CORONAVIRUS UPDATES: Visit Penn State's virus information website to keep up with the latest from the University on the global coronavirus outbreak.

invasive species

invasive species

Two female students check a net after sampling Lake Erie for bloody red shrimp.

Behrend students discover invasive shrimp species in Lake Erie

Forest floor

Native forest plants rebound when invasive shrubs are removed

round goby

Invasive round gobies may be poised to decimate endangered French Creek mussels

Lizard on rock

Having stressed-out ancestors improves lizards' immune response to stress

ailanthus tree

Tree-of-heaven's prolific seed production adds to its invasive potential

invasive species project

Have fun learning about invasive species with a new tool from Pennsylvania 4-H

Josh Mulhollem

Alumni in the field: Josh Mulhollem, aquatic invasive species biologist

Allium leafminer feeding damage

Growers urged to be on lookout for fall emergence of invasive onion pest

Allium leafminer adults

New insect pest a threat to onion and related crops in Pennsylvania

Spotted lanternfly wings spread

Collaboration, research key to managing invasive species

Lizard with fire ant

From twitching lizards to noisy frogs, adaptation is often survival of the weird

Spotted lanternfly wings spread

Entomologists hope vigilance, research stop newly discovered spotted lanternfly

Untitled

Aquatic invaders can topple plant and fish populations in Northeast

Untitled

Penn State, DCNR team up to keep plant invaders out of parks

Untitled

For park, surviving the Revolution easier than withstanding human use