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IFAS News

University of Florida

UF/IFAS scientist to spread knowledge at World Avocado Congress

Topic(s): Agriculture, Biocontrols, Crops, Economics, Environment, IFAS, New Technology, Pests, RECs, Research

Jonathan Crane, professor of horticultural sciences, inspecting an avocado tree at the Tropical Research and Education Center.

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GAINESVILLE, Fla. — With the laurel wilt pathogen threatening the Florida avocado industry, a UF/IFAS tropical fruit scientist will lend his expertise at the World Avocado Congress in September in Lima, Peru.

Jonathan Crane, professor in horticultural sciences, will give an opening presentation titled: “The Potential for Laurel Wilt to Threaten Avocado Production is Real” at the meeting, Sept. 13-18. With this talk, Crane will provide evidence that laurel wilt will spread throughout North America and will pose a threat to native trees and to commercial avocado production.

Later, Crane will present a paper titled: “Current status and control recommendations for laurel wilt and the ambrosia beetle vectors in commercial avocado orchards in South Florida.” Crane co-authored the paper with Daniel Carrillo, assistant professor in entomology; Randy Ploetz, professor in plant pathology; Edward Evans, associate professor in food and resource economics and Aaron Palmateer, associate professor in plant pathology – all of whom work at the UF/IFAS Tropical Research and Education Center in Homestead. The final co-author is Don Pybas, director of the Florida Avocado Administrative Committee.

Several ambrosia beetle species transmit the laurel wilt pathogen to avocado trees, killing most of them, threatening an industry with a $100 million-a-year economic impact on Florida. The original ambrosia beetle vector of laurel wilt was discovered in the U.S. in Georgia in 2002 and since that time has spread to seven additional states. Laurel wilt has begun to slightly affect commercial avocado production in Florida.

(more …)

UF/IFAS program highly successful in keeping phosphorus out of the Everglades

Topic(s): Agriculture, Aquaculture, Conservation, Crops, Environment, IFAS, Livestock, RECs

Wide angle scenic of Everglades National Park near Homestead, Florida.  Parks and recreation, Florida, river of grass.  UF/IFAS Photo by Tyler Jones.

GAINESVILLE, Fla. — A 20-year plan to dramatically reduce phosphorus levels of agricultural water entering the Florida Everglades is working, thanks to proper implementation of best management practices by growers, training by the University of Florida’s Institute of Food and Agricultural Sciences, and cooperation with state and federal agencies.

“It is a partnership that has worked,” said Samira Daroub, a professor of soil and water science at the UF/IFAS Everglades Research and Education Center in Belle Glade. “It is one of the success stories in the area and also in the country.” (more …)

UF/IFAS Citrus Rootstock Selection Guide now online

Topic(s): Agriculture, Announcements, Citrus, Crops, Extension, IFAS, RECs, Research

ROOTSTOCK guide 071415

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GAINESVILLE, Fla. — The Florida Citrus Rootstock Selection Guide is now online at http://flrootstockselectionguide.org in a format that lets visitors interact with the guide.

Visitors to the site can find 104 publications supporting the ratings in the guide and can conduct queries of the rootstock information, said Stephen Futch, UF/IFAS multi-county Extension agent. The information and tools let you make informed citrus rootstock selections for your groves.

Three large buttons on the home page let you:

  • Open and interact with the Rootstock Selection Guide. It presents information on 45 rootstocks and 20 traits.
  • Open the Consult Guide, which introduces new technology to help you arrive at the best rootstock recommendations for your circumstances.
  • Open the Learn section, which contains a bibliography of references in an easy to use database with more than 100 published articles.

To access the website, go to www.crec.ifas.ufl.edu, then click on “Extension,” then “Horticulture,” then “Varieties and Rootstocks.”

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Caption: The Florida Citrus Rootstock Selection Guide, developed by UF/IFAS faculty members and Extension agents, is now online at http://flrootstockselectionguide.org in a format that lets visitors interact with the guide.

Credit: UF/IFAS file.

