SOYBEANS FOR MASSACHUSETTS , 15 



varieties, it will do some damage. The pest can be controlled with a poisonous, 

 spra\", but this method of control is, of course, impracticable on so\beans to be 

 used for forage. 



Soybeans are also subject to certain bacterial, fungous, and virus diseases 

 which in some seasons significanth- affect yield and (|uality of the crop, but which 

 ordinarih' are not serious in New England. 



^■"•■'''-^"— >:.-;. .^ -.-i:^. 



: ;^^ - ' - '^■r:: :S-' ^^.^^ >:\%n. -^ w.*w.. V ■ %i 



Figure 5. Preparation of Field for Use of a Weeder. (Courtesy J. B. Abbott.) 



Upper: Soybeans coming up in a seedbed as left by planter. A harrow or weeder could not 

 be used without serious injury. 



Lower: Soybeans coming up in a seedbed finished with a plank drag. On such a seedbed a 

 harrow or weeder can be used at any time necessary to kill weeds without injuring the soybeans. 



