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

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?

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

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

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 […]