CRDF Off to a Busy Start in 2024

Tacy CalliesCRDF, HLB Management, Pest Management

The Citrus Research and Development Foundation (CRDF) kicked off the new year with a full agenda for its monthly board meeting. New members were welcomed to the board. Growers Matt Machata, Sarah Spinosa and Trevor Murphy joined the group. On the research front, the board funded continued work by Ping Duan, a plant pathologist with the U.S. Department of Agriculture. …

Taking Available Tools to the Grove

Tacy CalliesHLB Management

The quest for long-term solutions to HLB is well underway. Technology like CRISPR is being developed to introduce tolerance or resistance to HLB. Conventional breeding also is seeking rootstocks and varieties that can resist the disease. In the meantime, growers are reminded to utilize available tools that help trees remain productive in an HLB environment. During the August Citrus & …

Planning Pointers for Insect Management

Tacy CalliesPests, Tip of the Week

By Lauren Diepenbrock Insect and mite management is a year-round challenge in Florida citrus. With the warm climate, pests are at the ready as soon as plant resources are available to them. With knowledge of insect and mite biology in relation to tree phenology, plans can be developed to protect fruit and maintain productive citrus trees. Populations of some highly …

Florida Citrus Industry Survey Reflects Industry Optimism

Tacy CalliesFlorida, Survey

By Frank Giles Last year’s citrus season was marred by continuing production declines from HLB and hurricanes. The combined effect of both dropped the final all-orange output to 15.8 million boxes. Certainly, the numbers reflected the dire situation the industry found itself in after the storms. But after last year’s harvest, growers were given clearance to utilize new trunk-injection therapies …

Updates on FDOC Research Projects

Tacy CalliesFlorida Citrus Commission, Florida Department of Citrus, Research

Florida Citrus Commission (FCC) members on Jan. 17 heard an update on one recent Florida Department of Citrus (FDOC) scientific research project and learned about some future research plans. Rosa Walsh, FDOC director of scientific research, presented the information. PROGRAM FOR EXPEDITED PROPAGATIONWalsh reported that the 2022–23 Program for Expedited Propagation of HLB Tolerant and Resistant Trees was successful. She …

European

Ups and Downs Expected for EU Citrus Crops

Tacy CalliesCrop Forecast, International

The U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) recently projected the European Union (EU) tangerine and mandarin crop will decline in 2023–24. The EU grapefruit crop is expected to rise compared to the prior season. TANGERINES AND MANDARINS EU tangerine and mandarin production in 2023–24 is forecast at 2.7 million metric tons (MMT), down from 2.8 MMT in …

weed management

Brassinosteroid and Weed Management Research Updated

Daniel CooperHLB Management, weeds

Brassinosteroids for HLB-infected trees and the latest on year-round weed management were discussed at a Jan. 17 OJ Break at the Citrus Research and Education Center in Lake Alfred, Florida. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) multi-county citrus Extension agent Chris Oswalt hosted the event. UF/IFAS assistant professors Fernando Alferez and Ramdas Kanissery made the presentations …

taxation

Efforts to Eliminate Multiple Ag Taxation in Florida

Daniel CooperAgriculture, Florida, Legislative

Florida Commissioner of Agriculture Wilton Simpson joined two state legislators Jan. 8 in announcing legislation to eliminate multiple taxation of agricultural production by annual local property taxes. Simpson, Sen. Jay Collins and Rep. Danny Alvarez announced the filing of a joint resolution, HJR 1251 and SJR 1560. The proposed constitutional amendment creates a total tax exemption of tangible personal property …

citrus

Aging Farmers Contribute to Japan’s Citrus Downtrend

Daniel CooperCrop Forecast, International

Japan’s citrus planted area and production are on a long-term downward trend. Reasons cited by the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) are aging farmers, labor shortages and a lack of successors for running farms. In a December annual report, USDA FAS summarized production, planted area and trade for each of Japan’s citrus varieties. TANGERINES/MANDARINS After a …

Irrigation Strategy to Enhance Fruit Growth and Retention

Tacy CalliesIrrigation, Tip of the Week

By Tripti Vashisth  Huanglongbing (HLB) severity is associated with small fruit sizes and lower fruit numbers at harvest. Moreover, small fruit are more likely to drop and drop earlier during preharvest fruit drop. Unfortunately, management practices suggested to increase fruit size or reduce drop have had mixed results. So, before looking for ways to increase fruit size and number, it …

