Hi Travis,
Garlic is one of the better choices planted throughout the strawberry bed, but go somewhat heavy on the planting.
For quicker results, pumpkin rind has incredibly strong anti-fungal properties. I cut into chunks, scoop off virtually all of the meat and then whiz in a food processor. Steep in cool water overnight, strain and then spray liberally. I've never measured amounts, but I would guess that I put about 2 cups of pureed pumpkin RIND in a gallon jar with water. Also, keeping indoors (or below 80F) seems to work best. Because you already have an outbreak you will have to hit it pretty hard; every 3 days for at least a couple of weeks intially.
Incidently, this is reportedly good also good on tomatoes and grapes (particularly in humid areas where Black rot is a problem). I've just installed a muscadine vineyard this past spring (not very permaculture like... I know
)and this will be my first line of attack should I have problems with them.
Lastly, there is an Organic approved product called PlantShield HC available from lots of places that I have heard good things about for black rot on strawberries.
Good Luck!
Roy