court

Court Blocks Controversial Pesticide

Dan Citrus, Environment, Huanglongbing (HLB)/Citrus Greening

(TALLAHASSEE/June 9, 2021) — In a victory for environmental and farmworker groups, an appeals court has overturned federal approval of a controversial pesticide that supporters say could help fight a disease that has caused heavy damage in Florida’s citrus industry. The decision this week by a panel of the U.S. Circuit Court of Appeals for the District of Columbia came …

pesticide

Florida Challenged Over Pesticide Decision

Dan Citrus, Cotton, Environment, Florida, Huanglongbing (HLB)/Citrus Greening, Peanuts

(TALLAHASSEE, Wednesday, May 12, 2021/NSF) — Amid arguments about the troubled citrus industry and the health of farmworkers, a chemical company is challenging a state decision to block a pesticide that could help fight a disease that has caused massive damage in citrus groves. AgLogic Chemical, LLC filed an administrative challenge Tuesday, about three weeks after the state Department of …

hlb

HLB Control: A New Potential Method

Dan Citrus, Huanglongbing (HLB)/Citrus Greening, Research

A University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher has found a material that can be used to silence essential genes within Asian citrus psyllids and in the HLB-causing bacterial pathogen that the psyllids spread. The material is  2’-deoxy-2’-flouro-d-arabinonucleic acid antisense oligonucleotides (FANA ASO), small-sized single-stranded nucleic acids.  The discovery was made by Kirsten Pelz-Stelinski, an associate …

citrus

Citrus Phenology-Based Spraying for Psyllids

Dan Citrus, Huanglongbing (HLB)/Citrus Greening

By targeting Asian citrus psyllids on an area-wide scale and focusing on several individual properties simultaneously, growers can minimize psyllid movement between groves, reduce HLB transmission and maintain citrus production at a profitable level. Generally, most psyllid sprays are applied on a calendar or threshold basis, resulting in high-spray frequencies and associated costs. Because of the Asian citrus psyllid’s high …

field

Field Trials for Cultivar Evaluation; Soil and Root Health

Dan Citrus, Huanglongbing (HLB)/Citrus Greening, Research

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus researchers are collaborating on ground-breaking research projects to fight against HLB. They are working with researchers at the University of California-Riverside (UC-Riverside), Texas A&M, and Washington State University on a project to field-test new citrus cultivars for tolerance or resistance to HLB. The research is funded by the U.S. …

tarping

Tarping Proven to Reduce ACP Movement

Dan Citrus, Huanglongbing (HLB)/Citrus Greening

Researchers at the California Data Analysis and Tactical Operations Center (DATOC) have analyzed Asian citrus psyllid (ACP) trapping data along major transportation routes before and after tarping regulations for bulk citrus shipments were enacted. The purpose was to determine the effectiveness of the policy. DATOC is an independent group of scientists sponsored by the Citrus Research Board and the California …

irrigation

Irrigation and Nutrition Management in the Era of HLB

Dan Citrus, Huanglongbing (HLB)/Citrus Greening, Irrigation, Water

A solid nutrition and irrigation program can enhance the productivity of HLB-affected trees and improve citrus tree health, potentially making production profitable even under HLB conditions. This was the subject of Davie Kadyampakeni’s talk during a March 9 OJ Break virtual meeting held for citrus growers. Kadyampakeni is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant …

canker

The Search for Canker-Resistant Satsumas

Dan Citrus, Huanglongbing (HLB)/Citrus Greening, Research

Citrus canker, a highly contagious bacterial disease of citrus, was first detected in Louisiana around 1914 and declared eradicated by 1940. However, the disease reappeared in the state in 2013. Right now, there are no effective treatments to eliminate the disease after the infection has occurred. Adding insult to injury, Louisiana’s hot and humid climate is especially conducive to the …

new research

New Research on HLB-Associated Fruit Drop

Dan Citrus, Huanglongbing (HLB)/Citrus Greening

Tripti Vashisth revealed new research information on what causes preharvest fruit drop and possible strategies to mitigate the problem. The Florida citrus industry, stricken by HLB, has suffered a sharp increase in preharvest fruit drop, leading to a substantial reduction in citrus production. According to Vashisth, assistant professor of horticulture at the University of Florida Institute of Food and Agricultural Sciences …

decline

Florida Citrus Industry Continues Decline

Dan Citrus, Huanglongbing (HLB)/Citrus Greening

Florida citrus production has decreased for almost two decades. According to Marisa Zansler, director of economic and market research at the Florida Department of Citrus, the two main factors for the state’s steady decline are citrus greening (huanglongbing, known as HLB) and Hurricane Irma. Zansler presented staggering statistics during the Florida Agricultural Policy Outlook Conference on Feb. 26 that showed …