best fly spray for cattle May 7, 2019May 9, 2019 by Ben How do you control flies on cattle? Do fly tags work on cattle?What is the best natural fly repellent?How do you treat lice in cattle? Why do cows always have flies on them? BenThis post was posted in Articles Post navigation Automatic livestock waterersBest hay saver feeder Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.