Early HLB Detection by Dogs

Josh McGillHLB Management, Research

By Amir Rezazadeh Huanglongbing (HLB), or citrus greening disease, has caused more than 70% decline in the production of oranges for juice and the fresh market in Florida. Once a tree is infected, there is no cure. Early detection followed by a rapid response is important to avoid further spread of the exotic pathogen. Delayed detection of HLB can result in …

Flavor Summit Delves Deep Into the Science of Taste

Josh McGillCitrus, Florida, Research

In late February, the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) hosted its second annual Flavor Summit. The hybrid in-person/online event was held at the Citrus Research and Education Center (CREC) in Lake Alfred. CREC and the UF Center for Smell and Taste hosted the event that took a deep dive into the science of how flavors …

Building a Brand for Cold-Hardy Citrus

Josh McGillCitrus, Cold Hardy

A new brand name for citrus grown in Georgia, North Florida and Alabama should ensure consumers they are purchasing a quality product. Much like Georgia Grown and Fresh From Florida, Sweet Valley Citrus assures consumers and industry members that citrus grown and marketed under this label is high-quality produce. Kyli Lamar, who serves on the board of directors for the …

Controlling Mites in CUPS

Josh McGillCitrus, Pests

Emilie Demard is working to control mites and other pests that damage fresh grapefruit growing as citrus under protective screens (CUPS) at the Indian River Research and Education Center in Fort Pierce.  “I look at biological control — in this case, predatory mites controlling pest mites to minimize the need for agrochemicals,” said Demard, a Ph.D. entomology graduate with the …

Orange Juice in Europe: Production, Consumption and Trade

Josh McGillExport/Import, International, Orange Juice

European Union (EU) orange juice (OJ) production is forecast at 70,390 metric tons (MT) in 2021–22, the U.S. Department of Agriculture’s Foreign Agricultural Service reported. That’s a drop of almost 10% compared to the previous period due to the expected decline in EU orange supply. Spain is the major orange processor in the EU, followed by Italy. Approximately 20% of …

Picking Favorites at Florida Citrus Variety Display Day

Josh McGillCitrus, Florida, Varieties

The horticultural characteristics of new citrus varieties are important, especially in the era of HLB when disease tolerance is critical. But how the fruit tastes and other consumer attributes are equally important. That’s why citrus variety display days are vital in citrus breeding. The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center in …

Achieving Water and Nutrient Efficiency

Josh McGillIrrigation, Nutrition, Research

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers emphasized the importance of efficient irrigation and nutrient management at a workshop earlier this month at the Citrus Research and Education Center in Lake Alfred. In Florida, the citrus industry accounts for about 30% of irrigated cropland acreage, reported UF/IFAS researcher Alisheikh Atta. Worldwide, the agriculture industry consumes about …

Get Canker Before It Gets You

Josh McGillDiseases, Tip of the Week

By Megan Dewdney Spring is around the corner, and Florida’s first wave of bloom is here. But there is no time to relax and enjoy the flowers because citrus diseases wait for no grower. Young fruitlets become susceptible to canker toward the end of March to the beginning of April. Missing that key window of protection — if the weather …

Florida Citrus Growers Say Freeze Damage Still Unfolding

Tacy Calliesfreeze

With more than two weeks past since the late January freeze in Florida, citrus growers are still assessing the fallout. Some key production regions saw the coldest temperatures in years. With HLB endemic, there’s a lot of unknowns how trees will react to the stress the cold temperatures induced. However, some growers didn’t have to wait to see damage to …

Florida Orange Ratio and Brix Requirements Reduced

Tacy CalliesFlorida, Regulation

In response to citrus damage from a late January freeze, the Florida Citrus Commission (FCC) on Feb. 3 lowered the minimum ratio requirement for oranges to 8.5:1 with a minimum Brix of 8 for fresh and processed fruit. Florida Citrus Mutual (FCM), the state’s largest citrus grower association, asked for the emergency action on Jan. 31. FCM CEO Mike Sparks …

