 |  |  |  |  |  |  |  |  |
Below you'll see everything we could locate for your search of “hlb”
By Marisa L. Zansler Over the last 20 years, the Florida citrus industry has faced many challenges, from destructive diseases, hurricanes, production cost increases, and, now in 2022, the devastation of a winter freeze. As a result, Florida citrus production has declined considerably. During the 2021–22 season, there is a 26% decline in volume movement compared to the prior season. …
Rootstock selection and fertilization are important for those considering growing finger limes in Florida. University of Florida Institute of Food and Agricultural Sciences horticulturist Tripti Vashisth addressed both of those topics in a recent virtual Finger Lime Symposium. Vashisth concluded that Volkamer lemon, UFR-5 and US-802 rootstocks appear promising for finger limes. She noted that a vigorous rootstock influences tree …
By Ajia Paolillo Florida citrus growers are undoubtedly under pressure while they work daily to maintain tree health and produce quality fruit that is profitable. Growers are constantly switching gears to budget increasing production costs, address labor issues and, of course, fight HLB and other problems in the grove. Growers are fighting HLB from many different directions, including enhanced nutrition, …
By Lukas M. Hallman, John M. Santiago and Lorenzo Rossi At first glance, one may not see how oak trees relate to citrus production. But in the early 2010s, growers and scientists reported seeing little to no HLB symptoms on citrus growing underneath the dripline of oak trees compared to citrus trees nearby but not directly under oak trees. These …
Growers know the negative impacts of any kind stress on trees infected by HLB. That raised a question: Can injury from herbicides make fruit drop worse? Ramdas Kanissery, an assistant professor of weed science with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), conducted a research project to help answer that question. Kanissery discusses the research in …
By Kim D. Bowman The breeding of new citrus rootstocks is not an endeavor for the impatient. Two of the most popular rootstocks in Florida, US-942 and US-812, each were included in field evaluation for more than 20 years before the U.S. Department of Agriculture (USDA) released them for commercial use. In these cases, the time invested in thorough testing …
Citrus growers Travis Murphy and Tom Thayer developed a formulation based on oak leaf extract that was observed to rejuvenate trees back to economic productivity. But the rejuvenation effects observed in the growers’ trials were not observed in field trials using a modified version of the formulation. U.S. Department of Agriculture (USDA) research geneticist Randall Niedz reported that result in …
Two recently released University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) varieties of finger limes were introduced at a virtual Finger Lime Symposium held in March. Manjul Dutt of the UF/IFAS Citrus Research and Education Center hosted the symposium; he also introduced the new varieties. Lourdes Pérez Cordero, UF/IFAS Extension agent in Highlands County, reported on the new …
As the voting period for the Florida Citrus Research Order winds down, it is important that growers have a clear understanding what the vote is for and the role the Citrus Research and Development Foundation (CRDF) plays in the process. Rick Dantzler, chief operating officer of CRDF, says this clarification is important to be sure growers have the correct information, …
In the quest to keep HLB-infected citrus trees productive, many growers are turning to techniques to improve soil health. That’s the focus of the June issue of Citrus Industry magazine. The hope is that better soil health will lead to better tree health. Methods under study include compost, cover crops and oak mulch. Citrus grower and consultant Brad Turner makes …
By Larry Duncan Citrus trees in Florida soils infested with diaprepes root weevil (Diaprepes abbreviatus) or sting nematode (Belonolaimus longicaudatus) frequently contend with devastating damage to their root systems. This is made even worse by root loss due to huanglongbing (HLB) disease. Where soil conditions are conducive to the insect or nematode, it is very difficult to prevent major economic …
The Citrus Research and Development Foundation (CRDF) Research Management Committee and board of directors recently approved projects for funding. The first CRDF research project has approval for funding of a final year of research by the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) to study the lebbeck mealybug and its management. “The Research Management Committee debated this …
By Anirban Guha and Christopher Vincent A quick body temperature test is common these days before entering many workplaces, hospitals and clinics due to the ongoing COVID-19 pandemic. The purpose is to screen people for fevers, usually with a non-contact infrared thermometer. Measurement of plant body temperatures also has become common for many field crops, not to screen for infectious …
The California Department of Food and Agriculture (CDFA) recently urged all citrus industry members to be extra vigilant in their Asian citrus psyllid (ACP) mitigation steps and adherence to regulatory practices. The request is in response to ACP detections in the Central Valley over the last few weeks. ACP is the vector of HLB disease. Multiple ACP were detected on …
By Brandon White This time of year is the end of the peak nutrient demand for citrus trees. Regardless of the types of fertilizer or inputs applied in the groves, trees have been taking up nutrients while growing in full tilt during the spring season. One of the greatest factors determining how well trees take up nutrients is soil pH. …
Hot and dry conditions are being seen in citrus groves across the Southeast. Growers are reminded to keep their trees — young and old — supplied with an ample amount of water. Citrus grower Kim Jones, who owns a citrus packing facility in Monticello, Florida, and is part-owner of a similar facility in Tifton, Georgia, discusses the importance of keeping …
By Amit Levy Citrus tristeza virus (CTV) infects the citrus phloem. CTV infects almost all citrus varieties, but it causes different disease symptoms depending on the virus isolate, the citrus variety and scion-rootstock combination. Florida has three dominant strains of CTV: T36, a decline-causing strain T30, which normally does not cause severe disease VT, a stem-pitting causing strain CTV is …
While sending citrus tissue samples to the lab for analysis remains important, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) has developed a smartphone application (app) that can supplement lab analysis to identify leaf symptoms of key nutrient deficiencies and certain pests and diseases. Arnold Schumann, a professor of soil and water science with UF/IFAS, demonstrated how …
An event in Lake Placid, Florida, on the potential of bamboo as an alternative commercial crop drew a large turnout of growers. Citrus growers, in particular, are interested in crops that could go on marginal grove land until a more viable solution to HLB comes along. Bamboo might fill that need, according to Phillip Rucks, owner of Phillip Rucks Citrus …
Brazil’s Fundecitrus has launched the Insecticide Rotation Guide for Psyllid Control. Its aim is to help producers control the insect vector of citrus greening, highlighting the importance of proper rotation of products to avoid the selection of resistant psyllids. The resistance of insects and mites to pesticides can compromise the effectiveness of products and, consequently, the control of the pest …
