Of course we can't do that. If a player's style is too consistently rough or illegal, he will disqualify himself with five fouls; if it is sufficiently unsporting, violent, or otherwise unacceptable, he'll disqualify himself with two Ts or a flagrant/flagrant T. Otherwise, no, we can't do that.
ESPECIALLY in a summer league, call these fouls - what better time for kids to get the message, or officials to learn to penalize illegal contact?