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 […]

Emerald Ash Borer Confirmed as Threat to White Fringetree


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


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 […]

Emerald Ash Borer May Have Spread to Different Tree


The emerald ash borer, which is destroying ash trees in a large swath of the nation, has apparently spread to a different tree, according to a researcher at Wright State University. Professor Don Cipollini has found that the invasive green beetle has apparently begun to attack white fringetree (Chionanthus virginicus). White fringetree is native to […]

Peeking at the Playbook of Asian Trees May Help Stop the Emerald Ash Borer


By David Showalter In just the last decade, the emerald ash borer (EAB) has killed tens of millions of ash trees in North America and is a growing threat to European ash. However, Asian ash species are not affected by the EAB. As a part of an effort to save the multi-billion dollar ash resources, […]

Emerald Ash Borer Mothers Know Best


The “mother knows best” hypothesis states that adults should choose hosts for oviposition on which their offspring will best perform, maximizing their own fitness. In other words, mothers will lay eggs in places where there’s good food for their children. It has been hypothesized that this is especially important for wood-boring insects because the larvae […]

Falling Temperatures Do Not Necessarily Mean Fewer Insects


By Richard Levine With record-breaking cold temperatures in much of the United States recently, newspaper headlines have suggested that the freezing weather this winter could mean fewer insects next spring. For example: – The New York Times: “Celebrating Deep Freeze, Insect Experts See a Chance to Kill Off Invasive Species” – National Public Radio: “The […]