Bud Advisories Help Growers Time Psyllid Sprays

Tacy CalliesIndustry News Release

The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) is reminding citrus growers that flower bud advisories are now being issued. The UF/IFAS advisories can help growers determine when to spray for HLB-spreading Asian citrus psyllids and when to stop spraying in an effort to protect pollinating bees. Tripti Vashisth, a UF/IFAS associate professor of horticultural sciences, will …

Steam Aids Herbicide in Goat Weed Control

Tacy Calliesweeds

Using steam and a low dose of herbicide helped control goat weed in citrus better than a higher dose of herbicide, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers found. Goat weed, which poses major challenges for citrus, is found throughout the Southeast — from Texas, east to South Carolina and south to Florida. “It produces many …

Potassium and Silicon Improve Cold Hardiness

Tacy CalliesCold Hardy, Tip of the Week

By Muhammad Shahid Winter freeze is the main threat to the emerging citrus industry in North Florida, South Georgia and Southeast Alabama. Growers use microsprinkler irrigation as a freeze-protection strategy to protect the graft union of young trees, but it is not very effective in protecting aboveground plant parts in established trees. PLANT PROTECTIONUse of stress-mitigating substances could be an …

Research Team Aims for HLB Resistance/Tolerance

Tacy CalliesHLB Management, Research

A team led by Clemson University is receiving a second multimillion-dollar federal grant to continue research into HLB. Feng Luo, the Marvin J. Pinson, Jr. ’46 Distinguished Professor in the School of Computing, is the principal investigator. The project is funded with $4.1 million from the U.S. Department of Agriculture’s National Institute of Food and Agriculture (USDA NIFA). Co-principal investigators …

orange

Brazil’s Orange Forecast Declines

Daniel CooperBrazil, Crop Forecast

The updated forecast for the 2023–24 orange crop in Brazil’s citrus belt is 307.22 million boxes of 40.8 kilograms each. That’s a reduction of 2.12 million boxes, or 0.7%, from the September forecast of 309.34 million boxes. The update was issued Dec. 11 by Fundecitrus in cooperation with its partners. The forecast, by varieties, is: IMPACTS ON FRUIT SIZE In …

citrus forecast

Improvements to Florida Citrus Forecast

Daniel CooperCrop Forecast, Florida

In the Dec. 8 citrus forecast from the U.S. Department of Agriculture’s National Agricultural Statistics Service (USDA NASS), Florida’s grapefruit and tangerine/tangelo production estimates increased. The all-grapefruit forecast for Florida leaped 26% compared to the season’s initial forecast in October. The state’s tangerine and tangelo forecast climbed 10%. All other variety forecasts in the citrus-producing states — Arizona, California, Florida …

climate

Heat Wave in Brazil Concerns Citrus Growers

Daniel CooperBrazil, Production, Weather

According to the Center for Advanced Studies on Applied Economics (CEPEA), a new heat wave in Brazil’s São Paulo state has been concerning citrus growers. Temperatures are higher than those registered in the last wave in September and are lasting longer. Many producers say that the weather may affect 2024–25 production, but it is still too early to estimate possible …

fresh

U.S. Fresh Oranges Up; OJ Down in 2022–23

Daniel CooperFresh, Orange Juice, Production

The fresh-market orange crop in the United States rose 2% in 2022–23 compared to the prior year, to 1.44 million tons, the U.S. Department of Agriculture’s Economic Research Service reported this fall. The increase was due to larger navel orange and early/midseason crops in California and Texas. FRESH FRUIT PRICES FALL With increased supply, grower prices for fresh oranges were …

diversification

Diversification Continues to Be Key for Cold-Hardy Region

Daniel CooperCold Hardy, Varieties

Diversification is key to production remaining sustainable in the cold-hardy citrus region. It is message that industry leaders preach to producers who are looking to grow the citrus industry in North Florida, Georgia and Alabama. John Chater, assistant professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, talked about the importance …

fruit fly

Oriental Fruit Fly Quarantine Expanded in California

Daniel CooperCalifornia Corner, Pests, Regulation

The Oriental fruit fly (OFFor Bactrocera dorsalis) quarantine in San Bernardino and Riverside counties in California was expanded in October and November by federal and state agriculture authorities. The actions were taken on Oct. 12, Nov. 3, Nov. 9 and Nov. 17 by the U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and the California Department of …

