In a message dated 8/3/2005 5:39:58 A.M. Central Standard Time, DawgDog@xxxxxxx writes: I've noticed in the past 2 years both Advantage and Frontline do not seem to be working as well. It used to be we could eliminate an infestation with monthly treatment; not so anymore. Dr. Michael Drysden, who is a flea expert, claims that resistance had not developed to these products, but I'm not so sure. I do recommend using Advantage every 2 weeks if needed, but it is my understanding that Frontline should not be applied more than monthly. Carl Anderson DVM I noticed the same last year. Now use Advantage for 2 months, then Frontline for 2 months and seems to do the trick switching back and forth. Hope the fleas do not catch on.... Molly Trillia German Shepherds ============================================================================ POST is Copyrighted 2005. All material remains the property of the original author and of GSD Communication, Inc. NO REPRODUCTIONS or FORWARDS of any kind are permitted without prior permission of the original author AND of the Showgsd-l Management. ALL RIGHTS RESERVED. ALL PERSONS ARE ON NOTICE THAT THE FORWARDING, REPRODUCTION OR USE IN ANY MANNER OF ANY MATERIAL WHICH APPEARS ON SHOWGSD-L WITHOUT THE EXPRESS PERMISSION OF ALL PARTIES TO THE POST AND THE LIST MANAGEMENT IS EXPRESSLY FORBIDDEN, AND IS A VIOLATION OF LAW. VIOLATORS OF THIS PROHIBITION WILL BE PROSECUTED. For assistance, please contact the List Management at admin@xxxxxxxxxxxx VISIT OUR WEBSITE - http://www.showgsd.org ============================================================================