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IFAS News

University of Florida

UF/IFAS scientists zero in on Brown Dog Tick control

Topic(s): Entomology and Nematology, Environment, Extension, Families and Consumers, Household Pests, IFAS, Pests, Research

A petri dish contains several brown dog ticks, a species researchers believe has become resistant to the most commonly used pesticides.  UF/IFAS Photo by Tyler Jones.

Brown Dog Ticks

click here for video: http://bit.ly/1PujWam

GAINESVILLE, Fla. – A little pest can really tick off dogs and their owners.

In addition to homeowners and canines, the pesticide industry has also been trying to find a way to vanquish the Brown Dog Tick for years.

But help is on the way, courtesy of University of Florida scientists.

Dogs and their owners who battle the Brown Dog Tick sometimes go to desperate measures ─ including getting rid of their dogs, fumigating their homes, throwing many possessions out or even moving ─ to control the pesky bugs, which breed indoors and hide in places that are practically impossible to reach.

Phil Kaufman, an associate professor of veterinary entomology at UF/IFAS, is one of several investigators who have just published two studies. One shows the tick is resistant to the most commonly used chemical applied directly between the dog’s shoulder blades. The other shows the effectiveness of carbon dioxide as a lure for baiting ticks to bed bug traps.

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Citizen science projects invite Florida residents to get involved

Topic(s): Agriculture, Entomology and Nematology, Environment, Families and Consumers, Household Pests, IFAS, Invasive Species, Pests

GAINESVILLE, Fla. — Have you always wanted to see what real, college-level, science research projects are like – and maybe even participate in one? Now is your chance with the University of Florida’s Institute of Food and Agricultural Sciences’ annual Bug Week.

Citizen science projects are a great way for kids of any age to help researchers in Florida – and throughout the country – understand what is taking place in their own neighborhoods. The projects can involve bug or animal counts, capturing specimens or creating habitats and reporting what shows up.

“Citizen science is a win-win for everyone involved,” said Andrea Lucky, an evolutionary biologist and biodiversity scientist with UF’s Department of Entomology and Nematology. “Participants have the opportunity to get involved in ongoing research and learn about the process of science and, at the same time, scientists benefit from partnering with diverse audiences.” (more …)

How teachers and parents can help budding bug enthusiasts

Topic(s): Agriculture, Entomology and Nematology, IFAS

A green grasshopper resembling a leaf standing on pavement.  Insects and bugs.  UF/IFAS Photo: Tyler Jones.

GAINESVILLE, Fla. — Do you know kids who can’t get enough of spiders, crickets and lightning bugs? Do they keep creepy-crawly things in glass jars in their bedroom?

They might just want to grow up to be an entomologist, a fancy word for a person who studies insects. The University of Florida’s Institute of Food and Agricultural Sciences is here to help your budding bug enthusiast follow their passion with a host of activities featured during Bug Week 2015, taking place May 18-23. (more …)

UF/IFAS termite pioneer selected for inventors hall of fame

Topic(s): Agriculture, Announcements, Entomology and Nematology, Honors and Appointments, IFAS, Pests, RECs, Research

TERMITES2 Nan-Yao Su 022415

Nan-Yao Su

GAINESVILLE, Fla. — Nan-Yao Su, the University of Florida scientist who invented the Sentricon® system for termite colony elimination, has been selected for induction into the Florida Inventors Hall of Fame.

Sentricon®, the first commercial baiting product for subterranean termites, has protected millions of structures, including the White House and the Statue of Liberty.

The Hall of Fame selection committee chose nominees whose inventions and achievements have “advanced the quality of life for Floridians, our state and our nation,” according to a letter to Su from hall of fame Program Manager William Nikolic.

Su said he feels honored to be mentioned alongside such great inventors as Thomas Edison and UF’s own Robert Cade, who invented Gatorade®.

“I am glad that I can contribute to the quality of life of many homeowners in Florida and worldwide,” Su said.

