Salisbury is taking action against two invasive threats to Shumaker Pond and other area waterways. Here's more to know about what's being done.

Hydrilla, which was first identified ... which eradicate both invasive and and native species. Pesticides are used for advanced infestations. "That's a worst-case scenario, he said.

Researchers say they're seeing more of these colorful blobs growing on docks, but they're not the only invasive marine ...