THE HORN FLY UF CATTLE. 7 



The effect of the fly's presence in considerable numbers on 

 Kansas stock farms will be to interfere seriously with some of 

 the present methods of feeding cattle. It will prove a serious 

 drawback to late marketing, as little or no flesh will be taken on 

 by cattle constantly harassed by swarms of the blood-sucking 

 pests. It is now the custom of some feeders to rely to some 

 extent upon spring grass for fattening, and this method of feed- 

 ing is the one which will be most directly influenced by the in- 

 coming of the fly. Where cattle are full-fed through the winter 

 and marketed early, the fly will have little chance to work mis- 

 chief. In fact, early marketing is an obvious means of escaping 

 the pest's attack. 



As it is very desirable that stock-growers should be well- 

 informed regarding the local occurrence of the fly in the State, 

 it is requested that during the present spring and coming sum- 

 mer, any one noting the pest should report the fact, with details 

 of occurrence, to this Department. Specimens of the flies should 

 be sent. It may be possible, by this means, that information as 

 to the probable extent and prevalence of the fly next year can 

 be pretty accurately furnished the stock men of the state. 



Note. Since the above was written and in type the Horn 

 Fly has been noted in considerable numbers about Lawrence. 

 Mr. Coryell Faulkner, a student of the Department, was first to 

 discover it. Mr. W. A. Snow has also made some interesting 

 observations of the fly's habits when infesting dehorned cattle. 



