294 THE STOCK owner's ADVISEE. 



TICKS. 



They are seen in horses, cattle, sheep, and dogs. Their mouths 

 are in the form of a sucker, and they attach themselves so firmly 

 that they cannot be removed without tearing away the skin. 

 They generally attach themselves to the parts least covered with 

 hair. To remove them, their bodies must be cut off by sharp 

 scissors, or kill them with the oil of turpentine. They multiply 

 rapidly in hot climates, particularly in low lands or tidewater 

 counties. 



FLY. 



A small fly resembling the house fly often proves a great 

 source of trouble among horses and cattle during the months of 

 August and September. They are longer and slimmer than the 

 common house fly. They are most abundant in low, wet places. 



Treatment. — Use the carbolic acid lotion; keep the animal in 

 during the day. Preparations containing tar should be used. 



BOT FLIES. 



Bot fly eggs are deposited in the skin, and are there developed 

 into the larva of the fly. The bot of the ox is a large species. 

 They form tumors on the backs of cows and oxen as large as a 

 partridge egg. When the egg is deposited it is attended with 

 severe suffering, causing the cattle to run wild and furious and 

 stray from the pastures. They will run bellowing from the rest 

 of the herd to brush or water. The tail from the severe pain is 

 held with a tremulous motion straight from the body, and the 

 head and neck stretched out to the utmost. If the laiwa be re- 

 moved from its nest it will be seen to be of a white and almost 

 transparent color. When it has attained its full growth it works 

 its way out and drops to the ground, and ultimately becomes a 

 fly. Bots are found in other animals, and are said to exist in man. 



