Are there "natural" remedies that effectively prevent heartworm, fleas & ticks

Dr. Roger has recently been asked by several of his veterinary clinic clients his thoughts on a Dog Naturally Magazine dismissing the necessaity for the administration of heartworm, flea and tick preventatives in favor of natural alternatives and creative diagnostics the author deems effective.  Dr. Roger delves into the article and reacts to each point in order to objectively set the record straight in this increasingly prevalent topic. 

Dr. Roger Welton is a practicing veterinarian and media personality, CEO/attending veterinarian at Premier Veterinary Care , and author of the top selling book, The Man In The White Coat.  Dr. Roger selects listener emails to be addressed on the air, so if interested in having your voice heard on the podcast, email comments or questions to comments@web-dvm.net.  For more content from Dr. Roger visit his blog at Web-DVM.net and you can also follow his public Facebook profile by friend requesting "Roger Welton DVM".