Photo of S. galinae by Jian Duan, Research Entomologist, USDA ARS Beneficial Insects Introduction Research Unit
May 18-24, 2014 is Emerald Ash Borer Awareness Week
In our efforts to preserve and protect American ash trees from the damaging and invasive emerald ash borer (EAB) beetle, APHIS is working diligently to find and implement solutions that have the potential to successfully conserve this beautiful natural resource. Spathius galinae (S. galinae) just could be that newest weapon in the arsenal.
The tiny stingless wasp, about the size of a typical mosquito, targets and attacks EAB larvae living under the bark of ash trees. Crawling along the bark ridges and furrows, S. galinae somehow senses EAB larvae hidden below. The wasp not only accurately locates its target, but also is able to determine relative size—showing preference for large EAB larvae. Once a suitable larva is detected, the female wasp uses its long egg-laying organ (ovipositor) like a hydraulic drill to bore down through the layers of bark and deposit between 5 and 15 eggs on its host. After the eggs hatch, the wasp offspring feed on the EAB larva, eventually killing it. A new generation of S. galinae emerges in about 35 days. Read more »
Retiring APHIS State Plant Health Director for Massachusetts, Connecticut and Rhode Island Patty Douglass inspects ALB damaged wood in Massachusetts.
One of the things I consider a highlight of my career and that I will always remember is our successful response to the July 2010 detection of the Asian longhorned beetle (ALB) in Boston, Massachusetts. As I attended the May 12 ceremony commemorating the eradication of the ALB infestation in Boston and listened to the speakers share their thoughts about what it took to get us there, I had a deep sense of appreciation for the partnership among the state and federal cooperators who worked together to bring us to that day. It was swift action and continued diligence that protected Boston’s trees from further destruction.
APHIS and its cooperators were able to accomplish the goal of eradicating ALB in Boston in less than 4 years. Thanks also go to a community member who reported the infestation early. That early detection and report resulted in the loss of only 6 infested trees.
But as I celebrate our first victory over the invasive pest in Massachusetts, I am compelled to ask you to remain vigilant in inspecting your trees regularly for signs of the beetle and report any suspicious damage to your State Plant Health Director. Read more »
In northern Florida wildflowers are planted in an unused part of this farm field to provide habitat for pollinators. USDA photo.
No matter what part of the country you grew up in, most of us have fond childhood memories of the wildflowers that sprung up each year around our homes, parks and roadsides.
For many, this fondness has carried into our adult years. This week, we celebrate National Wildflower Week as a way to share our interest and to increase public awareness for wildflowers in the landscape.
The beauty of wildflowers can indeed stir up memories of a certain place or time. But the wildflowers that are native to a particular place also serve an important function in the ecology of that place. Read more »
Sonny Ramaswamy, director of NIFA, has fun with Madagascar hissing cockroaches.
This post is part of the Science Tuesday feature series on the USDA blog. Check back each week as we showcase stories and news from the USDA’s rich science and research portfolio.
When you think of agriculture do you think of science and engineering? You should! Farmers are some of our original scientists, tinkering with plant varieties and farming techniques to find ways to reliably grow food. At USDA, we still do that kind of research in a never-ending effort to find better ways to produce food, fuel, and fiber. We also do a lot of research you might not think of when you think about agriculture: from forensic genetic analysis to track down unwanted pests to figuring out how to turn spent grain from distilleries into biodegradable kitty litter.
On April 26-27, the 3rd Annual USA Science and Engineering Festival took over the Walter E. Washington Convention Center in Washington, D.C. Over 325,000 people came out to celebrate discovery and innovation through over 3,000 hands-on activities and 150 performances and lectures. USDA pulled all of the stops to show our geeky side and hopefully convince a few young booth visitors to consider agriculture when they think about careers in science. Read more »
Can you find the snake? A Burmese python peeks out from its hiding place in Florida. APHIS Wildlife Services experts are developing new tools to help track and remove this invasive species. Photo by Lori Oberhofer, National Park Service
How do you find something that doesn’t want to be found – something that has evolved to be cryptic, elusive, and stealthy? That is the question asked of APHIS geneticist Dr. Antoinette Piaggio. She and others at the National Wildlife Research Center (NWRC) – the research arm of the APHIS Wildlife Services program – are investigating new ways to track and locate invasive Burmese pythons.
Burmese pythons have made a home in Florida competing with and feeding on native wildlife. Experts agree that new tools and techniques are crucial to monitoring and controlling the spread of this elusive snake.
“Burmese pythons are semi-aquatic and can be very hard to detect given their elusive nature and cryptic coloration,” states Piaggio. “We’ve developed a new detection method that uses environmental DNA, thereby eliminating the need for seeing or handling snakes.” Read more »
A captive horned lark is offered lettuce seedlings treated with a bird repellent. Photo by USDA Wildlife Services
California is the “bread basket” of American agriculture. In 2012, California’s 80,500 farms and ranches produced a record $44.7 billion in produce, dairy, and meats. With more than 400 crop varieties grown in the State, California produces nearly half of all U.S. grown fruits, nuts and vegetables.
To help ensure this basket stays full, the California Department of Food and Agriculture (CDFA) partners with APHIS Wildlife Services (WS) to address wildlife damage issues to agriculture. Some of the more recent work involves the development of repellents to protect crops from birds. Read more »