How do I organically get rid of grubworms in my raised beds?

There are several organic ways to reduce the number of grubworms in a raised bed, or even in a ground garden. Kyle McLane from Dixon Gallery and Gardens talks about beneficial nematodes and BT as organic ways to reduce grubs.

Related Videos:
BT (Bacillus Thuringiensis)
Are beneficial nematodes effective to control fire ants? I have them in my raspberries.
Nematodes
What’s the best way to kill grubs?

Related Resources:
What To Do About White Grubs in Your Vegetable Beds
White Grubs in Lawn and Garden Soil