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Below you'll find a list of all posts that have been tagged as “Huanglongbing (HLB)”
There are many materials that will kill the bacteria (Candidatus Liberibacter asiaticus) that causes HLB. The challenge has been getting these materials to the place where the bacteria lives in citrus trees — the phloem. Some believe trunk injection might do the trick, but it is an expensive and labor-intensive practice that has limited any breakthroughs so far. During the …
Individual protective covers (IPCs) on citrus trees have become a more common sight in Florida groves in recent years. The bags that cover young trees exclude the Asian citrus psyllid (ACP) from feeding on the plants, thus protecting them from HLB. Some estimates suggest that more than 1 million IPCs are now deployed in the state’s citrus groves. During the …
Growers gathered in Fort Pierce last week for the Florida Citrus Show. More than 30 presentations and panel discussions were held during the two-day event. Topics covered included production, technology and markets. With the U.S. Department of Agriculture (USDA) predicting the smallest citrus crop in more than 70 years, urgency to seek solutions to HLB was high on the agenda. …
By Jawwad A. Qureshi and Azhar A. Khan The Asian citrus psyllid (ACP), Diaphorina citri, invaded Florida over two decades ago. The need to consistently suppress it became apparent soon after detection and particularly after discovering huanglongbing (HLB) disease, which it spreads. Managing HLB depends strongly on vector control to either reduce disease transmission of healthy trees or reinoculation. Single …
Megan Dewdney told citrus growers how to give young trees a good start in the face of HLB. Her Jan. 19 presentation was held at the Citrus Research and Education Center in Lake Alfred, where she is a University of Florida Institute of Food and Agricultural Sciences plant pathologist. Trees need a robust, established structural root system before they are …
By Lukasz L. Stelinskiand Jawwad A. Qureshi Asian citrus psyllids (ACP) are at the mercy of their host (citrus) for survival. They need flush to lay eggs and for the nymphs to develop. Prior to HLB, the majority of flushing had been fairly predictable and occurred in the early spring and late summer. The occurrence of flush in young trees …
In an open letter to California citrus growers, Jim Gorden, chair of the Citrus Pest & Disease Prevention Committee, emphasized the importance of cooperation of all growers to keep huanglongbing (HLB) at bay. Growers need to work together to coordinate treatments for maximum effectiveness. “As the threat of HLB continues, industry members know that the best way to prevent HLB …
A $1.5 million emergency grant is enabling scientists in citrus-producing states to find trees tolerant to the devastating citrus disease HLB. The disease has crippled Florida’s citrus industry and has already been detected in California, which grows 80% of America’s fresh citrus. The National Institute of Food and Agriculture is supporting scientists at the University of California, Riverside (UCR); the University …
Results show promise for organic groves, but more research is needed. Since it was first discovered in the United States in 2005, the bacterial disease known as citrus greening, or Huanglongbing, has devastated millions of acres of citrus crops throughout this country and abroad, ravaging citrus groves in Asia, Africa and South America. Citrus greening has impacted conventional and organic …
On Jan. 1, 2018, the California Department of Food and Agriculture (CDFA) implemented an emergency regional quarantine to more effectively protect California citrus from huanglongbing (HLB) disease. The quarantine created seven zones: 1) counties where HLB has not been detected and are not next to citrus-producing counties or the Mexican border; 2, 3 and 4) counties widely infested with ACP …
by Jim Saunders, News Service of Florida Despite clear frustrations of some justices, the Florida Supreme Court on Thursday declined to invalidate Gov. Rick Scott’s veto of $37.4 million that lawmakers approved to compensate homeowners whose healthy citrus trees were cut down by the state more than a decade ago. The ruling pointed to circuit court cases in Broward and …
by Brad Buck, University of Florida Institute of Food and Agricultural Sciences In the same year the University of Florida’s (UF) Citrus Research and Education Center (CREC) celebrates its 100th anniversary, Nian Wang believes he may be close to finding the “off switch” for greening, the disease devastating Florida’s multi-billion-dollar-a-year citrus industry. Wang, an associate professor of microbiology and cell sciences …
During the farm bill listening session hosted by the House Agriculture Committee on June 24 in Gainesville, funding to help fight HLB was a topic of discussion. Larry Black, a fifth-generation citrus grower and general manager of Peace River Packing Company in Polk County, had these comments for the committee. Sponsored ContentA Simpler, Safer and More Effective Way to …