vincent

Vincent Awarded Fellowship in Environmental Protection and Stewardship

Daniel CooperAwards, Environment

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researcher Christopher Vincent was awarded an Early-Career Research Fellowship in the Environmental Protection and Stewardship track from the Gulf Research Program (GRP) of the National Academies of Sciences, Engineering and Medicine. Vincent is an associate professor of citrus tree ecophysiology in the Horticultural Sciences Department at the Citrus Research and …

areas

Fundecitrus Repudiates Articles About Citrus Greening

Daniel CooperBrazil, Citrus Greening

Fundecitrus says it repudiates recent articles that claim productivity in Brazil’s São Paulo and Minas Gerais citrus belt will be reduced by 60% in the next five years due to citrus greening disease. Fundecitrus says Chilean and Spanish news portals published such reports on Nov. 14.  According to Fundecitrus, this information is not valid, nor was it ever provided by …

blood oranges

Blood Oranges May Be Option for Cold-Hardy Region

Daniel CooperCold Hardy, Varieties

Blood oranges could provide citrus growers with another variety to grow in the cold-hardy citrus region. But further research is needed to verify its effectiveness in the Southeast, says Ali Sarkhosh, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) associate professor. “We harvested those fruit in Quincy at the North Florida Research and Education Center. We still don’t …

climate change

Climate Change Impacts Mediterranean Citrus

Daniel CooperInternational, Production, Weather

Turkey’s citrus industry has already experienced effects from climate change, Okan Ozkaya, professor at Cukurova University, reported in a recent World Citrus Organisation (WCO) presentation. His presentation was titled Impact of Climate Change in the Citrus Sector in Turkey and the Broader Eastern Mediterranean Area. “Climate change has been a scenario for many years, but we started to see the …

citrus crop forecast

Congressmen Urge USDA to Buy California Navels

Daniel CooperCalifornia Corner, Fresh

Four California congressmen recently asked U.S. Secretary of Agriculture Thomas Vilsack to have the U.S. Department of Agriculture (USDA) buy $100 million worth of California navels. The orange purchase would help alleviate the impacts of storms. The letter from Congressmen Jim Costa, David Valadao, Doug LaMalfa and Josh Harder follows: We write in support of the Section 32 request submitted …

greening

Brazilians Discuss How to Avoid Florida’s Fate With Greening

Daniel CooperBrazil, HLB Management

Brazil’s government, institutions and citrus growers need to join efforts to overcome greening “so that Brazil does not go through the same situation as Florida,” a São Paulo agriculture official declared Nov. 7. Orlando Melo de Castro, undersecretary of agriculture, made those remarks to about 500 people at an international citrus symposium in Araraquara, São Paulo. “To this end, we …

July

All In For Citrus Podcast, November 2023

Daniel CooperAll In For Citrus Podcast, HLB Management, International

Michael Rogers, the director of the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center, and some of his colleagues recently attended the Asian Citrus Congress in India. During the November All In For Citrus podcast, Rogers discusses what was learned and observed on the trip. While many of India’s citrus groves are small-scale …

Brazilian

Economist Provides Brazilian Citrus Update

Daniel CooperBrazil, Economics, Florida Department of Citrus

Agriculture is the driving force in the Brazilian economy, and Brazil is a leading food supplier to the global market, economist Marisa Zansler told the Florida Citrus Commission (FCC) at its last meeting. Zansler is director of economic and market research at the Florida Department of Citrus (FDOC). She visited Brazil in August and provided the FCC with an update …

lebbeck mealybug

New Knowledge on Lebbeck Mealybug Can Aid Control

Daniel CooperPests

Lebbeck mealybug populations are not tied to flush production, entomologist Lauren Diepenbrock reported recently. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor also noted: Diepenbrock sampled lebbeck mealybug populations in commercial citrus groves in Central Florida. Analysis of the seasonal trapping data provided easily observable trends. Based on these trends, she offers the following initial …

Measuring California’s Citrus Environmental Benefits and Impacts

Josh McGillCalifornia Corner, Survey

Major retailers have been asking questions about the citrus industry’s sustainability efforts. In response, a California citrus industry life cycle analysis project will quantify the net environmental benefits and impacts of citrus production in a typical year. The information will be gathered from a survey developed by researchers at the University of California, Davis (UC Davis), with support from the …