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UF/IFAS grad student wins prize for mosquito trap research

Topic(s): Announcements, CALS, Entomology and Nematology, IFAS, Pests, Research

Casey Parker Environmental Portrait Mosquito Housing

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GAINESVILLE, Fla. — Casey Parker came to the University of Florida aspiring to be a pharmacist. But chemistry wasn’t for her. So, she took a class called “Bugs and People,” and the professor at the time, Carl Barfield, convinced her to study entomology.

“I loved everything about it,” Parker said of studying insects. “It’s something people don’t think about very much. They’re around, but we don’t think, ‘they do so many crazy things in our world.’ They transmit tons of diseases that affect humans and animals.”

Parker did so well academically that she graduated last year and continued her master’s studies at the UF Institute of Food and Agricultural Sciences Department of Entomology and Nematology. The graduate entomology student recently won the ONE WORLD competition, organized by the UF College of Agricultural and Life Sciences Challenge 2050 Project in conjunction with the Syngenta Good Growth Plan. She was awarded $2,000 for her work.

“I was really honored,” Parker said, adding that she felt humbled to be among the other five student finalists – dubbed “The Solution 6” — all of whom created outstanding innovations.

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Eighth annual UF Bee College event returns March 6-7

Topic(s): Agriculture, Crops, Entomology and Nematology, Environment, Families and Consumers

A bee on a sunflower.  Helianthus annuus, annuals, honey bees, insects, pollination.  UF/IFAS Photo: Tyler Jones.

GAINESVILLE, Fla. — Florida’s sweetest event for all things honey bee is set for March 6-7, University of Florida officials announced this week.

The University of Florida’s Honey Bee Research and Extension Laboratory has organized and hosted the UF Bee College since 2008 for hobbyists, professionals and anyone interested in maintaining a healthy honey bee population. The event will be held at the UF Whitney Marine Laboratory in Marineland, Fla. (more …)

UF/IFAS expert to help Australians try to control diseases transmitted by invasive mosquitoes

Topic(s): Entomology and Nematology, Environment, Pests

LOUNIBOS 020915

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GAINESVILLE, Fla. – A University of Florida scientist recognized as a global expert on invasive mosquitoes will head to Australia in March to work with researchers to combat public health threats common to Florida and Queensland, Australia, such as chikungunya and dengue fever.

Phil Lounibos, an entomology professor at UF/IFAS’ Florida Medical Entomology Laboratory in Vero Beach, has been awarded a Fulbright Specialist grant to give a series of lectures and to host seminars Down Under.

The mosquitoes that transmit chikungunya and dengue fever to humans are Aedes aegypti – sometimes referred to as the yellow fever mosquito ─ and Aedes albopictussometimes called the Asian tiger mosquito. Aedes aegypti, native to Africa, has lived in eastern Australia for more than 150 years, after arriving on sailing vessels, but is becoming less of a public health threat in parts of Queensland thanks to a novel experimental control method.

Aedes albopictus successfully colonized Florida more than 30 years ago but has not yet established itself in mainland Australia. Lounibos, a leading expert on the ecology of these two mosquito species, will bring his research-based knowledge, which has helped explain how the Asian tiger reduced the range and abundance of the yellow fever mosquito in Florida.

“We hope collaboration and knowledge from studying interactions between these species in Florida will help Australian scientists limit consequences from a feared invasion by the Asian Tiger Mosquito from the Torres Strait,” he said. The Torres Strait lies between mainland Australia and New Guinea.

The program will also benefit Florida, where several mosquito control districts are considering releasing genetically modified yellow fever mosquitoes for dengue prevention. The Eliminate Dengue Program, based in Cairns, Australia, is pioneering a non-GMO genetic control technique that causes mosquitoes of this species to become dengue-resistant by mating with released mosquitoes infected with Wolbachia, a type of bacteria.

Because of their extensive coastlines ─ which makes both areas vulnerable to the arrival of exotic animals and plants on boats and ships ─ Florida and Queensland, Australia are threatened by many invasive species, including the two mosquito species that transmit dengue and chikungunya.

In the past few years, the lay public and scientists have shifted their interest in mosquito ecology from salt marsh mosquitoes ─ major pests of the densely populated coasts of both regions ─ to invasive mosquito vectors of arboviruses, such as dengue and chikungunya.

