Invasive Species

Insect data from OSU research helps assess habitat quality for sage-grouse

The invasive annual grassy weed cheatgrass increases the threat of wildfire in greater sage-grouse habitat that spans much of eastern Oregon. Insect populations that are the foundation of early sage-grouse chick diet may be ...

Oregon Forest Pest Detector seeks to prevent damage to valuable trees

The dreaded emerald ash borer has wiped out millions of ash trees throughout the eastern United States and Canada since it was discovered in Michigan about 20 years ago. As the beetle has moved west, cities have spent ...

OSU works to educate public on sudden oak death

Sudden oak death (SOD), caused by a non-native pathogen Phytophthora ramorum, has killed hundreds of thousands of tanoak trees in Curry County, Oregon, since it was first detected in 2001. With the expansion of the state ...

Oregon State leads the way to better pest management

Pesticides are important tools for farmers around the globe—ask anyone who has contemplated a hundred acres of cabbage aphids. However, some pesticides are significantly more hazardous than others. Broad-spectrum pesticides carry risks...

OSU educates growers about invasive, fruit-damaging fly

When a small, invasive, flying insect called spotted wing drosophila (SWD) first arrived in Oregon in 2009, it was a pest unlike any other. While its fruit fly cousins lay their eggs in overripe fruit, this insect lays eggs...

OSU targets invasive stink bug that threatens valuable crops

The brown marmorated stink bug (BMSB) is not a picky eater. The invasive species has a taste for more than 100 types of crops, including blueberries, wine grapes, cherries and hazelnuts. Since 2009, the insect has damaged ...

Extension educates Warm Springs tribal members about invasive weed control

Invasive weeds such as medusahead rye, ventenata and cheatgrass have severely damaged millions of acres of productive rangeland in the United States and on tribal reservations, including the Confederated Tribes of Warm Springs ...

OSU helps create management framework, field guide to address threats to sagebrush ecosystem

The invasion of annual grasses, an unprecedented rise in wildfire, and encroachment by conifers have substantially contributed to a 50-percent reduction in Oregon’s sagebrush ecosystem over the past 150 years. Such extensive habitat...

Bilingual outreach keeps agricultural businesses sanitary

Workers at Oregon’s nurseries are on the front line in making sure their plants are healthy. But some don’t speak English or have formal training in horticulture. If they come across an infected plant, they might not be ...

Curriculum and website help teachers educate students about aquatic invasive species

Aquatic invasive species can damage water resources and eat or displace native organisms. Educating children, who can serve as models of change, about invasive species is one way to prevent their introduction. Sea Grant programs ...