aggressive to other dogs

Question
i have a 18wk old Boston terrier.I had her for three days. i recently found out that she show alot of aggression toward other dogs but not to humans. can i stop it? or is it to late?

Answer
It is not too late to attempt to change your dog's attitude toward other dogs.  I suggest you find a puppy kindergarten (in a dog training facility, look in your local paper or pennysaver) where dogs her age and size (NOT older and NOT much bigger) can interact for the purpose of building good dog to dog relationships.  Do NOT use ANY negative training techniques (NO choker collar) to address this.  It might be the leash restraint which is escalating her fear of other dogs; a long training leash might help and putting distance between you (especially if you're upset by her behavior) and your dog might help enormously.  Please repost with results or other questions.