Outbreaks of dengue fever occur regularly in northern Queensland and occasionally in South Florida, and the establishment of chikungunya in the Caribbean in late 2013 led to at least 10 cases of local transmission of this virus n Florida in 2014, Lounibos said.

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Cutline: UF/IFAS entomology professor Phil Lounibos checks for larvae of the invasive Aedes albopictus in water-holding tires used for surveillance on the grounds of the Florida Medical Entomology Laboratory in Vero Beach.

Credit: UF/IFAS file photo by Marisol Amador

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

Source: Phil Lounibos, 772-778-7200, ext. 146, lounibos@ufl.edu

New UF/IFAS entomology chair coming from Nebraska

Topic(s): Announcements, Entomology and Nematology, IFAS

Honors Convocation Teachers Awards

Siegfried

GAINESVILLE, Fla. – An internationally renowned insect scientist with expertise in safe and sustainable pest management has been appointed to lead the UF/IFAS Department of Entomology and Nematology.

Blair Siegfried, a professor of entomology at the University of Nebraska-Lincoln, will start at UF/IFAS on Sept. 1. He said his interest in the UF/IFAS position is based on an interest in pursuing new challenges and opportunities.

“I am extremely excited by the opportunity to work with an outstanding group of scientists and personnel from the entomology and nematology department and to build relationships with other units from the Institute of Food and Agricultural Sciences and broader campus,” Siegfried said.

Jack Payne, UF senior vice president of agriculture and natural resources, said Siegfried provides the background necessary to lead the UF/IFAS entomology program to new heights.

“People in Florida and, indeed around the world, need pest-control solutions as they impact homeowners and all aspects of agriculture and the environment,” Payne said. “Dr. Siegfried is well-positioned to steer UF/IFAS educational, research and Extension programs to help solve global entomological issues.”

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UF/IFAS citizen science project abuzz over bees, wasps

Topic(s): Entomology and Nematology, IFAS, Research

bees wasps citizen science1 120414

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GAINESVILLE, Fla. – Citizen scientists around the world are busy as bees for a University of Florida study.

A global movement called “citizen science” is gaining traction, as scientists give lay people protocols so they can collect valid data.

In this case, participants build and monitor artificial nesting habitats suitable for solitary bees and wasps. Many bees and wasps live in social colonies. Solitary ones keep to themselves and nest in tunnels.

Among methods used to build homes for the bees and wasps, participants drilled holes in wood, rock, cement or clay while others provided bamboo stems or other hollow tubes.

Institute of Food and Agricultural Sciences researchers used social media and websites to enroll and train citizen scientists for the project. Between April 2012 and July 2014, 655 people from 30 Florida counties, 39 states and 11 countries, including the U.S., Canada, Spain and Switzerland, registered for the Native Buzz project at www.ufnativebuzz.com to participate in the project.

During the first two years of the study, residents built 10,657 potential nests from various materials. Participants monitored their nest sites weekly to see if bees and wasps established nests in the available materials.

Results showed citizen scientists can build and monitor artificial nesting habitats for bees and wasps, a process that helps entomologists collect bee and wasp nesting data from a large geographic range.

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UF/IFAS mosquito-feeding study may help stem dangerous viruses

Topic(s): Entomology and Nematology, RECs, Research, Safety

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GAINESVILLE, Fla. — Mosquitoes bite male birds nearly twice as often as they bite females, a finding that may help scientists understand how to stem some viruses from spreading to humans, new University of Florida research shows.

In findings published online today in Royal Society Open Science, UF entomology assistant professor Nathan Burkett-Cadena found mosquitoes bite male birds 64 percent of the time, compared to 36 percent for females.

This marks the first step for scientists to try to determine why mosquitoes bite men more often than women in some parts of the world and vice versa in other areas, said Burkett-Cadena, who is based at the Florida Medical Entomology Laboratory in Vero Beach.

“Understanding why mosquitoes bite males more often than females may lead to novel strategies for interrupting disease transmission,” said Burkett-Cadena, an Institute of Food and Agricultural Sciences faculty member.

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