Worming

I know folks know a lot more than me and may get tired of some questions, but here goes anyway LOL....

 

I finally got my head shoot in along with a small holding corral, I haven't been able to worm in the past but now I'm ready..

 

Question , is there a certain time of year that is best, my very small herd is 3 cows, 2 are most likely bred back, 1 bull, 2 calf's 8 mos old, 1 - 2 weeks old..

 

Should I wait till spring ?

 

If I worm all but the new born now, could I do it again in late spring when the new calf is older and hit them all again ?

 

I will be using Ivermax pour on.... 

 

Thanks, Chris

 

 

Worming