By: Brad Buck, 352-294-3303, bradbuck@ufl.edu

Source: Stephen Futch, 863-9546-8644, shf@ufl.edu

It’s a bug-eat-bug world out there for strawberry growers

Topic(s): Agriculture, Biocontrols, Crops, Economics, Entomology and Nematology, Environment, IFAS, Pests, RECs, Research

Berry bug control 081315

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GAINESVILLE, Fla. — A new University of Florida scientist is trying to find an insect that will eat the fly that’s damaging such fruit as strawberries and blueberries in the Sunshine State.

Such a finding would be critical in Florida, where the strawberry harvest brought in $267 million in 2013, according to the U.S. Department of Agriculture.

Justin Renkema, an assistant professor in entomology, recently developed tools to help determine whether he’s found a biological control for the Drosophila suzukii, commonly called the spotted wing drosophila.

Among other goals of the experiments, Renkema and his co-authors wanted to detect the DNA of spotted wing drosophila after it’s been eaten by a predatory rove beetle. This is a critical test to know whether one insect has eaten another, he said.

“The molecular tools we developed should be useful for testing whether other predators inhabiting fruit and berry fields consume spotted wing drosophila,” said Renkema, a new faculty member at the UF/IFAS Gulf Coast Research and Education Center in Balm.

(more …)

Farming conference slated for Aug. 15 in Jacksonville

Topic(s): Agriculture, Announcements, Crops, Economics, Extension, Families and Consumers, IFAS, Nutrition

 

2011 Small Farms Conference.  UF/IFAS Photo by Tyler Jones.

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GAINESVILLE, Fla. — The First Coast Specialty Crop Conference, created by UF/IFAS, comes to Jacksonville on Aug. 15, the first of five new regional conferences in 2015 and 2016 across the state.

The conference has evolved from an annual statewide event that began in 2009 in Kissimmee to more targeted, regional conferences across the state. A team of UF/IFAS Small Farms and Alternative Enterprises Extension agents and other stakeholders created the conference series, said Danielle Treadwell, a UF/IFAS associate professor in horticultural sciences.

Experts at the program at the Student Union Building of the University of North Florida will address concerns of Northeast Florida farmers, providing them with multiple learning and networking opportunities.

Whether you are interested in improving your farming skills by enhancing your soils and pest management, obtaining practical knowledge for postharvest practices, or diversifying your farm through cut-flower production, mushrooms or microgreens, this is a great place and time to learn.

“I’d like everyone that comes to walk away feeling that they have additional tools, skills that will benefit their farm,” said David Nistler, an agriculture, small farm and natural resources Extension agent for Clay County, who is part of the conference planning team.

The conference will also provide participants with marketing skills through a number of detailed skill sessions. Finally, in a small-group setting, there will be comprehensive, in-depth meetings created to provide attendees with skills like reading and interpreting soil tests as well as pest and disease identification.

Among the speakers will be UF/IFAS researchers and Extension personnel, agricultural industry experts and experienced farmers who, according to Nistler, bring a unique perspective about what they do.

“We’re very excited to see farmers who are excited and want to share with other people,” he said.

Check out the Conference Program and Register online at www.firstcoastconference.eventbrite.com. Early Bird registration is $45 if you register on or before July 28. Registration is $55 after this date. Your registration includes refreshments, lunch, and educational materials.

For more information about the conference, contact Jose Perez at 352-294-1692 or joseperezoro@ufl.edu.

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Caption: The First Coast Specialty Crop Conference, created by UF/IFAS, comes to Jacksonville on Aug. 15, the first of five new regional conferences in 2015 and 2016 across the state. The conference has evolved from an annual statewide event that began in 2009 in Kissimmee (see the photo above from the 2011 conference) to more targeted, regional conferences across the state.

Credit: UF/IFAS file photo.

