M.7. Table 3 shows estimated establishment costs. 

 The more dwarfing rootstocks required a higher 

 tree cost, since more trees were planted per acre. 

 They required more labor in layout and planting. 

 Also, the cost of posting or establishing a treUis 

 was quite high and neither is required for trees 

 on M.7. 



Table 4. Itemized per-acre costs of growing 

 Mcintosh trees during their second season. 



differences in the costs of maintaining 

 nonbearing and bearing trees on these 

 rootstocks. Table 6 gives the individual and 

 cumulative costs for 9 years for each rootstock. 

 The major differences among rootstocks related 

 to training requirements, with the trellised trees 

 requiring significantly more labor to maintain. 

 Also, equipment usage was higher with the 

 dwarfed trees because of the greater number of 

 rows per acre to travel. The amount of spray 

 material required was considerably lower for 

 trees on M.9 because of the lower tree volume 



to a treUis. 



Growing costs differed as the trees on the 

 different rootstocks matured. Tables 4 and 5 

 itemize the growing costs for the second and 

 ninth growing seasons, respectively, to illustrate 



These data suggest that during the early 

 fruiting years Mcintosh trees on M.9 are 

 considerably more profitable than those on M.7. 

 As these trees reach full maturity the 



