Letiuce 



103 



house and in the field is liable to infestation. Tobacco dust is 

 employed. In the greenhouse fumigate with nicotine. 



Cutworms and slugs sometimes attack lettuce. See pages 

 430, 437. 



Lettuce is the standard salad plant. It is good in itself, 

 and both market and kitchen practices are well under- 

 stood. It needs no explanation. The culture is also sim- 

 ple. It does not occupy the land the entire year. It is a 



38. Common head lettuce, seen from above. 



succession-crop or companion-crop. It is grown in the 

 North spring to autumn and the South autumn to spring. 

 It readily adapts itself to forcing in glasshouses. It grows 

 well in hotbeds and frames. It may be made to stand 

 much frost. For all these reasons, it is a year-round 

 crop. 



Lettuce is commonly grown as a seed-bed crop. The 

 early crop is usually started in the house or in hotbeds and 



