Originally Posted by lilruffian
No it's not necessary. Most people I know only deworm their horses twice a year. Once in the spring & once in the fall after the ground freezes unless they're constantly being put in/around new horses or if it's clear the horse has worms.
thats what I'm going to do... I just bought some dewormer today... but I have to wait until November to give it to them... do you think it will last until then? Yah my horses (I only have 2) are only around one another, so I'll just do the twice a year thing.
Thanks by the way!