Nightcrawlers Ruining Northern Forests? - Red Worm Composting

Earthworm Invaders Ecosystems on the Edge

European Night Crawlers are a dual purpose worm. They are great composters and also great bait worms. They grow 2-3 times larger than a red worm.

European Night Crawlers - Iowa Worm Composting

Do Composting Worms Pose a Threat as Invasive Species? - Red Worm Composting

Uncle Jim's Worm Farm Super Red European Nightcrawlers for Composting and Garden Soil Aeration, Large Nightcrawlers Improve Soil Structure and Quality for Healthier Gardens

Buckeye Organics

Invasive jumping worm spreads to 15 states

Pheretimoid jumping worms confirmed to be in Ontario; can destroy topsoil - Clean North

Nightcrawler Question - Red Worm Composting

Can You Mix Red Wigglers and Nightcrawlers

European Nightcrawlers – In More Detail - Red Worm Composting

Why You Want Redworms and Earthworms (Nightcrawlers) in Your Garden - FineGardening