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Below you'll see everything we could locate for your search of “canker”
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 …
By Tom Spreen The Florida citrus industry has experienced a difficult stretch of years since the record crop year of 2003–04, when over 240 million 90-pound boxes of oranges were produced. INDUSTRY DECLINEIn 2004, multiple hurricanes crisscrossed the Florida peninsula. They were the first hurricanes to hit the citrus-producing area of Florida since Hurricane Dora in 1964. The hurricanes themselves …
Greg Douhan with University of California Agriculture and Natural Resources (UCANR) recently wrote about phytophthora diseases in California citrus. Edited excerpts follow: There are at least four species of Phytophthora species (P. citrophthora, P. parasitica, P. syringae and P. hibernalis) associated with citrus in California. The three diseases in citrus caused by these fungal-like pathogens are phytophthora root rot, phytophthora …
Fundecitrus says it repudiates recent articles that claim productivity in Brazil’s São Paulo and Minas Gerais citrus belt will be reduced by 60% in the next five years due to citrus greening disease. Fundecitrus says Chilean and Spanish news portals published such reports on Nov. 14. According to Fundecitrus, this information is not valid, nor was it ever provided by …
By Amir Rezazadeh Citrus trees face many threats that can impact fruit development and overall tree health. Pests, including aphids, mites and other insects, can damage fruit and transmit diseases. Extreme weather events, such as hailstorms or heavy rains, can cause physical harm, leading to blemishes and reduced market value. In addition, citrus growers have faced persistent challenges because of …
By Michael Rogers Much has been discussed recently about the promise and potential of utilizing CRISPR technology to create HLB-resistant trees for Florida’s citrus growers. The primary objective in citrus gene editing is to develop new varieties that are resistant to HLB disease while remaining non-transgenic. To achieve this goal, researchers make alterations to or eliminate specific genes within the …
Fundecitrus researcher Franklin Behlau lectured about canker and HLB and participated in other ways at the recent Asian Citrus Congress in Nagpur, India. His lecture addressed the advancement of HLB (also known as greening) in the Brazilian citrus belt and the work carried out by Fundecitrus in combating HLB and canker. Behlau also moderated a technical session and participated in …
The search for solutions to HLB has gone on for nearly two decades. Growers and researchers have learned ways to improve nutrition programs to keep trees alive and productive, but nowhere near at the level of the days before the disease. One area of research that could yield a tree resistant to HLB is genetic engineering. There are no transgenic …
Many people believe genetics will be the eventual key that unlocks more permanent solutions to HLB. Whether it be traditional breeding or new technologies, one day there could be a citrus tree that is resistant or tolerant enough to make the disease a non-factor. One such key could be CRISPR technology to deliver a tree that is engineered to resist …
By Ariel Singerman Citrus greening (HLB) has significantly impacted the Florida citrus industry. The disease has caused tree health, yield and fruit quality to decrease significantly over time. In 2022–23, due to the combined impact of HLB, Hurricane Ian and a freeze in December 2022, the statewide average yield for both Valencia and non-Valencia oranges was estimated to be approximately …
In a virtual presentation, plant breeder Jude Grosser discussed recently released citrus varieties that might work well in the fresh fruit market. Grosser is a professor at the University of Florida Institute of Food and Agricultural Sciences’ (UF/IFAS) Citrus Research and Education Center. Here’s a look at some of the varieties he addressed: MANDARINSGrosser described Marathon as the “best option” …
By Ozgur Batuman Plant virus diseases are unusually difficult to manage if introduced into new production sites. Citrus-infecting viruses, particularly those spread by insect vectors, are no exception to this. Florida is regularly challenged by a barrage of invasive pests and pathogen species that could devastate the citrus industry. Viruses causing citrus leprosis and citrus yellow vein clearing diseases are …
By Frank Giles and Tacy Callies The Citrus & Specialty Crop Expo hosted two citrus educational sessions during the Aug. 16–17 event held at the Florida State Fairgrounds in Tampa. The sessions included both long-term research aimed at delivering trees resistant to HLB as well as what growers can do today to help mitigate the effects of the disease in …
Citrus researcher Nian Wang has been appointed to the Graves Eminent Scholar Chair in Biotechnology at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS). Wang is a professor of microbiology and cell science at the Citrus Research and Education Center (CREC). He was appointed to the chair because of his work to develop a tree resistant to …
Trunk injection for HLB, diplodia stem-end rot (diplodia SER) and citrus under protective screen (CUPS) were among topics addressed at the recent Citrus Packinghouse Day. The event took place at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC). TRUNK INJECTION FOR HLBTrunk injection of oxytetracycline (OTC) increases tree health, fruit quality …
The U.S. Department of Agriculture Agricultural Marketing Service (USDA AMS) funded three citrus projects in Georgia for fiscal year 2023. SATSUMA EDUCATIONThe Georgia Department of Agriculture (GDA) received $103,225 for a satsuma education project. GDA will partner with local farmers and produce distributors to increase the availability of Georgia-grown satsuma mandarins in retail locations. The project will work closely with …
By Megan Dewdney It is summer in Florida, and the early fruit are maturing. This is always a risky time for brown rot in early sweet oranges and grapefruit cultivars. The summer rains have been happening, but they have been intermittent depending on location. This means that phytophthora propagule counts may vary depending on how much rain has occurred in …
The Georgia Citrus Association recently provided information for Georgia growers interested in shipping their citrus to Florida. CHECK REGISTRATIONFlorida citrus packers should be registered with the Florida Department of Agriculture and Consumer Services (FDACS) and the U.S. Department of Agriculture (USDA) if they send fruit out of Florida. The packer should have already reached out to the Florida Citrus Health …
By Lauren Diepenbrock A recently established snail species, Bulimulus bonariensis (also known as Bulimulus sporadicus), has been growing in population throughout the Southeast for the past few years. Growers first reported concerns about this snail in 2020 when they found the pest covering microjets and interfering with irrigation in the late spring/early summer (Figure 1). At the time, it was …
Specialists from Brazil’s Fundecitrus recently participated in the Argentine Citriculture Congress in Concordia, Argentina. They were among more than 400 at the event. Participants included producers, researchers and students. Fundecitrus researcher Renato Bassanezi gave the opening lecture on epidemiology and management of greening in Brazil. He also participated in a round table discussion on the current status of advances in …
