I have a 7 month old steer calf losing his hair around his front shoulders and head. How can I tell whether this is lice or if it is ringworm?

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If it's lice you should notice the calf rubbing his head and body against anything that's standing around. If you can get close enough to him you could pull out some hair and if you look at it closely you might even see the lice crawling around in the hair. The other cattle are more than likely already infected too so you have to treat the whole herd. Any farm supply store has products for treating lice. I use Synergized Delice and dilute it with fly spray and use a garden sprayer to spray it over the animals. You can spray the whole animal but the lice seem to concentrate from the shoulders forward and back in the tail head area. Delice is actually a pour on but it's much faster to just spray it on than to run the animals through a chute and pour it on. I tried spraying it undiluted but it's too thick to get it through my sprayer. If anybody is wondering the garden sprayer is only used for spraying cattle. Cattle will lose their hair from ringworm too but that would leave a scaled ... more
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