"Probably isn't [spreading] on its own." Expert issues stark warning about dangerous invasive pest found across the US: ...

An emerging invasive insect species has been causing problems with elm trees across the Midwest. According to the Indiana Department of Natural Resources, the invasive elm zigzag sawfly is active from ...

The elm zigzag sawfly is not a fly, but it is a problem. Since first being found in North America back in 2020, the species ...

A new invasive insect is emerging in Central Ohio, and state officials want to know if you see one. Elm zigzag sawfly adults were trapped in Delaware County the week of April 15, according to the Ohio ...

WISCONSIN (WQOW) - A new invasive species is making its way through the Badger State. The Wisconsin DNR said the elm zigzag sawfly has been detected in at least 17 counties. It's a caterpillar native ...

Pests are ravaging keystone species like ash, elm, and beech. But researchers are breeding the survivors into more resilient populations. Port Orford cedar trees in Redwood National Park that were ...

For decades, the American elm population has dwindled, and one of its greatest threats is the deadly Dutch elm disease, which has taken its toll on Brown’s campus, too. The tree removal culminated in ...

The 36 trees planted last week at Boutwells Landing senior living community in Oak Park Heights have a big job: To help revitalize the state’s elm population. The American elm trees, each about 2 ...