How Fast Does Emerald Ash Borer Kill Trees in Our Forests?

Ash forest affected by emerald ash borer

By Laurel Haavik Agrilus planipennis Fairmaire, a shiny green beetle from Asia commonly known as the emerald ash borer (EAB), has taken North America by storm. Assisted mostly by people, but also by its own wings, EAB is rapidly spreading across urban and forested areas alike. EAB-killed ash trees in urban areas are noticeable and […]

Emerald Ash Borer May Become a Problem for Olive Growers

agrilus-planipennis-larvae

In October 2014, researchers at Wright State University discovered that an invasive insect called the emerald ash borer (EAB) was attacking white fringetrees (Chionanthus virginicus) in addition to ash trees. This was big news at the time. The EAB had already killed tens of millions of ash trees, and the fact that it could harm […]

Ash and Emerald Ash Borer: How Do Trees Defend Themselves from a Deadly Beetle?

eab-laurel

Editor’s note: This is the first installment in the “Behind the Science” series by Laurel Haavik that peeks into the lives of scientists. See other posts in the series. By Laurel Haavik You have probably heard about a tiny green beetle from Asia that is blazing across North America, leaving millions of ash trees in […]

USDA to Release Russian Wasps Against the Emerald Ash Borer

Spathius-galinae

With the emerald ash borer beetle devastating ash tree populations throughout the United States, solutions to help fight the insect are critical. Thanks in part to research from the University of Delaware and the USDA’s Agricultural Research Service, a host-specific parasitoid wasp from Russia — Spathius galinae — has been approved for release to help […]

A New Parasitoid Wasp from Russia May Help the Fight Against Emerald Ash Borer

OLYMPUS DIGITAL CAMERA

By Ed Ricciuti Scientists working on environmentally friendly ways to combat insect pests continually quest for biological control’s version of a better mousetrap: natural enemies of a harmful species that outperform those already employed against it. In the case of invasive pests, the hunt may take scientists far afield, even to remote corners of the […]

Here’s How to Inspect Your Trees for Emerald Ash Borer

emerald-ash-borer-wp

By Anand Persad, PhD Urban treescapes are under attack. Seven billion ash trees, the dominant species of urban American canopies, are at risk of being destroyed by the invasive emerald ash borer (EAB) if not treated. Since its first detection in Michigan in 2002, EAB has spread to 25 states and killed more than 50 […]

Emerald Ash Borer Infestation of White Fringetree Found to be Widespread

Agrilus-planipennis

The emerald ash borer (Agrilus planipennis) is an invasive pest that is decimating ash trees across the United States and Canada. By 2019, it’s estimated that the beetle will have caused economic damage to the tune of $10 billion. While originally thought to be a pest of ash trees exclusively, a researcher from Wright State […]

Predatory Wasps and Citizen Scientists are Taking on the Emerald Ash Borer

Cerceris-fumipennis

By Kevin Fitzgerald The emerald ash borer (Agrilus planipennis) is a pest species that has killed tens of millions of ash trees and has the potential to kill most of the 8.7 billion ash trees in North America. The beetle, native to Asia, was accidentally introduced to the U.S. in 2002 in Michigan. Since then, […]

Emerald Ash Borer Confirmed as Threat to White Fringetree

EAB-WP2

The emerald ash borer (Agrilus planipennis), also known as EAB, is an invasive insect pest from Asia that has killed millions of trees in the United States and Canada and has caused billions of dollars of damage since it was discovered in 2002. Fortunately, its damage has been limited to ash trees — or so […]

Native Wasps Look Promising as EAB Biocontrol Agents in Kentucky

waspet

Entomology researchers in the University of Kentucky College of Agriculture, Food and Environment have received encouraging results in their fight to protect Kentucky ash trees from the emerald ash borer (EAB), an exotic wood-boring invader that kills ash trees. During the past two growing seasons, UK forest entomologist Lynne Rieske-Kinney, her lab members, and personnel […]