Heart worm prevention should be given year round. You can also do sentinel and Advantix together instead of heart guard and Advantix. I use Advantix in the warmer months and I only do it every other month and don't have any problems. It is the only thing that works for ticks here.
__________________  Taylor  My babies Joey, Penny , Ollie & Dixie   Callie Mae, you will forever be in my heart! |