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Below you'll see everything we could locate for your search of “UF/IFAS”
Ask any Florida citrus grower what the top priority is, and you’ll likely get the same answer: Keeping HLB-affected trees productive and profitable. The April issue of Citrus Industry magazine provides research on production practices aimed to meet this goal. Adjusting the amount of sunlight plants receive has proven to increase citrus tree health and yield. University of Florida Institute …
By Megan Dewdney Citrus black spot is one of the newer diseases to worry Florida citrus growers. The fungal disease was first detected in Southwest Florida in 2010. The vast majority of finds have been in the southwestern citrus-producing counties of Collier, Hardee, Lee, Charlotte and Glades, but the disease has slowly moved northward. Black spot is still considered a …
By Sylvia Willis, Amy Vu and Jamie Ellis When people think of Florida, the first thing that comes to mind is Fresh From Florida oranges. Florida accounts for 44 percent of total U.S. citrus production. Citrus, like many other fruits, vegetables and specialty crops, requires certain inputs to grow and produce fruit. But how are pollinators and the production of …
March’s All In For Citrus podcast brings news of in-person events, details on controlling the vector of HLB disease, as well as potential changes to nutrient and water management recommendations. Citrus Research and Education Center Director Michael Rogers begins the episode discussing several upcoming events for growers. On April 6, the Florida Citrus Growers’ Institute will return as a virtual …
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 …
Many citrus growers in Florida’s panhandle were experiencing high populations of scales early this year, particularly Florida red scale and false Florida red scale, Jefferson County Extension agent Danielle Sprague announced in a recent issue of the Cold Hardy Citrus Connection newsletter. The newsletter is a University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Extension publication. Sprague pointed …
Lebbeck mealybug (Nipaecoccus viridis) was first identified in Florida citrus in 2019 in Highlands County. It has now been documented in commercial citrus groves in 11 counties and in dooryard citrus plantings in two counties. While lebbeck mealybug can feed on most of the above-ground parts of a citrus tree, it is most damaging in the canopy, where it feeds …
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. …
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 …
A new University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) document, Management of Citrus Tree Canopies for Fresh-Fruit Production, addresses the principles of citrus pruning and canopy management. It tells how applying those principles can improve the quality and quantity of fresh fruit production in Florida. Here is an excerpt from the document: “Canopy management has three goals …
By Lauren Diepenbrock While scale and mealybug pests commonly found in citrus have historically been controlled by predators and parasites, management advice for this group of insects is often requested. There are likely several underlying factors to these insects becoming more frequently encountered. This includes changes in insecticide management practices, changes in nutritional management, and increased scouting due to the …
By Emilie Demard and Jawwad Qureshi Managing the Asian citrus psyllid (ACP), a vector of huanglongbing (HLB), is critical for reducing disease incidence and improving tree health. Growing citrus under screened structures, referred to as citrus under protective screen (CUPS), protects trees from ACP and HLB. CUPS provides an opportunity to produce premium-quality fresh fruit by preventing psyllids and HLB …
The Australian finger lime, a citrus relative, could be a new specialty crop for Florida citrus growers. Traditionally, finger limes have remained rare in the United States, grown few and far between. However, the fruit’s unique tolerance to HLB is becoming increasingly attractive to Florida growers. Manjul Dutt, research assistant scientist at the University of Florida Institute of Food and …
The Citrus Research and Development Foundation (CRDF) is establishing a new project to evaluate the most promising citrus rootstocks in grower field trials. The rootstock trials are projected to be planted in the spring or summer of 2022. The goal will be to identify plant material with the traits needed for growers to realize the highest possible pound solids per …
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 …
By Jawwad Qureshi Managing the Asian citrus psyllid (ACP) is critical because of its role in spreading huanglongbing (HLB). Biological control is one method for ACP control. It is essential for developing integrated and sustainable pest management strategies. Biological control has always been a vital component of citrus pest management in Florida; understanding its contribution to the mortality of ACP …
Developing and maintaining a healthy root system is crucial for establishment and long-term productivity of citrus trees. The presence of HLB can greatly complicate citrus root-health management. The infection causes severe damage to fibrous roots that amplify the detrimental effects caused by other root pests and pathogens, such as phytophthora root rot. Due to HLB’s widespread presence throughout Florida, root-health …
As growers strive for sustainability in the HLB era, biological controls are playing an increasingly important role in citrus production. The March issue of Citrus Industry magazine features some of the latest biological control research. An article by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) entomologist Jawwad Qureshi looks at three types of biological control agents used …
Megan Dewdney Since tangerines and grapefruit they are eaten fresh, a blemish-free peel is highly desired. Two diseases that frequently mar the peels of tangerines, and occasionally grapefruit, are Alternaria brown spot (ABS) and citrus scab. Both diseases cause symptoms on leaves and fruit. ALTERNARIA BROWN SPOTThe early foliar symptoms of ABS are small yellow flecks that quickly become larger …
An article in the January Cold Hardy Citrus Connection newsletter offered basic nutrition management information for North Florida growers. It was written by Lisa Strange with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Taylor County Extension and Clay Olson, UF/IFAS Extension faculty, emeritus. A grower’s first nutrient management consideration is to have a soil test, the …
