 |  |  |  |  |  |  |  |  |
Below you'll see everything we could locate for your search of “disease”
If you grow citrus in Florida, you’ve probably heard the term CRISPR used in discussions about gene editing to find HLB resistance. CRISPR is complicated science but holds great promise in fighting both human and plant diseases. At the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), Nian Wang, a professor of microbiology and cell science, has been …
The quest for long-term solutions to HLB is well underway. Technology like CRISPR is being developed to introduce tolerance or resistance to HLB. Conventional breeding also is seeking rootstocks and varieties that can resist the disease. In the meantime, growers are reminded to utilize available tools that help trees remain productive in an HLB environment. During the August Citrus & …
A failed field test has led to a major discovery about Asian citrus psyllids (ACP). According to new research, the bacterium that causes HLB disease can interfere with ACP’s sense of smell, rendering some kinds of insect traps useless. The work is currently available as a preprint. HLB, also known as citrus greening, is caused by the Candidatus Liberibacter asiaticus (CLas) bacterium. …
China production forecasts are increased for both mandarin/tangerine and grapefruit/pomelo crops in 2023–24 compared to the prior year. The forecasts were issued by the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS). MANDARINS/TANGERINES China’s mandarin/tangerine production is forecast at 26.9 million metric tons (MMT) in 2023–24, up from 26.5 MMT the previous year. The increase is because of a …
Mexico’s Ministry of Agriculture and Rural Development recently pointed out ways the country has successfully dealt with huanglongbing (HLB), the most devastating disease of citrus worldwide. The ministry reported that the disease has triggered socioeconomic problems in other citrus-producing countries and regions in the Americas, Africa and Asia. “With appropriate agronomic-phytosanitary management, the life of affected trees can be prolonged, …
By Randall P. Niedz, Guilherme Locatelli, Nick Larson, Lorenzo Rossi, Ellen Cochrane and Michelle Heck Scientists at the U.S. Department of Agriculture-Agricultural Research Service (USDA-ARS) developed an idea to bypass lab assays and test molecules directly in the field for their ability to solve HLB. As part of a USDA National Institute of Food and Agriculture (NIFA) grant (number 2020-70029-33176), …
By Davie Kadyampakeni Huanglongbing (HLB) is a citrus disease that affects the growth of the fibrous roots of citrus trees. This means that HLB-affected trees may have reduced root volume, which impacts water uptake. A greenhouse study was conducted from October 2019 to July 2021 at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and …
A U.S. Department of Agriculture (USDA) scientist and his team are hopeful that some so-called “long-shot” varieties will pay off in the effort to find HLB-tolerant grapefruit. Matthew Mattia of the USDA Agricultural Research Services (ARS) U.S. Horticultural Research Laboratory in Fort Pierce, Florida, found the varieties at the A.H. Whitmore Foundation Farm in Groveland, Florida. The varieties are Florida …
John Chater has been on the job now for two years, working with growers to evaluate variety performance in field trials. In the latest All In For Citrus podcast episode, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor discusses his work, including grower collaboration to study new varieties in real-world environments. Chater also talks about …
Positive identifications of citrus yellow vein clearing virus (CYVCV) have been found in the Hacienda Heights area of Los Angeles County. The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service confirmed the identifications during the California Department of Food and Agriculture’s (CDFA) routine multi-pest survey. This is the second area in California where CYVCV has been detected. The …
University of California, Riverside (UCR) has received three federal grants totaling more than $11 million for research focused on instilling HLB-tolerance in citrus trees. The grants are from the U.S. Department of Agriculture’s (USDA) National Institute of Food and Agriculture (NIFA). The funding was enabled by the 2018 Agricultural Improvement Act, which authorized the Emergency Citrus Disease Research and Development …
By Jawwad A. Qureshi, Lauren Diepenbrock and Davie Kadyampakeni Protecting citrus trees from the Asian citrus psyllid (ACP) is critical to reducing the spread and severity of huanglongbing (HLB) disease. The frequent availability of viable shoots in young trees is attractive to psyllid colonization, feeding and oviposition events. UV-metalized reflective mulches reflect ultraviolet light, which is disturbing for some insects …
Production of oranges in Costa Rica in 2023–24 is expected to decline 15% from the prior year to 250,000 metric tons (MT), the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) reported. The decline is a result of unfavorable weather conditions in Northern Costa Rica associated with an El Niño weather system. Two companies, TicoFrut and Del Oro, control …
Mexico’s Ministry of Agriculture and Rural Development recently reported that Mexico produced more than 8 million tons of lemons, oranges and grapefruit in 2022. It stated that Mexico was in second, third and fourth place in world production of lemons, grapefruit and oranges, respectively. The ministry also pointed out many of the health benefits of consuming citrus. LEMONSFigures from the …
The California Department of Pesticide Regulation (CDPR) has adopted new regulations to protect pollinators from the hazards associated with exposure to neonicotinoid pesticides containing the active ingredients clothianidin, dinotefuran, imidacloprid and thiamethoxam. The regulations affect the application of these pesticides on certain food and feed crops, including citrus. Product labels will not be updated with these requirements. CDPR suggests that …
The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (USDA APHIS) is using $103.5 million in emergency funding to respond to the threats associated with growing outbreaks of exotic fruit flies. U.S. Secretary of Agriculture Tom Vilsack approved the transfer of the funds from the Commodity Credit Corporation to APHIS to directly support emergency response efforts domestically and …
The January issue of Citrus Industry magazine rings in the new year with positive news! Find out how one Florida grower is producing up to 500 boxes per acre. Matt Machata tells how he rehabilitated his family’s groves in Lake Wales. He shares the details of his dry fertilizer and foliar application schedules. Attention to nutrition, irrigation and soil health …
Florida is not a major producer of finger limes — yet. Australia has the most finger lime acreage in the world, and most U.S. finger limes are grown in California and Hawaii. But Florida’s acreage is expanding, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) horticulturist Manjul Dutt reported during a Dec. 20 presentation at the Citrus Research …
By Brenda Eubanks Burnette December is always a favorite month for me. It’s a time to reflect on the trials and tribulations from the past year and a time to be thankful for the blessings in our lives that have brought us through difficulties. December brings anticipation for the upcoming year and what lies ahead. For citrus growers, December also …
The U.S. Department of Agriculture Animal and Plant Health Inspection Service (USDA APHIS) announced it has designated Alabama as a commercial citrus-producing area. This action provides Alabama with protections that are afforded under the citrus canker regulations applying to commercial citrus-producing states. USDA APHIS regulates the interstate movement of certain plants, plant parts and other articles from areas of the …
