CLM and Canker: Dangerous Summer Duo

Ernie Neff Diseases, Pests

Chris Oswalt details the connection between citrus leafminer (CLM) and citrus canker in the May/June Central Florida citrus Extension newsletter, Citrus from the Ridge to the Valley. He also offers some management tips. “I don’t think we can overstate the effect of leafminer damage on citrus foliage and the increased development of citrus canker lesions on damaged leaves,” the multi-county …

Improving Productivity in Australia

Ernie Neff Production, Research

A new research and development program launched by Hort Innovation aims to arm growers in Australia with the tools they need to produce more fruit, including citrus, and nuts per hectare. Hort Innovation is a grower-owned, not-for-profit research and development corporation for the nation’s horticulture industry. ABOUT THE PROGRAMThe 5-year $28 million National Tree Crop Intensification in Horticulture Program will …

FFVA Creates Stuart Scholarship

Ernie Neff Scholarship

The Florida Fruit & Vegetable Association (FFVA) has created the Mike and Karen Stuart Scholarship. The scholarship encourages and supports college students who intend to pursue a career in the specialty crop industry. The specialty crop industry is an area of agriculture focused on vegetables, citrus, tropical fruit, berries, sod, sugar cane, tree crops and more. Applicants may be interested …

irrigation

CRAFT Foundation: Two-Year Program Update

Ashley Robinson Research

The Citrus Research and Field Trial (CRAFT) Foundation Inc. is in its second year of operation. CRAFT Foundation Executive Director Kristen Carlson gave a program update during the recent Florida Citrus Show. CRAFT was designed to work as a cooperative effort between growers and researchers in order to provide examples of economically feasible production management practices and programs for Florida …

How OJ Sales Boomed in the Pandemic

Ernie Neff Orange Juice

The boom in OJ (orange juice) sales during the COVID-19 pandemic was highlighted during Marisa Zansler’s report to the Florida Citrus Commission in May. Zansler is the Florida Department of Citrus’ (FDOC) director of economic and market research.   Prior to the pandemic, orange juice sales had decreased annually by an average of 5.5.% each year, Zansler reported. She noted …

BMPs Give Growers Less Peace of Mind

Ernie Neff BMPs

Editor’s note: A correction has been made to this article. It previously stated that “UF/IFAS’ current highest recommendation for phosphorus on citrus is 16 pounds per 100 pounds of fruit per acre annually if soil tests and tissue samples indicate insufficient phosphorus content.” The information has been corrected to 16 pounds per 100 boxes. For years, participation in Florida’s Best …

Gulf Citrus Growers Hold Annual Meeting

Ashley Robinson Gulf

The Gulf Citrus Growers Association (GCGA) held its 35th annual meeting at the Verandah Country Club in Fort Myers on June 9. At the meeting, the GCGA board elected officers to serve the organization for the 2021-2022 season. Ron Mahan of Tamiami Citrus, LLC was elected president. Other officers elected to lead the regional citrus association are Vice President Danny …

Unlocking the Citrus Microbiome

Ernie Neff Research

Yunzheng Zhang, Nian Wang and colleagues recently published an article, The Citrus Microbiome: From Structure and Function to Microbiome Engineering and Beyond, in the Phytobiomes Journal. It outlines the structure and potential functions of the plant microbiome​. It explains how this knowledge can lead to new engineering feats and a greater understanding of the plant microbiome. Insights into the microbiome …

Inspect Your Irrigation System Regularly

Tacy Callies Irrigation, Tip of the Week

By Ajia Paolillo Throughout the year, it is a good practice to check your irrigation system for leaks, wear, corrosion and other physical damage that can limit the efficiency of the system. Proper irrigation provides the tree with the water it needs, especially during periods of drought and during the important stages of flowering, fruit set and enlargement, and leaf …

citrus

Grapefruit Challenges and Opportunities

Ernie Neff Grapefruit

A recent report summarizes the U.S. grapefruit market’s challenges, including citrus greening disease and hurricanes, and opportunities. Lijun (Angelia) Chen and Lisa House with the University of Florida Institute of Food and Agricultural Sciences authored the report, titled “An Overview of the Grapefruit Market in the U.S.” “The U.S. grapefruit industry has been facing fierce challenges in both production and …