CITRUS NURSERY SOURCE: Seeds Aplenty

Tacy CalliesCitrus Nursery Source

By Peter Chaires Beginning this month, Citrus Nursery Source (CNS) transitions to Citrus Industry magazine after 14 years in Florida Grower magazine. For those unfamiliar with this column, CNS covers citrus industry issues that are of potential interest to nurseries and the growers they serve. Recognizing that it is difficult for nursery owners and staff to regularly attend meetings, this …

Changes to U.S. Citrus Forecast

Tacy CalliesCrop Forecast

In the Jan. 12 citrus forecast from the U.S. Department of Agriculture’s National Agricultural Statistics Service (USDA NASS), Florida’s citrus crop estimates were unchanged from December, but other citrus-producing states saw changes. CALIFORNIA UPS AND DOWNSThe California forecast for oranges increased for both Valencias and non-Valencias. The Valencia crop rose from 7.5 million boxes to 7.8 million boxes. Non-Valencias increased …

Soft Citrus Forecast Up in South Africa

Tacy CalliesCrop Forecast, International, Mandarins

The U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) has forecast that South Africa’s tangerine/mandarin production will total 740,000 metric tons in 2023–24, up 4% from the prior season. Young trees coming into production is a primary reason for the increase. PLANTING EXPANSION SLOWSSouth Africa has 27,500 hectares of tangerines/mandarins, also known as soft citrus. The rapid expansion in …

fruit fly

Expansion of Medfly and Oriental Fruit Fly Quarantines

Tacy CalliesCalifornia Corner, Pests, Regulation

Federal and California officials have expanded a Mediterranean fruit fly (Medfly) quarantine in Los Angeles County and an Oriental fruit fly (OFF) quarantine in San Bernardino and Riverside counties. The actions were taken by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (USDA APHIS) and the California Department of Food and Agriculture (CDFA). The expansion of both …

The Egyptian Orange Industry

Tacy CalliesCrop Forecast, International

Egyptian orange production in 2023–24 is projected to increase 2.7% from the prior season to 3.7 million metric tons (MMT), the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS) reported. The increase in production is attributed to optimal weather conditions and temperatures during flowering of the trees, which increased fruit set and production. Oranges are the major citrus crop …

U.S. Lemon Crop on the Rise

Tacy Callieslemons

U.S. growers produced 1.12 million tons of lemons in 2022–23, an increase of 5.5% (or 58,000 tons) from last year, the U.S. Department of Agriculture’s Economic Research Service (USDA ERS) reported. One third of these lemons went to processing with the remainder going to the fresh market. California lemon production experienced rising acreage and yields with growers in that state …

Mexico Expects Citrus Crop Increases

Tacy CalliesInternational, Production

Mexico’s Ministry of Agriculture and Rural Development recently reported that Mexico produced more than 8 million tons of lemons, oranges and grapefruit in 2022. It stated that Mexico was in second, third and fourth place in world production of lemons, grapefruit and oranges, respectively. The ministry also pointed out many of the health benefits of consuming citrus. LEMONSFigures from the …

california

New Neonicotinoid Regulations in California

Tacy CalliesCalifornia Corner, Pesticides, Regulation

The California Department of Pesticide Regulation (CDPR) has adopted new regulations to protect pollinators from the hazards associated with exposure to neonicotinoid pesticides containing the active ingredients clothianidin, dinotefuran, imidacloprid and thiamethoxam. The regulations affect the application of these pesticides on certain food and feed crops, including citrus. Product labels will not be updated with these requirements. CDPR suggests that …

U.S. Tangerine Crop Recovers in 2022–23

Tacy CalliesMandarins

Production of U.S. tangerines, mandarins, clementines and tangelos (which collectively make up the tangerine group) for the fresh market reached 971,000 tons in 2022–23, up 32% from the prior season. California grows 95% of the U.S. tangerine crop, with its production concentrated in the San Joaquin Valley. Shipment data indicates that 823 million pounds of tangerines were shipped during peak …

sunlime

Finger Lime Interest Expands in Florida

Tacy CalliesLimes

Florida is not a major producer of finger limes — yet. Australia has the most finger lime acreage in the world, and most U.S. finger limes are grown in California and Hawaii. But Florida’s acreage is expanding, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) horticulturist Manjul Dutt reported during a Dec. 20 presentation at the Citrus Research …