening in Florida in the future is unlikely, says a new report by the National Academies of Sciences, Engineering, and Medicine. The committee that wrote the report called for a systems approach to prioritize research on the disease and strategically distribute resources for research to effectively manage the disease, which is the most …
International OJ Market Sees Some Positives
By Marcos Fava Neves The third Fundecitrus estimate of the season for the Brazilian orange crop on Feb. 11 was just shy of 400 million boxes. It is 3.13 percent larger than the last estimate in December, and 9 percent larger than the initial estimate published in May. Fruits are bigger and heavier, reaching 247 fruits per box. This is …
Research Reveals a New Direction for Halting HLB
New clues to how the bacteria associated with citrus greening infects the only insect that carries it could lead to a way to block the microbes’ spread from tree to tree, according to a study in Infection and Immunity by Agricultural Research Service (ARS) and Boyce Thompson Institute (BTI) scientists. Citrus greening, also known as huanglongbing (HLB), is a serious disease dramatically …
Growers Lose Lawsuit to Continue Ban on Argentinian Lemons
By Brian German The ban on Argentinian lemons will not be reinstated after growers lost a lawsuit filed in May 2017, trying to keep the imports out of the United States. The lawsuit filed by the U.S. Citrus Science Council, along with five growers, claimed that the U.S. Department of Agriculture (USDA) ignored science and based its reasons to lift …
ACP Pheromone to Improve Trapping
By Len Wilcox University of California Davis (UC Davis) researchers have identified the sex pheromone of the Asian citrus psyllid (ACP), a discovery which will lead to better methods of controlling the pest. The ACP is a major threat to citrus around the world. The psyllid is a tiny insect with the potential to wreak havoc as it spreads the …
Citrus Growers in Waiting Game for Hurricane Aid
Frustration is growing among Florida citrus growers awaiting the distribution of $2.36 billion in federal disaster-relief money for agriculture losses sustained in Hurricane Irma. “We’re still waiting, maybe not as patiently as we were to start with,” Florida Citrus Commission Chairman G. Ellis Hunt said Wednesday. President Donald Trump signed the disaster-relief package in February, five months after Hurricane Irma …
Homeowners to Receive Compensation After 17-Year Canker Battle
A legal fight over citrus canker has finally come to a close after 17 years. Citrus canker, which reappeared in Florida in 1986, is a bacterial disease that can cause blemishes on the fruit, and in some cases, can cause fruit to drop prematurely. Canker is usually spread by the wind, making it difficult to control. In 2000, Florida was …
Annual Meeting of the Florida State Horticultural Society
The Florida State Horticultural Society (FSHS) announces that it will hold its 131st annual meeting on June 10 through June 12, 2018, at the Renaissance Fort Lauderdale Cruise Port Hotel located at 1617 SE 17th Street in Fort Lauderdale, Florida. With over 100 technical presentations and special sessions with invited speakers, there will also be a welcome reception, Extension luncheon, …
Citrus Industry Priorities for the Next Farm Bill
Crop insurance fixes and the continuation of research funding are top priorities for the citrus industry when it comes to developing the new farm bill. Robert Guenther, senior vice president of public policy with the United Fresh Produce Association, recently discussed these issues with AgNet Media Founder and President Gary Cooper. They spoke during the recent Crop Insurance Industry Convention …
Georgia Citrus Association Taking Precautions Against HLB
Huanglongbing (HLB), or citrus greening disease, was a hot topic at the recent Georgia Citrus Association Conference held in Tifton. As the Georgia citrus industry continues to grow, it is taking precautions to prevent the spread of HLB. Lindy Savelle, president of the Georgia Citrus Association, said although HLB has not been detected yet in Georgia, the industry is preparing …
Hall of Famer Kahn: HLB Will Be Overcome
Sebring grower and grove manager Marvin Kahn, one of two inducted into the Florida Citrus Hall of Fame on March 9, says the industry will survive greening disease, or HLB. “I’m sure that we’ve got a real handicap now with this greening disease,” Kahn says. And no doubt we could have other diseases even following it. But with a real …
Browning to Take New Role in HLB Battle
Citrus Research and Development Foundation Chief Operations Officer Harold Browning will resign at the end of March to pursue HLB control strategies for Premier Citrus ApZ, a branch of Vero Beach-based Premier Citrus. At his new position, Browning says he will work “on further testing and commercialization of strategies to control HLB in the field.” Specifically, Browning will work with …
Foliar Nutrition Research Update
By Rhuanito S. Ferrarezi, Alan L. Wright, Kelly T. Morgan, Philip A. Stansly, Monica Ozores-Hampton and Robert Ebel Huanglongbing (HLB) or citrus greening is endemic in Florida, resulting in billions of dollars of losses since the state’s first detection in 2005. The disease induces visual symptoms in leaves and branches, while severely impacting citrus fruit yield and quality. Fibrous root …
Sen. Nelson Calls on Federal Agencies to Distribute Disaster Aid
U.S. Sen. Bill Nelson (D-FL) took to the Senate floor late Monday afternoon to urge the Department of Commerce and the Department of Agriculture to immediately release the disaster funding approved by Congress in February to help Floridians who are still recovering from Hurricane Irma. “It has been almost six months since Hurricane Irma struck Florida, and it’s been about …
California Researchers Work Toward Early HLB Detection
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 …