Bui. 1477, U. S. DeD- 
Plate 14 
Growth and Fruiting Habits of the Wickson Plum in Relation to 
Pruning and to Soil and Other Conditions 
A.— A 12-year-old tree which has been moderately headed back each year and kept open so 
that the spurs have not been killed by shade or induced to grow to twigs such as those 
of most trees severely pruned and irrigated. The soil here is fertile but not under 
irrigation. (Vacaville, Calif., June, 1923) 
B.— Fruiting twigs showing fruiting spurs and cutting back which has been practiced in 
pruning to maintain vigor 
C— An old tree growing in fertile unirrigated land. The new growth has been severely headed 
back each winter. >,ote the short growth of shoots and barren framework and 
secondary branches 
