CHAPTER 26 



THE SWEET PEA {Lutkyrus odoTdtus L.) 



Cultural Considerations.^ The best position 

 for a sweet pea house (fig. 69, a) is east and 

 west with a full southern exposure. The sides of 

 the house should be considerably higher than for 

 other crops. Sweet peas require an abundance of 

 water during the growing season. Frequent syring- 

 ing of the foliage is also necessary to keep the red 

 spider in check. In ventilating care should be taken 

 not to admit cold drafts; nor should the plants ever 

 be chilled. Exposure to drafts or sudden falls in 

 temperature will predispose the plants to bud drop 

 and to powdery mildew. 



Diseases of the Sweet Pea 



Indoor sweet peas are subject to numerous dis- 

 eases. These, if allowed to spread, will deprive the 

 grower of his year's labor and profits. 



Physiological Troubles 



These troubles are usually induced by improper 

 conditions of the soil. Root burn, for instance, may 



* For fuller information see Taubenhaus, J. J. Culture and 

 Diseases of the Sweet Pea, 1917. E. P. Dutton Co., New York, N. Y. 



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