Natural Compounds Might Fight HLB

Josh McGillHLB Management, Research

The U.S. Department of Agriculture (USDA) has awarded Florida International University (FIU) scientists $500,000 to investigate natural compounds that could suppress or even eliminate the bacteria that causes HLB. FIU Institute of Environment researcher Kateel Shetty is leading the search for an antimicrobial compound that could help citrus growers. The FIU team’s theory is that if they can identify a …

Psyllids and HLB in Georgia Citrus

Josh McGillGeorgia, Psyllids

When commercial citrus acreage started migrating north some years ago, the big question was: To what extent would Asian citrus psyllids (ACP) and HLB migrate with the crop? With citrus getting well established in South Georgia, the pest and disease are there, but not yet at devastating levels like in Florida. Johnathan Oliver, an assistant professor of fruit pathology with …

Drought to Cut Argentine Lemon Production

Josh McGillCrop Forecast, International, lemons

Due to a drought, lemon production in Argentina is forecast to decline to 1.77 million metric tons (MMT) in 2022–23, down 130,000 metric tons (MT) from the prior year. The drought is expected to continue through the Southern Hemisphere summer of 2023 due in part to the third La Niña weather pattern in a row. The forecast was issued by …

Refreshed Format for Florida Grower Citrus Show

Josh McGillEvents

Over the years, the Florida Grower Citrus Show has become the premier event for growers on the East Coast of Florida while drawing growers from other key production regions as well. Last year, AgNet Media purchased the assets of Florida Grower magazine. With that transaction came the show. Since that time, the team at AgNet Media, along with its partners …

Old Variety Gets a New Look

Josh McGillAll In For Citrus Podcast, Varieties

The Parson Brown is an early-season sweet orange that J.L. Carney identified in 1875. By the 1920s, the variety had become a popular cultivar among growers, but eventually plantings declined as Hamlin became the go-to selection for the early season. However, because of its apparent tolerance to HLB, Parson Brown is again stirring interest among growers. Manjul Dutt, assistant professor …

Legislation Introduced in Hurricane Relief Effort

Josh McGillhurricane, Legislative

Rep. Scott Franklin (FL-18), Rep. Debbie Wasserman Schultz (FL-25) and Sen. Rick Scott (R-FL) introduced the Block Grant Assistance Act of 2023, a critical bill to ensure the U.S. Department of Agriculture (USDA) can provide needed relief to agriculture producers devastated by Hurricanes Ian and Nicole. This bill will provide the agriculture secretary needed authority to provide block grants to …

Trunk Injection for HLB: What You Need to Know

Josh McGillHLB Management

Some Florida citrus growers have recently started oxytetracycline hydrochloride (OTC-HCl) injection into tree trunks to help manage HLB. Other growers are considering it. Researcher Ute Albrecht offered a list of best practices for the product’s use during a Jan. 31 presentation in Immokalee. The presentation was made at the University of Florida Institute of Food and Agricultural Sciences Southwest Florida …

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Most Israeli Citrus Crops to Increase

Josh McGillCrop Forecast, International

Production increases are forecast for Israeli mandarins/tangerines, grapefruit and lemons in 2022–23 compared to the prior year, while orange production is projected to decline sharply. The forecast is from the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS). MANDARIN/TANGERINETotal mandarin and tangerine production in 2022–23 is forecast at 170,000 metric tons (MT), up from 159,000 MT the prior season. …

Sting Nematodes and IPCs

Josh McGillIPCs, Pests, Tip of the Week

By Larry Duncan and Fernando Alferez Newly planted citrus trees are far less tolerant of pests and diseases than when mature. Sting nematode (Belonolaimus longicaudatus) was not considered a serious economic threat to Florida citrus until successive hard freezes in the 1980s caused widespread replanting of groves. Patches of stunted, declining trees caused by the irregular distribution of sting nematodes …

Considerations for Managing Citrus Black Spot

Josh McGillDiseases

In Florida, citrus black spot (CBS) is present primarily in commercial groves in five southwest counties (Charlotte, Collier, Glades, Hendry and Lee). The disease can cause up to 60% yield loss in severe situations with little management, researcher Megan Dewdney reported in January. More commonly though, growers with infestations experience fruit drop levels of 10% to 20% in a minimally …

