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Below you'll see everything we could locate for your search of “fruit drop”
U.S. growers produced 884,000 tons of lemons in 2020-21, the smallest lemon crop since 2016-17, according to the U.S. Department of Agriculture’s Economic Research Service. Eighty percent of these lemons (710,000 tons) went to the fresh market, a 6% decrease in quantity from 2019-20. Although most U.S. lemons are grown in California, Arizona growers typically supply about 5% of the …
By Yu Wang, Xixuan Tang, Charles Sims, Zhifeng Gao and Renee Goodrich Citrus fruit produced from HLB-affected trees are green and taste bitter. They are usually not suitable for either the fresh market or juice market because they have a lower Brix/acid ratio. Mitigation strategies can cause less fruit drop and help citrus trees survive. However, they triple production costs, …
The work that University of Florida Institute of Food and Agricultural Sciences faculty members have done on HLB will be featured Nov. 16 at the Citrus Research and Education Center (CREC) in Lake Alfred. The center will host growers and others that day at an open house and field day. The morning program will kick off with a panel discussion …
Two short videos about HLB-related research were available at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) booth at Citrus Expo in August. The videos are available online for viewing. UF/IFAS researcher Tripti Vashisth narrated the video, HLB-Associated Preharvest Fruit Drop. She said up to 40% of fruit can drop from mildly HLB-symptomatic trees shortly before harvest, …
By Tripti Vashisth Gibberellic acid (GA) is a naturally occurring plant hormone. GA has been used in citrus production for years to improve fruit set and size, reduce preharvest drop and delay harvest. Recent findings show that monthly foliar application of GA from September to January can improve productivity of HLB-affected Valencia trees. On average, a 30% increase in yield …
By Gary K. England and Manjul Dutt The Parson Brown is an early-season sweet orange that was identified in 1875 by J.L. Carney and named the Carney Parson Brown (CPB). In a 1923 article titled ‘History of the Parson Brown Orange,’ E.L. Carney described how his brother Capt. J.L. Carney sought a sweet orange of acceptable quality for budding onto …
Citrus growers need both quantity and quality for a successful crop. As HLB continues to negatively impact both these factors, growers are seeking strategies to safeguard their fruit. The October issue of Citrus Industry magazine presents ideas for enhancing fruit quality and quantity. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers Tripti Vashisth and Christopher Vincent …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) multi-county citrus Extension agent Ajia Paolillo discussed brown rot management in the September Extension newsletter, Citrus from the Ridge to the Valley. Her article follows. As we move into September, it is essential to remember that brown rot can impact yield, especially early varieties. Brown rot is caused by either …
By Davie Kadyampakeni, Evan Johnson, Kelly Morgan and Ali Atta Citrus production in Florida has been decreasing over the last 15 years due to several factors, with huanglongbing (HLB) a major driver. This disease has severe effects on citrus growth and production, including stunted vegetative growth, misshapen small fruits and poor color development, root mortality, stunted branches, excessive fruit drop, …
Many Florida citrus growers were among the approximately 300 people who registered for a Sept. 21 virtual seminar telling how gibberellic acid (GA) can improve Valencia orange yields. Valencias, at 30.1 million boxes, made up slightly more than half of Florida’s total citrus crop in the 2020-21 season. Presenter Tripti Vashisth started her presentation by saying that GA, already available …
Fundecitrus and its cooperators announced on Sept. 10 that Brazil’s 2021-22 orange crop forecast has decreased to 267.87 million boxes. This is a decrease of 8.9% from May’s initial forecast of 294.17 million boxes. While Brazil was initially expecting a larger orange crop this season, the updated forecast is less than the 268.63 million boxes Brazil produced in 2020-2021. The …
By Evan G. Johnson It is time to start thinking about protecting the fall root flush that will start soon and continue through November/December. This is the largest root flush of the year that stores carbohydrate reserves for next spring. Coming out of the rainy season, phytophthora has had the chance to build up plenty of inoculum, especially in groves …
Jonathan Oliver, University of Georgia assistant professor and small fruits pathologist, is concerned about the potential impact of citrus greening disease in Georgia. That’s why he is encouraging Georgia growers to quickly dispose of infected trees if any are found. “Once greening becomes really widespread and established in a lot of our trees, it’s really hard to stop it,” Oliver …
How citrus canker arrived in Alabama is still unknown. What is certain is that it’s an issue the Alabama Department of Agriculture is determined to contain before it becomes a major problem, said Kassie Conner, director of the Auburn University Plant Diagnostic Lab, during a recent webinar. “The first trees that were found infected were in a landscape, and the …
If you missed Citrus Expo Aug. 18-19 and the great production information available at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) booth, you can now access it online. Posters and videos that were available at the booth are now on the UF/IFAS Citrus Research website. Click on “Presentations,” then “Citrus Expo Presentations,” then “2021 Citrus Expo.” …
By Pete Spyke and Bill Castle Navel oranges are fairly tolerant of HLB, are popular and easy to sell, and offer a stable source of income that is only marginally related to worldwide supply and demand. Nevertheless, the Florida navel orange industry has experienced some tough times recently. Growers are questioning whether it is possible to grow navel oranges profitably …
Private consultant Elizabeth Steger on Aug. 16 forecast Florida will produce 52 million boxes of oranges in the 2021-22 season — 1.5% less than the 52.8 million boxes produced in 2020-21. Steger projected 20.8 million boxes of early-midseason oranges; that’s less than the 22.7 million boxes produced last season. Her Valencia projection is 31.2 million boxes; that’s more than the …
In the face of production declines, pest issues and other challenges, multi-county Florida citrus grower David Wheeler of Wheeler Farms found something positive to report. “One bright spot is the health of our young trees,” he said. “They look outstanding and have been on a good program with a rotation of insecticides.” Wheeler Farms’ more mature citrus trees aren’t doing …
Florida citrus production can be significantly impacted during the summertime heat. High temperatures with little to no rainfall can affect trees’ vegetative growth, fruit set and fruit quality, says Amir Rezazadeh, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) multi-county fruit and field crops agent. Heat is a factor that can cause citrus trees to become significantly dehydrated. …
Manjul Dutt recently discussed his research on the Parson Brown (PB) sweet orange, which shows some characteristics that could make it more attractive than Hamlin, Florida’s leading early-season orange. Dutt is a University of Florida Institute of Food and Agricultural Sciences horticultural sciences researcher at the Citrus Research and Education Center in Lake Alfred. Dutt’s research, funded by the Citrus …
