Milfoil and Other Invaders

The aquatic plant milfoil first came to New Hampshire lakes decades ago, but it's grown to be a bigger and bigger problem since then. It chokes out all other plants and takes over entire bodies of water. Some towns have tried everything from chemical warfare to harvesting the plant with machines. We'll find out what new approaches are being tried and to what degrees of success. We'll also talk with naturalist Iain Macleod about the state's other invasive species -- from Garlic Mustard to the Japanese Beetle.