Workshop to Focus on Irrigation and Nutrition

Josh McGillEducation, Irrigation, Nutrition

Citrus growers depend on the latest information about best irrigation and nutrition strategies for growing productive trees. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers will share recent results regarding optimal crop management at a workshop and field visit opportunity on Feb. 8 at the Citrus Research and Education Center (CREC) in Lake Alfred. Davie Kadyampakeni, assistant …

European

Tangerine Crop to Climb in Turkey

Ernie NeffInternational

Tangerine production in Turkey is forecast to increase 9% in 2021-22 to 1.75 million metric tons (MMT), the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported recently. Production in 2020-21 was 1.6 MMT. High yields per tree and increasing orchard areas and bearing trees are also expected due to favorable weather conditions in the Mediterranean region. However, the yield …

Plan Insect and Mite Management for 2022

Josh McGillHLB Management, Pests, 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 to protect fruit and maintain productive citrus trees can be developed. MAJOR PESTSPopulations of some …

Water, Labor Boost Australia Crop

Ernie NeffInternational

Increased water availability and the expectation of more harvest labor, along with increased planting area, are reasons for the citrus crop forecast increase in Australia, according to the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS). FAS recently reported that the total planted area of navel and Valencia oranges in Australia has increased by 14% from 15,307 hectares (ha) in …

The State of the Citrus Industry in Japan

Ernie NeffInternational, Production

In a short summary about citrus in Japan, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reports that the country’s mandarin production continues to decline amid labor shortages and reduced consumption. Shipping challenges and rising prices are projected to reduce the consumption of largely imported oranges and grapefruit. MANDARINSTangerine/mandarin production for 2021-22 is forecast at 924,000 metric tons (MT), …

United States to Accept Pummelos From Vietnam

Josh McGillInternational, Regulation

The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) has proposed that fresh pummelo fruit can be safely imported from Vietnam into the United States. The proposal is part of a pest risk assessment and risk management document that APHIS prepared. Vietnam’s Deputy Minister of Agriculture and Rural Development Tran Thanh Nam said in early January that U.S. …

Orange Crop to Decline in Europe

Josh McGillInternational, Production

European Union (EU) orange production is forecast at 6.1 million metric tons (MMT) for 2021–22 by the U.S. Department of Agriculture’s Foreign Agricultural Service. That’s 6% lower than the previous season and 3.3% lower than the EU’s 10-year average of 6.3 MMT. PRODUCTIONSpain and Italy represent 80% of the EU’s total production of oranges. The remaining 20% is distributed among …

Multistate Scientists Seek HLB Tolerance

Josh McGillHLB Management, Research

A $1.5 million emergency grant is enabling scientists in citrus-producing states to find trees tolerant to the devastating citrus disease HLB. The disease has crippled Florida’s citrus industry and has already been detected in California, which grows 80% of America’s fresh citrus. The National Institute of Food and Agriculture is supporting scientists at the University of California, Riverside (UCR); the University …

Egypt to Remain Top Orange Exporter

Josh McGillExport, International

Egypt is expected to maintain its position as the world’s leading fresh orange exporter in 2021–22 despite production challenges, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported. The country is expected to export 1.45 million metric tons (MMT), down from 1.67 MMT in 2020–21. The decrease in exports is attributed to lower production amid unfavorable climate conditions. Russia, …

Orange Quality and Quantity in Turkey

Ernie NeffInternational

The fresh orange yield in Turkey for 2021-22 is forecast to increase 40% to 1.82 million metric tons (MMT) due to favorable rainy weather conditions, the U.S. Department of Agriculture’s Foreign Agricultural Service (FAS) reported. However, in recent months, producers have become concerned about drought conditions affecting the quality of the fruit. In 2020-21, Turkey produced 1.3 MMT of oranges. …