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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.

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Book examines the use of predatory mites for biological control

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

Biological Control Book editors 081315Biological Control Book 081315

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GAINESVILLE, Fla. — Biological control of pests, weeds, plants and animals gives “the best hope to providing lasting, environmentally sound and socially acceptable pest management,” according to a new book edited by two UF/IFAS scientists.

The book, “Prospects for Biological Control of Plant Feeding Mites and Other Harmful Organisms,” was recently published by Springer Science. It includes chapters by scientists in California, Kenya, Benin, Brazil, Colombia, Greece, Spain and New Zealand.

Research compiled in the book examines how predatory mites can be used to control other plant-eating mites and other harmful organisms such as stable flies, mushrooms flies and some soil pests, said Daniel Carrillo, a UF/IFAS assistant professor in entomology. The book serves as an important resource for anyone searching for efficient and sustainable biological methods of pest control. Biological control is vital because pests become more difficult to control as they build resistance to pesticides.

“So, biological control is a sound alternative,” Carrillo said. “You can release predatory mites to control spider mites, whiteflies and thrips, among other pests. People use them in greenhouses mostly.”

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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.

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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 expert urges returning college students to read, know their lease

Topic(s): Economics, Extension, Families and Consumers, Finances, IFAS

Michael S. Gutter, Ph.D., Assistant Professor, Family Youth and Community Sciences.  UF/IFAS Photo.

Michael Gutter

For more information, check out this video: http://bit.ly/1STpVY0

GAINESVILLE, Fla. — As thousands of college students across America return to school for the fall, a UF/IFAS financial expert has quick, simple advice: Read the apartment lease.

To some, reviewing the lease may seem obvious; to others, it may seem onerous. But it’s time well spent, said Michael Gutter, an associate professor of family financial management and associate dean of Extension at UF/IFAS.

Most students won’t understand the legal language of a lease, but if they read it, they’ll know whether they’re responsible for cleaning the carpet and the kitchen, for example, Gutter said. They’ll also find out major points, including the conditions under which a deposit is refundable.

Also, keep in mind that whoever signs the lease must pay the rent, Gutter said. Sometimes, at least one parent or legal guardian may have to co-sign the lease to ensure the rent is paid. That’s because some college students have little to no credit.

“Like any business owner, landlords want to make sure that they’re going to get paid,” Gutter said. “The co-signer is very much the back-up plan. If the tenant fails to make the payments on time, they may contact the co-signer for payment. There’s a true commitment; it’s not just a moral backing.”

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Downy mildew confirmed on popular purple velvet plants

Topic(s): Agriculture, Economics, Environment, Families and Consumers, IFAS, RECs, Research

Purple velvet 080515

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GAINESVILLE, Fla. — Downy mildew, a disease known to damage dozens of plant species in Florida, has now been found on purple velvet plants in South Florida, UF/IFAS scientists say.

Purple velvet plants are popularly used for foliage and cut flowers, said Aaron Palmateer, associate professor in plant pathology at the UF/IFAS Tropical Research and Education Center in Homestead.

“The upside to reporting any disease, especially aggressive diseases like downy mildew, is to get the word out,” said Palmateer, who co-authored a paper on the finding that appears online in the journal Plant Disease. “This allows growers to take preventive action and to start applying fungicides labeled for downy mildew before a disease outbreak, which is the ideal approach for disease management.

“The downside is the added expense of applying additional fungicides to control the downy mildew,” he said. “This is a disease that can kill the plant, so it’s a definite game-changer.”

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UF/IFAS study sheds light on how willing we are to adjust our energy bills

Topic(s): Economics, Environment, Families and Consumers, Finances, Green Living, IFAS, Research, Weather

Energy upgrades 080415

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GAINESVILLE, Fla. — All it takes is six questions. You answer those, and University of Florida researchers say contractors will know how willing you are to upgrade your home for energy efficiency and whether you can afford the improvements.

Heating and cooling make up 54 percent of American households’ utility bills, a primary concern for Randy Cantrell, a UF/IFAS assistant professor and Extension specialist in housing and community development. For some people, their monthly energy bill comes as sticker shock. But we all react differently when we open the envelope, and Cantrell calls that response “botheredness.”

Cantrell wanted to know two things: how bothered people are by their energy bill and whether they can afford to do something about it. So he and Brad Sewell, a graduate research assistant, used a web-based survey of about 1,000 American homeowners to divide them into groups based on utility bill botheredness and budgetary constraints for household upgrades.

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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.

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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

User comments

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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.

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