“Worms are becoming resistant to the wormers with ingredients ending in 'ectin'. They have not erradicated pin worms from my horses in the past. Recently I believe two horses may have gotten round worm as they had developed pot bellies with ribs showing. The 'ectin' wormer did not make any difference. However, within a week of worming with Strategy T, I have seen a big difference and they are continuing to improve.”