Mexican Orange Production and Trade

Josh McGillCrop Forecast, Mexico, Orange Juice

Mexican orange production in 2022–23 is forecast at 4.2 million metric tons (MMT), 9% lower than the previous year, due to prolonged drought in northeastern Mexico. The forecast was issued by the U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS). Mexico is estimated to be the fifth-largest orange producer in the world behind Brazil, China, India and the United …

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All About Peru’s Mandarin/Tangerine Industry

Josh McGillCrop Forecast, International, Mandarins

The U.S. Department of Agriculture Foreign Agricultural Service (USDA FAS) has forecast Peruvian mandarin/tangerine production at 550,000 metric tons (MT) in 2022–23, decreasing 4% from the previous year. Peruvian mandarin/tangerine production area is estimated at 23,000 hectares. Harvest season runs from March to November. The major mandarin/tangerine production areas are in the central semi-tropical coastal regions with good availability of …

Sneak Peek: February 2023 Citrus Industry

Josh McGillDiseases, Sneak Peek, weeds

With more growers incorporating compost and organic amendments into their production, weed management is receiving increased attention. University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) authors Ramdas Kanissery and Mahesh Bashyal take on this topic in their article in the February 2023 issue of Citrus Industry magazine. While compost and organic amendments can increase soil health and boost …

A Look at South Carolina Citrus

Josh McGillCold Hardy, Research

Citrus has been making its way north in recent years. So far, growers in North Florida and Georgia have had success producing the crop, with only minor incursions of HLB, the disease that has been devastating in Florida’s traditional citrus production areas. The Southeast Regional Fruit & Vegetable Conference, held in Savannah earlier this month, included a citrus program for …

Planning Your 2023 Pest Management

Josh McGillPest Management, Tip of the Week

By Lauren Diepenbrock Pest 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 problematic pests …

Guidelines for ReMedium TI Use

Josh McGillHLB Management, Pesticides

Trunk injection of the oxytetracycline hydrochloride formulation ReMedium TI for HLB treatment was given final clearance Jan. 11. The product began moving into the Florida citrus industry that same day. Consequently, the product’s manufacturer and the Citrus Research and Field Trial (CRAFT) Foundation both issued reminders and recommendations about the product’s use. Manufacturer TJ BioTech, LLC suggested the following things …

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All In For Citrus Podcast, January 2023

Josh McGillAll In For Citrus Podcast, Events

The January All In For Citrus podcast kicks off 2023 with a recap of a recent citrus program on gibberellic acid as well as a preview of a host of upcoming events. Michael Rogers, director of the Citrus Research and Education Center, provides details on the various seminars scheduled on topics ranging from trunk injection to the new and improved …

accuweather

Artificial Intelligence to Assess Crop Damage

Josh McGillhurricane, Technology

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers plan to use artificial intelligence (AI) technology to quantify damage to fruits and vegetables caused by extreme weather events. One such extreme weather event was Hurricane Ian, which struck Florida on Sept. 28, 2022. The storm’s damage to all crops, livestock and aquaculture products was initially estimated at up …

Costa Rica Orange Crop to Rise

Josh McGillCrop Forecast, International

Orange production in Costa Rica is forecast to increase almost 2% in 2022–2023, to 305,000 metric tons (MT), according to the U.S. Department of Agriculture’s Foreign Agricultural Service (USDA FAS). Denser plantings on larger farms have driven up yields, and HLB management programs mitigate the worst impacts of the virus. HLB was first identified in Costa Rica in 2011. Harvest …

Citrus Leaders Provide Disaster Testimony

Josh McGillfreeze, hurricane

Florida agriculture took a wallop from Hurricane Ian last year. Throw in another hurricane (Nicole) and a freeze, and the disaster losses stacked up. The state’s citrus industry took a particularly hard hit. On Jan. 17, citrus industry representatives headed to Tallahassee to testify before the Florida Senate Agriculture Committee about the toll these weather events had on an already …