Kaolin Particle Film Reduces HLB Pressure

Tacy CalliesHLB Management

Researchers found use of kaolin particle film on trees reduced populations of HLB-spreading psyllids and delayed HLB infection. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) assistant professor Christopher Vincent presented his research comparing red and white kaolin particle films with foliar insecticides during a recent UF/IFAS OJ Break webinar. According to Vincent, the particles of kaolin clay …

New Louisiana Citrus Research Facility

Ernie NeffResearch

The Arlene and Joseph Meraux Charitable Foundation has constructed a citrus research facility at the Docville Farm in partnership with the Louisiana State University (LSU) AgCenter. The new facility, called the Center for Louisiana Citrus Innovation and Research, is in Violet, Louisiana. “This facility will be utilized to support Louisiana citrus growers as well as promote citrus and other specialty …

Potential OJ Marketing Order Leaves Growers Hesitant

Tacy CalliesMarketing, Orange Juice

Many Florida citrus growers are skeptical of the proposed federal marketing order for orange juice (OJ). The proposed marketing order would allow all U.S. fruit used in OJ and all OJ imports to be assessed to share in the cost of marketing. This federal order, however, poses some potential drawbacks for Florida juice orange growers. The U.S. Department of Agriculture …

States See Changes in U.S. Citrus Forecast

Ernie NeffCrop Forecast

The U.S. Department of Agriculture’s (USDA) National Agricultural Statistics Service (NASS) dropped another 2 million boxes from the January forecast for Florida’s orange crop but added 200,000 boxes to the state’s grapefruit projection. ORANGESFlorida’s total orange crop is now forecast at 54 million boxes, down 4 percent from 56 million boxes in December. The orange reduction was in the non-Valencia …

Homeowner Canker Payments Coming

Ernie NeffLegal

Approximately 12,000 Lee County homeowners in Florida will receive checks in early January as compensation for citrus trees destroyed in the state’s citrus canker eradication program, according to attorney Robert Gilbert. Gilbert was the lead counsel representing the homeowners in a class action lawsuit for the past 17 years. According to Gilbert, the residential trees that were destroyed by the …

Compost Use and Weed Management

Tacy CalliesTip of the Week, weeds

By Ramdas Kanissery Application of compost as a soil amendment could be an integral part of citrus production’s best management practices. Compost application can potentially improve soil quality and provide additional nourishment to trees. Citrus-producing soils in Florida are generally sandy and low in soil organic matter. Compost addition tends to enhance the soil’s ability to retain both nutrients and …

Georgia Citrus Pest and Disease Update

Tacy CalliesDiseases, Georgia, Pests

As the Georgia citrus industry continues to grow and prosper, growers should be aware of the potential signs of citrus pests and diseases that could be looming in their groves. Bill Barber, Certified Crop Advisor and owner of Barber Ag Services, delivered a presentation during the 2021 virtual Southeast Regional Fruit and Vegetable Conference. He addressed pests and diseases presently …

FDOC Update: OJ Sales, Supply and Demand

Tacy CalliesOrange Juice

Shannon Shepp, executive director of the Florida Department of Citrus (FDOC), reports that total orange juice (OJ) sales are performing at 2016 levels. “In the four week-period ending Dec. 26, 2020, average year-over-year sales of total OJ increased 7.68 percent with nearly 37.39 million equivalent gallons sold, according to the latest Nielsen retail sales update,” Shepp says. “Volume sales of …

Third Packer for Cold-Hardy Citrus

Ernie NeffPacking

A third packinghouse started packing fresh South Georgia and North Florida citrus in 2020. The newest packer, The Satsuma Company, is in Tifton, Georgia. The others, Corbett Brothers in Lake Park, Georgia, and Florida Georgia Citrus in Monticello, Florida, have been packing citrus since 2016. “I have visited all three facilities in South Georgia and North Florida,” said Lindy Savelle, …

