plants

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.

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.

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.”

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.

In addition to the existing science-based eradication protocols for fighting an Asian longhorned beetle (ALB) infestation, such as surveying trees and removing infested ones, the USDA’s Animal and Plant Health Inspection Service (APHIS) relies on on-going research to not only improve current protocols, but also to develop new ones.

APHIS’s Center for Plant Health Science and Technology continues research to develop attractant-baited traps designed to lure and capture adult insects. The attractants include plant odors and pheromones, which are naturally occurring chemicals created and used by insects to communicate with each other.  These attractants are used to lure beetles to traps that are hung on trees that the beetle will attack.  Traps can aid in early detection of insects in areas where survey staff may not be working. When the traps are checked by staff members and a beetle is found, nearby trees may be surveyed to determine if they are infested. This year, the traps will be placed in the spring and early summer in strategic locations in all three ALB-affected states: New York, Massachusetts, and Ohio.  APHIS is also working with the U.S. Forest Service and Penn State University on their research with similar ALB traps.

Wild boar, razorback, feral hog, wild pig — these are just some of the names we attribute to one of the most destructive and formidable invasive species in the United States. Feral swine adapt to just about any habitat, have few natural enemies, and reproduce at high rates. As such, their population is growing rapidly nationwide. At 5 million animals and counting, feral swine are now found in at least 39 States and cause approximately $1.5 billion in damages and control costs each year. Their damage is diverse and includes destroying native habitats and crops, eating endangered species, and spreading disease. Natural resource managers, researchers and academics nationwide are grappling with how best to address the challenges of feral swine management.

Feral swine are hunted by the public in some States for recreational purposes; but hunting will not solve our country’s feral swine problems.

Big, creepy, and horned, the coconut rhinoceros beetle (CRB) loves to feed on—and kill—coconut and other palms, banana plants, and more.  This invasive species, detected in Hawaii in December 2013, makes the perfect poster child for USDA’s Invasive Plant Pest and Disease Awareness Month—a child only its mother could love.

How did it get here? And how can we prevent the spread of damaging, invasive species like this unwanted, oversized beetle?  These are great questions to consider as USDA kicks off Invasive Plant Pest and Disease Awareness Month.  Throughout April, we’re raising public awareness about the threat of invasive species and informing people how to prevent their spread—so we’ll face fewer surprises like the CRB.

Seeing a short-eared owl in November on the Pittsburgh International Airport, where I work as an airport wildlife biologist, was a unique occasion. However, as the number of owls grew to eight, I recognized the challenge ahead:  Like all birds of prey, short-eared owls are a recognized potential aviation hazard. Their low rolling flight and difficult-to-disperse reputation means they pose an aviation safety threat.  From 1990-2012, short-eared owl strikes with aircraft in the United States caused over $1 million in damage, and often are fatal to the birds.  Convincing them to leave would be difficult but important.

The task would be harder because short-eared owls are listed by the State as an endangered species.  Common in many areas globally, Pennsylvania is the southernmost edge of their breeding range.  These owls likely migrated from Canadian breeding grounds to winter in Pennsylvania.

Helping American Indians develop profitable farming and ranching businesses, engaging tribal youth in 4-H, enhancing natural resources on reservations, and reaching out to tribal communities about topics that are of interest to them are just some of the activities supported by the Federally-Recognized Tribes Extension Program (FRTEP). FRTEP is administered by USDA's National Institute of Food and Agriculture and conducts education programs on Indian reservations and Tribal jurisdictions through partnerships with the 1862 Land-Grant institutions. FRTEP extension agents serve as liaisons between the Tribes and USDA programs and services. The purpose of the FRTEP program is to support extension agents who establish extension education programs on the Indian Reservations and Tribal jurisdictions of Federally-Recognized Tribes. Program priorities reflect the following areas: 1) Development of sustainable energy; 2) Increased global food security; 3) Adaptation /mitigation of agriculture and natural resources to global climate change; 4) Reduction of childhood and adolescent obesity; and 5) Improved food safety.

Later this month, FRTEP agents will meet in Fort Collins, Colorado, to receive an overview of USDA’s Animal and Plant Health Inspection Service (APHIS), its programs, and expertise.  APHIS is a multi-faceted Agency that is responsible for protecting U.S. animal and plant health, and animal welfare.

Out with the snake, in with horse! January 31 marks the start of the Chinese New Year. Many people will be enjoying the rich cultural traditions of this holiday such as food, parades and exchanging gifts. One traditional Chinese New Year gift is citrus fruit, such as mandarin oranges and tangerines. This fruit is said to bring luck, wealth and prosperity.

However, without proper precautions citrus can also bring something else that may not be so favorable—the Asian citrus psyllid. This pest carries citrus greening disease, also known as Huanglongbing (HLB), a disease threatening the commercial citrus industry and homegrown citrus trees alike. Although it is not harmful to humans or animals, the disease is fatal for citrus trees and has no known cure.