or mares in the last month of 
pregnancy. 
Do not exceed the recommended 
dose. 
Study the product label. Care- 
fully follow the directions and heed 
all precautions on the label. 
Carbon disulfide.—This insecti- 
cide is introduced directly into the 
stomach of the animal. It acts as a 
fumigant, causing the bots to re- 
lease their hold on the walls of the 
stomach and intestines. /f adminis- 
tered improperly, it can kill the 
animal. 
Steps in obtaining and adminis- 
tering the treatment are: 
e Early in the fall, make an ap- 
pointment with a veterinarian to 
have your animals treated on the 
desired date. 
e Do not feed the animals for 18 
hours before they are treated. 
The veterinarian may administer 
carbon disulfide by stomach tube or 
in gelatin capsules with a balling 
gun. A horse weighing about 1,000 
pounds is given 6 drams of the 
chemical. Smaller animals are given 
less. Yearling colts should not re- 
ceive over 3 drams. | 
Do not feed or water the animal 
for 3 hours after the administration 
of carbon disulfide. 
To be most effective, carbon di- 
sulfide should be given 1 month 
after the warm-water treatment de- 
scribed under “External Treat- 
ment” (p. 8). During the month 
between treatments, the bots that 
were burrowing in the mouth at the 
time of the warm-water bath will 
have reached the stomach or the in- 
testines, where the carbon disulfide 
can kill them. 
M & A 4283 
Part of a horse's stomach heavily infested with bots. Note the lesions that these 
bots have caused. 