By: Brad Buck, 352-294-3303, bradbuck@ufl.edu

Source: Jose Perez, 352-294-1692, joseperezoro@ufl.edu

 

UF/IFAS research finds ways to save water, strawberries and money during cold temps

Topic(s): Agriculture, Conservation, Crops, Economics, Environment, IFAS, Research, Weather

Organic strawberry e-book Javier L. - Jan28,2014 - Citra - Focus grup assessment - Open field (45)-X2

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GAINESVILLE, Fla. — Florida’s strawberry producers must protect their multimillion-dollar annual crop from freeze damage. Traditional methods involve constant spraying of water during a cold snap. Growers are looking for ways to use less water, yet produce the same amount of crop.

New University of Florida research shows growers can keep using both their current sprinkler spacing and low pressure or enhanced real-time irrigation control to save water – and they can produce the same strawberry crop yield during mild freezes.

“It’s a step in the right direction,” said Michael Dukes, a UF/IFAS professor of agricultural and biological engineering and the lead author on the study. The improvement? An automated control treatment that used real-time dew point measurements – rather than temperatures — to turn the system on and off, he said.

(more …)

UF/IFAS researchers use pigs to root out problem weeds

Topic(s): Agriculture, Crops, Environment, Green Living, IFAS, Livestock, Research, Vegetables
Professor of Agronomy and Weed Science Greg MacDonald with his pigs.

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CITRA, Fla. — Sometimes, the old-fashioned ways are the best ways.

Back before chemical pesticides and herbicides, farmers had to come up with ways to kill the weeds that took over their fields. One method used “back in the day” was letting pigs loose in fields that were not being used for crops for a season and allowing the pigs to do what they do naturally: dig up the roots of weeds and  fertilize the land.

In the last year, Greg MacDonald, a weed science researcher with the University of Florida’s Institute of Food and Agricultural Sciences, decided to give the method a try to combat nutsedge, a weed that looks like grass and is so resilient it can sprout up through plastic row-crop coverings and even the plastic lining of above-ground pools. (more …)

Specialty Crop Conference slated for Aug. 15 in Jacksonville

Topic(s): Agriculture, Announcements, Crops, Economics, Extension, IFAS

2011 Small Farms Conference.  UF/IFAS Photo by Tyler Jones.

Please see caption below

GAINESVILLE, Fla. — The First Coast Specialty Crop Conference, created by UF/IFAS, comes to Jacksonville on Aug. 15, the first of five new regional conferences in 2015 and 2016 across the state.

The conference has evolved from an annual statewide event that began in 2009 in Kissimmee to more targeted, regional conferences across the state. A team of UF/IFAS Small Farms and Alternative Enterprises Extension agents and other stakeholders created the conference series, said Danielle Treadwell, a UF/IFAS associate professor in horticultural sciences.

Experts at the program at the Student Union Building of the University of North Florida will address concerns of Northeast Florida farmers, providing them with multiple learning and networking opportunities.

Whether you are interested in improving your farming skills by enhancing your soils and pest management, obtaining practical knowledge for postharvest practices, or diversifying your farm through cut-flower production, mushrooms or microgreens, this is a great place and time to learn.

(more …)

Shining a red light to slow downy mildew on basil

Topic(s): Agriculture, Crops, Economics, IFAS, RECs, Research

Basil Downy Mildew symptoms 072115

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GAINESVILLE, Fla. — Basil can add a little zest to any meal. But downy mildew disease threatens the herb’s very existence.

University of Florida Institute of Food and Agricultural Sciences researchers are trying to manage the disease with little or no spraying.

For his latest experiments, Shouan Zhang, a UF/IFAS plant pathology associate professor at the Tropical Research and Education Center in Homestead, inoculated basil plants with the downy mildew pathogen. The scientist then put the plants under red lights in a greenhouse and found the process is slowing down the disease’s growth.

Jaimin Patel, a postdoctoral research associate for Zhang, said they put one set of plants on a bench in the dark for 12 hours, starting at 8 p.m. each day. Another set of plants was placed under red lights for the same time period. The downy mildew appeared on plants in the dark six days after inoculation, while no symptoms showed up on the plants that were under the red lights, Patel said. They repeated the experiment and found the disease symptoms five days after inoculation on the plants placed in the dark – and still, little to no symptoms of the downy mildew was found on the basil plants exposed to the red lights.

(more …)

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