120 Diseases of Greenhouse Crops 



The organisms Pseudomonas teutlium Met., Pj. 

 heticola Ew. Sm., Urophlyctis leproides (P. Mag.) 

 Trab., Cystopus bliti (Biv.) Lev., Uromyces beta. 

 Kuhn, and Phoma beta Fr. seem to attack beets 

 out of doors only. 



Carrot (Daucus carota) 



Cultural Considerations. Carrots are forced in 

 about the same way as the radish. The soil, how- 

 ever, should be more sandy. The variety best adapt- 

 ed for forcing is the early small topped Short Horn 

 type. 



Diseases of Carrots 

 Carrots are very hardy and subject to but few 

 diseases of consequence. 



Soft Rot, see Cauliflower, p. 126. 

 Root Rot, see Rhizoctonia, p. 20. 



Cauliflower {Brassica oleracea var. botrytis") 



Cultural Considerations. Cauliflower is not so 

 extensively forced because large amounts of it are 

 shipped from California during the forcing season. 

 Nevertheless, indoor cauliflower is far superior in 

 quality, and with the proper advertisement the 

 forced product should gain greater recognition 

 frcMn the consumer. There are few varieties which 

 lend themselves well to forcing. The Snowball and 

 the Erfurt are preferred by most growers. The soil 



