Use of the Spud. loi 



cated, all stray weeds will be cut off before 

 they can do any harm. 



The cost of maintaining freedom from 

 weed intrusion, where once a state of 

 cleanliness has been attained, should not 

 be more than $30 or $40 a year for every 

 one hundVed acres of land. This estimate 

 is based on the supposition that all the 

 methods of cultivating and managing the 

 crops grown upon the hundred acres are 

 as they ought to be. 



With respect to the cost of the weed- 

 cleaning process, it may be mentioned here 

 that when a state of cleanliness has once 

 been secured, the cost of maintaining this 

 state of cleanliness by means of the spud 

 is the only direct charge to be made, for 

 the expense incurred in cleaning crops and 

 in destroying weeds by all the other means 

 described in these pages should be more 

 than met by the increased returns which 

 the crops will show by reason of the 

 improved cultivation which the weed-clean- 

 ing process necessitates. On the assump- 

 tion that every part of a one hundred acre 

 farm be gone over twice a year to keep 

 it free from weeds, and on the further 

 reasonable assumption that the cost of 



