A gypsy moth caterpillar on a leaf in Massachusetts
While being outside in Massachusetts this June, I first noticed it. A lot of leaves were falling from the trees, only these were chewed leaf parts, not whole leaves.
Similar to the children’s book, The Very Hungry Caterpillar written by Eric Carle, some leaves didn’t just have chew marks but actual holes going straight through them. Unlike the children’s book, this damage isn’t being caused by a friendly caterpillar who turns into a butterfly. Instead it’s the result of ravenous gypsy moth caterpillars feeding…and feeding. It’s so bad that in some areas, on walkways and roadways, it looks like fall. Brown, dried up leaves are a contrast to summer’s lush greenery. Read more »
The streamlined design of Oobinator 2.0 improved the distribution of the wasps—each Oobinator containes 50 wasps that could be positioned at four distinct locations throughout the field site. Stingless wasps disperse in the field to search for EAB eggs that will serve as a host for its offspring.
Emerald ash borer (EAB) beetle is an invasive wood boring beetle, first detected in July 2002 in southeastern Michigan. The pest attacks and kills ash trees and it is responsible for the death and decline of tens of millions of ash in 25 states. EAB lives under the bark and when people move EAB-infested firewood they unknowingly move the pest. During EAB Awareness Week (May 22-28) leave HungryPests behind and don’t move firewood.
Do you remember the eighties television show MacGyver? Science genius turns secret agent. Each week Angus MacGyver—armed with only a pen, aerosol spray can and a Swiss Army knife—successfully disarms the bomb and saves the day! The following week, it’s a shoe horn, jumper cables and a screwdriver…then a thermos, belt buckle….you get the drift. Sixty minutes of ingenious, nail-biting problem-solving.
Although the show’s final episode aired almost 25 years ago, the spirit of Angus lives on at the USDA’s Emerald Ash Borer (EAB) biological control production facility, where USDA is strategically rearing natural enemies to combat this destructive pest. Mass rearing biocontrol agents (stingless wasps) is a delicate process that’s time-sensitive, labor-intensive, and laden with problem-solving opportunities. Read more »
Photo credit: Mark Trail via @ComicsKingdom
Emerald Ash Borer (EAB) Awareness week is May 17-23 and my tenure in a nationally syndicated comic strip is coming to an end, so it’s a good time to tell you how a new USDA employee wound up cartoon-ized.
The Mark Trail strip—known for its environmental themes—just finished a six-week long storyline about the invasive EAB. The EAB, a small metallic green wood-boring beetle, destroys ash trees and is now found in 25 U.S. States. The Mark Trail strip features “Agent Abbey Powell from the USDA” and shares information about the EAB. To view the comic—beginning with my debut—visit Mark Trail. Read more »
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 »
At the APHIS Otis Lab in Massachusetts, employees conduct research for several APHIS forest pest emergency response and eradication programs, including Asian longhorned beetle (ALB), Asian gypsy moth (AGM), emerald ash borer (EAB), and Sirex noctilio woodwasp.
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. Read more »