9 



blown out with the chaff in hulling, as are also more or less of those 

 infested. 



DISTRIBUTION. 



The insect is known to occur from New England to Oregon, Washing- 

 ton, and California on the west, and south to Mississippi; and, in fact, 

 it may be confidently looked for wherever its food plants are grown. 



NATURAL ENEMIES. 



While parasites have been frequently reared from infested clover 

 heads, it is as yet impossible to say whether the\ T had prej^ed upon this 

 or some other insect occurring with it. 



PREVENTIVE MEASURES. 



While it would seem that the same measures recommended for the 

 flower midge might apply to this insect, more careful study and experi- 

 mentation than have yet been given the subject will be necessary before 

 we can secure definite assurance that this is so. 



If all outstanding clover heads were destroyed and the chaff and 

 stems burned after hulling, this would in all probability greatly reduce 

 its numbers the following year, even if it did not exterminate it. 



Approved : 



James Wilson, 



Secretary of Agriculture. 



Washington, D. C, April 12, 1906. 



O 



