CHAPTER VI. 



SPECIFIC MODES OF ERADICATING WEEDS OF 

 THE THISTLE FAMILY. 



This chapter and those which follow deal 

 with specific modes of destroying certain 

 kinds of weeds which infest the northern 

 part of the United States. Most of these 

 weeds are also troublesome in Canada. 

 Some are local in their distribution, while 

 others are found in greater or less numbers 

 from the Atlantic to the Pacific. While 

 the general methods of weed destruction 

 described in the previous chapter are as a 

 rule equally applicable to all weeds, the 

 specific modes described in this and the 

 following chapters are especially helpful 

 when applied to the weeds for which they 

 are intended. 



It should be remembered, however, that 

 the modes described, here as especially 

 applicable to certain weeds will also apply 

 to all other weeds not specifically men- 



