No. 4.] POTATO GROWING. 3Gi) 



arc killed by frost. One thorough spraying in rainy weather before 

 late blight has gained a foothold may be the most effective applica- 

 tion of the season. If early blight is prevalent, five or six very thorough 

 sprayings, beginning early in the season, are necessary to insure 

 sufficient protection. 



Summary. 



To successfully grow potatoes : — 



Select highly fertile land, so situated that it will suffer as little as 

 possible from cither excessive rain or from droughts. 



Thoroughly pre[)are the soil, and fertilize liberally. 



Spray for insects and bUght, early and often. 



Keep the crop free from weeds and the surface of the soil loose dur- 

 ing the whole season. 



Do not let anything prevent the potato field from receiving con- 

 stant care. Vastly more failures in potato growing in Massachusetts 

 can be traced to neglect of crop than to lack of knowledge. 



