What treatment is recommended to rid horses of bot flies and worms?

In 1932 it was probably a rotation of various anthelmics. Today, it is common to use ivermectin.

Chewing tobacco, best de-wormer available. Haven't tried it lately, but it probably still works.

The carbon disulphide which should be administered in the months of December or January.


We used tobacco at home and in a real bad wormy horse I remember my grandpa had an old teaspoon attached to a piece of a tobacco stick about three feet long. He would put a piece of Blue Stone, he said the size of his pinky nail, on the spoon then drop it in the very back of the horses throat, then tip his head.

I had to look up carbon disulphide and found that it was used to fumigate for insects in grains and also as a solvent. Although it was toxic in high doses, it was used as a wormer until the 1940s with the introduction of phenothiazine.

Tobacco never really worked. What happens is the worms body is striped away but the head remains in the stomach lining the body redevelops.