Two weeks into his job as chief operations officer (COO) of the Citrus Research and Development Foundation (CRDF), Rick Dantzler summarizes what he has heard from growers and his thoughts on helping the industry. Dantzler says he has talked to growers, CRDF board members and industry representatives “to try to get a sense of what they want CRDF to do. …
Sneak Peek: September 2018 Citrus Industry Magazine
Some fruit drop in citrus is a naturally occurring process, but other types of drop can and should be avoided. In the September issue of Citrus Industry magazine, University of Florida researchers discuss HLB-associated pre-harvest fruit drop and glyphosate-related fruit drop. Not only does HLB increase fruit drop, it also negatively impacts fruit flavor. Another research article in the September …
Citrus Expo Presentations Now Available
The 27th annual Citrus Expo saw great success as growers piled into the Lee Civic Center on Aug. 15–16 in North Fort Myers, Florida. Growers experienced the biggest trade show in Citrus Expo history, as well as extended citrus seminar sessions. The educational program, titled “Planting Tomorrow’s Profits,” featured presentations on the latest research from the University of Florida Institute …
Florida Citrus Acreage Declines Again
Florida’s citrus acreage continued a long descent in 2018, decreasing 2 percent to 447,012 acres. The total number of acres is the least since the U.S. Department of Agriculture’s National Agricultural Statistics Service began keeping count in 1966. The 2018 count was released on Aug. 28. There was a gross loss of 20,114 acres in 2018, partially offset by new …
CUPS Offers Grapefruit Hope
A 4-year-old citrus-under-protective-screen (CUPS) trial offers hope for fresh grapefruit growers who struggle to grow fruit in the face of HLB, Arnold Schumann reports. Schumann says last season’s Ray Ruby grapefruit crop enclosed in CUPS at the Citrus Research and Education Center in Lake Alfred had 100 percent packout, even after Hurricane Irma inflicted some damage to the CUPS structure …
Growers Discuss Crop Conditions, Bactericides and More
Highlands County Extension Director and Citrus Extension Agent Laurie Hurner summarizes discussions at a grower forum she hosted in Sebring on Aug. 23. Crop conditions and bactericides for HLB were among topics discussed. “We heard that the crop is looking good,” Hurner says. “I think people were optimistic, but they were also hesitant in their optimism.” She points out that …
Consider Vigorous Resets at Higher Densities
By Aaron Himrod Although there is a current lack of true resistance to HLB, making appropriate variety choices does have a significant impact on grove performance and profitability. Compromises among the various factors will have to be made. Take note of the most limiting factors in your grove and make your selection with these in mind. HLB exacerbates stresses that …
What to Ask When Deciding What to Plant
By Nate Jameson The decision-making process for choosing a scion/rootstock combination involves multiple factors. The process starts by answering the following questions: Question 1: New planting or resetting? If the block is being reset, is still profitable and will stay in production for several years, then I suggest the grower stay with the existing combination currently planted. If the block …
Rootstock/Scion Combos: What Works and What Doesn’t
By Ernie Neff For Phil Rucks and Tom Powers at Phillip Rucks Citrus Nursery in Frostproof, Florida, selecting rootstock and scion combinations starts by acknowledging that some varieties just don’t do well with HLB. “We don’t recommend some varieties regardless of rootstock,” Rucks says. Powers says varieties that are especially difficult to grow with HLB are Hamlin, midsweet and pineapple …
Experts Suggest Varieties for Irma-Damaged Citrus Replanting
As growers decide how to use U.S. Department of Agriculture (USDA) funding to recover from damages caused by Hurricane Irma — and as they cope with the ongoing impact of citrus greening — University of Florida researchers are suggesting varieties for them to replant. Producers can grow varieties that show tolerance to greening — also known as huanglongbing, or HLB. …
Control of Citrus Flush Timing Could Improve Psyllid Control
They say timing is everything in life, and that’s certainly true of the Asian citrus psyllid, which has devastated Florida agriculture for the past decade by transmitting citrus greening disease, also known as huanglongbing or HLB. To reproduce, this small, flying insect must lay eggs on citrus “flush” – the tender new leaves and shoots that citrus trees produce several …
New Florida Citrus Production Guide Debuts at Citrus Expo
Beginning this week, Florida citrus growers will have an updated resource to help them keep groves productive despite the ever-present threat of huanglongbing, the bacterial malady also known as HLB or citrus greening disease. Experts with the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have just completed a 180-page technical handbook, “Florida Citrus Production Guide 2018-2019.” It …
New Planting Options for Citrus Growers
By Fred Gmitter, Ed Stover, Randy Driggers, Greg McCollum and Jude Grosser The U.S. Department of Agriculture (USDA) Agricultural Research Service citrus breeding program has a long history of releasing successful scion and rootstock cultivars. There had been a 15-year lapse in creating new hybrids, and the recently released cultivars largely reflect breeding efforts that preceded the onslaught of HLB …
‘No Positive Response’ from Bactericides
Citrus Research and Development Foundation (CRDF) President Larry Black discusses grower trial results indicating bactericides used for HLB infection did not increase citrus yields. The results were presented by CRDF staff at a recent meeting of the organization. Black says numerous growers who were using bactericides for HLB volunteered to leave sections of their groves untreated. “CRDF staff went out …
Rootstock Choice May Be Key in Tree Productivity
Florida citrus growers recognize the Sugar Belle® mandarin hybrid for its tolerance of citrus greening disease, and new findings from the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) suggest that rootstock selection may play a role in keeping Sugar Belle® trees productive even if they become infected with the bacterial malady. “We now have proof of concept …
UF/IFAS Researchers Search for Solutions to Citrus Diseases with Citrus Initiative Funds
From nutritional supplements to managing irrigation to grower outreach and education, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers are finding additional ways to support Florida citrus growers in their fight against citrus greening disease. Twelve projects were funded by the state legislature-funded Citrus Initiative program in 2017-2018 that looked at possible short- and long-term solutions that …
Lemons in Florida: Something New Under the Sun?
By Fred Gmitter, Bill Castle and Jude Grosser King Solomon once pointed out that “there is nothing new under the sun,” meaning that what has happened before will happen again. Although the idea of growing lemons in Florida is viewed by some these days as a new thing, Florida actually has a fairly long history of lemon production. FLORIDA LEMON …
Brazil’s Citrus Forecast for 2018–19
By Marcos Fava Neves The season’s first orange crop forecast is one of the most important numbers of the year for Brazil’s orange juice business. The citrus forecast for 2018–19 was published on May 9 by Fundecitrus, in cooperation with Markestrat, University of São Paulo and São Paulo State University. SIZE AND VARIETIES Brazil expects 288.29 million boxes of oranges …
The Sweet Spot
Moderate spacing and medium tree size could be the quickest way Florida growers can return to producing 100 million boxes of oranges per year. By Pete Spyke, Bill Castle and Ed Stover The Florida Department of Citrus (FDOC) recently released the results of a study originally titled “Restoring Florida’s Commercial Orange Tree Inventory: Economic Impacts of APS vs. Traditional Plantings.” …
Black Discusses New CRDF Chief Operations Officer
Citrus Research and Development Foundation (CRDF) President Larry Black discusses the organization’s recent selection of Winter Haven attorney and former state legislator Rick Dantzler as chief operations officer. “Rick wasn’t part of the original candidate pool, but his name emerged in recent weeks as a strong candidate, a good leader,” Black says. “He had a great track record as the …