Combating California Red Scale

Tacy Callies California Corner, Pests

California red scale (CRS) is one of the key pests for growers in the San Joaquin Valley, home to 75% of the state’s citrus production. CRS is a sap-sucking insect that attacks all parts of citrus trees. It causes dieback of branches, yield loss and downgrading of fruit. According to Sandipa Gautam, University of California assistant research entomologist at the …

Fruit Drop: When to Harvest

Tacy Callies Fruit Drop

By Ariel Singerman and Stephen H. Futch In the 2020–21 citrus season, fruit drop has severely impacted orange yield in Florida. According to a recent U.S. Department of Agriculture (USDA) citrus crop forecast, the estimate of fruit drop for early/mid-season and Valencia oranges was 43% and 34%, respectively. Moreover, according to some growers, the level of fruit drop has been …

Brutal Honesty on HLB

Ernie Neff CRDF, HLB Management

Rick Dantzler did not follow normal protocol in providing an update about his organization’s efforts. Dantzler, chief operating officer of the Citrus Research and Development Foundation (CRDF), didn’t talk glowingly about CRDF’s accomplishments. Rather, he started off by telling how far the Florida citrus industry has declined since CRDF was formed in 2009 primarily to find a solution to HLB. …

HLB Practices: Growers’ Attitude Studied

Ernie Neff California Corner, HLB Management

Although HLB has not yet been detected in a commercial citrus grove in California, growers have been provided with voluntary best management practices to limit the spread of HLB and the psyllids that transmit the disease. A study conducted by researchers at University of California (UC) Davis and UC Riverside, in collaboration with the Citrus Research Board, examined citrus growers’ …

Renewed Effort to Stop Chinese Citrus Imports

Ernie Neff Trade

U.S. Senators Marco Rubio and Rick Scott of Florida recently urged U.S. Secretary of Agriculture Tom Vilsack to re-implement a prohibition on the importation of five varieties of citrus from China. The U.S. Department of Agriculture (USDA) in April 2020 decided to allow the importation of the Chinese varieties. “The USDA’s decision continues to risk an increase in unfair trade competition …

Mexico Could Increase Organic Citrus Production

Tacy Callies Mexico, Organic

By Francisco Seva Rivadulla Citrus growers in Mexico are beginning to explore types of production that are more respectful of the environment and associated with a healthier lifestyle, including organic production. “The organic citrus sector is still small, as its market share does not reach 5%, but gradually foreign demand is causing organic citrus to have an increasing presence in …

florida orange

More Changes to Florida Citrus Crop Forecast

Daniel Cooper Crop Forecast

On June 10, the U.S. Department of Agriculture’s (USDA) National Agricultural Statistics Service reported the Florida orange forecast at 52.7 million boxes. Total orange production is up 2% from the May forecast but down 22% from last season’s final utilization. The forecast for Florida non-Valencia orange production is 22.7 million boxes, unchanged from the previous forecast. The Navel forecast, included …

The Secret Ingredient of Developing New Citrus Rootstocks

Tacy Callies Citrus, Rootstocks

By Bill Castle Creation, evaluation, release and commercial acceptance are dynamic, interactive activities that together constitute new rootstock development. Underpinning each of them is a commonly overlooked and rarely mentioned activity, professional judgment. Yet, it is something everyone has and recognizes as getting better with time and experience. It is a skill developed and refined over time from knowledge of …

How the FDOC Will Use Extra Funding

Ernie Neff Florida Department of Citrus

With Gov. Ron DeSantis’ recent approval, the Florida Department of Citrus (FDOC) has $12 million in state funding for the 2021-22 season.  With the additional funding, the FDOC plans to expand its programs, reaching more consumers in order to drive sales of Florida orange juice (OJ). The FDOC will also increase marketing programs for fresh grapefruit, oranges and tangerines, similar …

court

Court Rejects EPA’s Aldicarb Approval

Ernie Neff Legal, Pesticides

The federal Court of Appeals in the District of Columbia on June 7 rejected the Environmental Protection Agency’s (EPA) approval of the pesticide aldicarb on Florida oranges and grapefruit, the Center for Biological Diversity reported. The ruling came in response to a lawsuit filed in March by farmworker and conservation groups after the EPA approved the use of up to …