I've never thought about spraying strawberries with Bordeaux mixture Scarey- but I don't see why not.
We had really bad blight last year on the spuds and toms- but my strawberry plants were no more fungusy than usual. we just picked off affected leaves- (botritus) .

Just remember to wash them thoroughly before you eat them!!
( it's a bit off-putting the thought of a blue strawberry though isn't it????)