108 Zessons in Fruit Growing. 



delta region of the Mississippi river, and in California. 

 Only in the southern parts of Florida and California do the 

 trees escape damage from freezing (133). 



2. The orange is mostly propagated by budding on seed- 

 lings of the sour orange, the "rough lemon," or Citrus 

 trifoliata; the latter is used in sections where the first two 

 suffer from cold (133). 



3. The orange succeeds best on deep, rich, well-drained 

 soil. In parts of Florida it is extensively grown on sandy 

 soil, well fertilized (137). 



4. Orange trees are planted in the orchard when 3 to 5 

 years old from the seed. The trees are commonly grown 

 21 to 40 feet apart, but those worked on trifoliata stocks 

 may be set closer (138). 



5. Orange orchards are commonly well cultivated during 

 the growing season. In Florida, cultivation often ceases 

 after the summer rains begin (139). 



6. The orange harvest begins in October in the Gulf re- 

 gion; in California it commences a month later. The 

 fruits are cut from the tree, " wilted" a short time, wrapped 

 in tissue paper and packed in boxes with moderate pres- 

 sure (140). 



7. Orange trees are protected from cold in the Gulf re- 

 gion by banking earth about the trunks, or by building 

 sheds over them. Sometimes heat is used in the sheds 

 (141). 



8. Scale insects are the chief enemies of the orange tree. 

 These are held in check by various caustic M^ashes (142). 



9. The lemon is less resistant to cold than the orange. 

 It is grown in the United States in the southern parts of 

 Florida and California (143). Its culture is very similar to 

 that of the orange (144). 



