Florida growers, Extension agents and others have been baffled by unusual trunk symptoms during what Evan Johnson termed “the year of the weird trunk disorder.” Growers spotted the disorders, which were similar to phytophthora, in groves over the past one and half to two years. Johnson addressed three of the disorders, which have been found in multiple counties. Johnson, a …
Area-Wide Pest Management of Florida Citrus
Ariel Singerman, University of Florida assistant professor, made an online presentation during the recent Agricultural and Applied Economics Association annual meeting. He shared his research on the implementation of area-wide pest management throughout the state of Florida. “Diminishment of pest populations by farmers on their own farm is the most widely used strategy for pest control. However, this is compromised …
Industry Split on OJ Marketing Order
A Florida citrus Industry Review Committee has divergent opinions about a possible federal marketing order for orange juice (OJ), Florida Citrus Mutual CEO Mike Sparks reported after the group met last week. “There were some that wanted to roll up their sleeves and continue work. There were a couple of committee members that had heard enough” and didn’t want to …
CRDF Looking at Peptide for HLB
When news broke in July that University of California Riverside (UCR) scientists had found a peptide that might control HLB, Rick Dantzler quickly contacted lead UCR scientist Hailing Jin. Dantzler is chief operating officer of the Citrus Research and Development Foundation (CRDF), which was organized in Florida primarily to find ways to solve or cope with HLB. Jin had found …
Citrus Disease: What to Watch for in Georgia
The citrus greening disease (huanglongbing or HLB) that has devastated Florida’s citrus industry over the past decade has not affected Georgia commercial production. However, growers should still be aware of the potential danger it can bring. According to Jonathan Oliver, fruit pathologist and Extension specialist in the Department of Plant Pathology at the University of Georgia (UGA), all confirmed HLB-positive …
California Citrus Movement Rules Amended
The Citrus Pest & Disease Prevention Program, an agency of the California Department of Food and Agriculture (CDFA), has revised the rules governing shipment of citrus within the state. The rules are in place to protect commercial citrus groves from the threat of huanglongbing (HLB) disease. Effective July 31, 2020, bulk citrus fruit may be shipped directly to a packinghouse …
Made in the Shade
Feral citrus growing in natural hammocks reveals insights about production and HLB. By Christopher Vincent and Anirban Guha Would you rather go outside in August and stand for a few hours in the sun or in the shade? It turns out citrus prefers the shade, too. In the past two years, we have been researching the health of citrus growing …
California Ag Responds to COVID-19 Pressure
Now a COVID-19 hot spot, California agriculture has been working to protect its labor force from the pandemic. However, COVID-19 exposures have occurred and illness reports are on the rise. “Rising rates in the Central Valley are concerning. California is making $52M available to increase testing, contact tracing and quarantine efforts, and sending strike teams to four counties with increased …
IPM Approaches to Reduce Psyllid Populations
Lukasz Stelinski recently shared integrated pest management strategies for reducing Asian citrus psyllid (ACP) populations to optimize tree health and yield. The University of Florida Institute of Food and Agricultural Sciences professor of entomology and nematology presented the information during the 2020 virtual Florida Citrus Industry Annual Conference. Even with approximately 100 percent of Florida citrus trees infected with huanglongbing …
Win a $200 Bass Pro Gift Card at Citrus Expo
The Citrus Expo and Vegetable & Specialty Crop Expo are coming to you this year! The popular annual events will be virtual to present information to growers in a safe way against the backdrop of COVID-19. Join us for the virtual event on Aug. 19–20 as we bring the citrus, vegetable and specialty crop (VSC) industries together in this new …
Steger Forecast for Florida Oranges
Elizabeth Steger, president of Citrus Consulting International, has forecast Florida’s 2020-21 orange crop at 62 million boxes. That is 8.35 percent fewer oranges than the 67.65 million boxes the state produced last season. [See the final 2019-20 season forecast by the U.S. Department of Agriculture (USDA) here.] Steger has been forecasting the size of Florida’s orange crop prior to the …
First CLas-Positive ACP Found in California Grove
An Asian citrus psyllid (ACP) sample has been confirmed positive for Candidatus Liberibacter asiaticus (CLas), the bacteria that causes huanglongbing (HLB). The sample was collected from a commercial citrus grove in the Woodcrest area of Riverside County. Confirmed by Citrus Research Board’s Jerry Dimitman Laboratory, this single adult psyllid is the first CLas-positive ACP found in a commercial citrus grove …
Citrus Expo to Cover Wide Range of Production Topics
The Citrus Expo team and the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) have joined forces to offer educational sessions in a virtual format for this year’s Citrus Expo. On Aug. 19–20, the 2020 seminar program will debut online at CitrusExpo.net at 9:30 a.m. Attendees will be able to watch videos of research presentations. With safety as …
Reusing Oilfield Produced Water for Irrigation
California citrus growers and other farmers in the Bakersfield area may feel vindicated with the result of a new study by researchers at Duke University and RTI International. As reported in the California Department of Food and Agriculture Planting Seeds blog, the study finds that reusing oilfield water that’s been mixed with surface water to irrigate farms in the Cawelo …
Citrus Expo Seminar Schedule Now Available
Citrus Expo is coming to you this year! The popular annual event has gone virtual in order to deliver the information to growers that they need. On Aug. 19–20, the 2020 seminar program will debut online at CitrusExpo.net at 9:30 a.m. Attendees will be able to watch videos of the research presentations from their computer or cell phone. See the …
Mexfly Quarantine Reduced in Texas
The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) and the Texas Department of Agriculture (TDA) in late July removed the Mexican fruit fly (Mexfly) quarantine area in Lasara, Texas. Lasara is in Willacy County. The quarantine in Lasara had been established in January. The agencies had restricted interstate movement of regulated articles from the area to …
The Future Faces of Florida Citrus
Meet the four students who received the FMC Citrus Ag Production Scholarships. By Tacy Callies The FMC Citrus Ag Production Scholarships (CAPS) program, a partnership between AgNet Media and FMC, was created to support Florida citrus production and encourage interested youth to pursue careers in citrus. Two University of Florida students and two Florida Southern College students each were awarded …
Core CEUs Available Online
Are you a Florida grower in need of Core continuing education units (CEUs) to renew your restricted-use pesticide license? A new CEU Central article is now available from Citrus Industry magazine. The article, “Understanding pesticide labeling” by Amir Rezazadeh, can be found in the August issue of Citrus Industry magazine and online here. Rezazadeh is multi-county fruit and field crops …
Kaolin Particle Films for Citrus Under HLB Pressure
Managing the Asian citrus psyllid (ACP) that spreads citrus greening disease (HLB) has become a crucial task at the forefront of much research. One management option that has proven to reduce ACP populations while increasing tree growth and yield is particle film. During the 2020 virtual Florida Citrus Industry Annual Conference, University of Florida Institute of Food and Agricultural Sciences …
Australia Citrus Harvest to Resume
Citrus Australia is relieved the citrus harvest in New South Wales (NSW) can resume following the NSW government’s decision to overturn its ban on seasonal workers overnight. Citrus Australia CEO Nathan Hancock has urged the government to consult with relevant communities and industries before making such drastic changes in the future. As of Thursday night, seasonal workers who reside in …