Louisiana Faces Several Citrus Woes

Ernie NeffLouisiana

Hurricanes, development, demographics, disease and other issues combined in recent decades to severely reduce citrus acreage and crops in Plaquemines Parish, which has the majority of Louisiana growers. According to Louisiana State University (LSU) AgCenter, the state has only 841 acres of citrus remaining. Anna Timmerman, LSU AgCenter horticultural Extension agent, discussed the industry’s woes in the parish that she …

orange juice

New Dietary Guidelines Include Role for Juice

Ernie NeffOrange Juice

The newly released 2020–2025 Dietary Guidelines for Americans (DGA) continue to reinforce that nutrient-dense 100 percent fruit juices, such as orange juice (OJ), count as a fruit serving. They also continue to include 100 percent fruit juice as a part of a healthy dietary pattern. The guidelines support the incorporation of beverages such as 100 percent OJ into the daily …

Dormant Sprays for Asian Citrus Psyllid Management

Tacy CalliesPsyllids

By Jawwad Qureshi Several studies have documented the positive effects of controlling the Asian citrus psyllid (ACP, Figure 1) for citrus tree health and sustainability in Florida. The mature blocks established before and after the discovery of huanglongbing (HLB) in 2005 continue to benefit from psyllid control. One psyllid is enough to infect a tree with HLB for life, and …

SFWMD Accepting Applications for Cost-Share Water Projects

Tacy CalliesWater

The South Florida Water Management District (SFWMD) announced it is accepting applications for cost-share projects to develop alternative water supply projects and water conservation projects. This is part of the state of Florida’s continuing efforts to identify and implement cost-effective strategies to protect its water resources while meeting Florida’s water needs. Partnering with local governments and other entities for implementation …

acp

Time for ACP Dormant Season Sprays

Tacy CalliesHLB Management, Tip of the Week

By Lauren Diepenbrock Pest management is an ongoing effort in Florida citrus. Taking advantage of pest life cycles, whether they are tied to the season or plant phenology, can make management efforts have greater impacts on pest populations. For many citrus growers, managing the impacts of Asian citrus psyllid (ACP), the vector of huanglongbing (HLB), is part of the annual …

Breeding Hybrids With HLB Resistance

Len WilcoxBreeding, California Corner

UC Riverside scientists are working to breed new fruits that are naturally resistant to huanglongbing (HLB). The hybrid fruits will ideally share the best of their parents’ attributes: the tastiness of citrus and the HLB resistance displayed by some Australian relatives of citrus. HLB, also called citrus greening disease, has been detected in California, where 80 percent of the country’s …

Irrigation Management With Artificial Intelligence

Tacy CalliesIrrigation

Artificial intelligence (AI) can be an overwhelming topic, but Sandra Guzmán says it is easier to swallow when it helps growers. Guzmán, an agricultural engineering assistant professor at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Indian River Research and Education Center, has been working directly with growers to integrate the benefits of in-field technology. The influx …

Organic Acid, HLB Link Found

Ernie NeffResearch

One obvious symptom of HLB is leaf chlorosis — yellow blotches appearing on otherwise dark green citrus leaves. Although chlorosis can indicate other health issues, in trees affected by HLB, it’s thought to be triggered by the underlying bacterial infection causing the disease. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) plant pathologist Nabil Killiny conducted a study …

Grapefruit Juice Demand Is Strong

Ernie NeffGrapefruit

There were numerous reports in 2020 about the significant increase in consumer demand for orange juice (OJ) at the retail level during the COVID-19 pandemic. But Florida Department of Citrus economist Marisa Zansler recently reported that “the same can be said about the significant increases in sales volumes of other citrus products … Notably, within the retail fruit juice category, …

Flowering Intensity, Shoot Dieback and HLB

Tacy CalliesHLB Management

Citrus trees grown in Florida continuously undergo various types and levels of stress. Stressors can include severe weather conditions, soil pH, chemicals, pests and diseases. The constant presence of HLB and psyllid infestation adds further stress to the tree, compromising overall tree health. Off-season flowering and prolonged flowering are common responses of trees when undergoing various stress conditions. Off-season and …

Choosing a Lemon Rootstock

Tacy Callieslemons, Rootstocks

By Kim D. Bowman Lemons are a relatively small part of the Florida citrus crop. But with more than 317,000 lemon trees propagated in Florida nurseries over the past two years, lemons are clearly gaining increasing interest from growers trying to find a crop that is easier to grow and with a quick return on investment. As is the case …