ii8 Weeds. 



Modes of Eradication. 



The following are some of the most 

 effective modes of dealing with tliis most 

 pernicious weed : 



1. Modifying the rotation. Until the 

 fields infested with the thistle can be spe- 

 cifically dealt with by one of the modes 

 described below, drop out of the rotation, 

 so far as practicable, all crops which will 

 allow the thistle seeds to ripen before they 

 can be cut. 



2. Autumn plozuing and spring cultiva- 

 tion, foUoived by corn or some other culti- 

 vated crop. Plow the land immediately 

 after harvest. Plow shallow with any kind 

 of plow that will cut the thistles off clean 

 ivithout breaking up the creeping root- 

 stocks. Keep the thistles from showing 

 above ground until the late autumn plow- 

 ing, which should be deep for the sake of 

 the crop that is to come after. In the 

 spring, keep the thistles under by the use 

 of a suitable cultivator until the time for 

 planting the cultivated crop. Give this 

 crop sufficient cultivation to insure a good 

 yield, and take pains to keep the thistles 

 that spring up in the line of the rows cut 



