CALIFORNIA AVOCADO ASSOCIATION 



159 



Another interesting variation of this plan would be to use a tall, up- 

 right growing variety, like the Lyon, for the third fillers — figures 3 and 3 

 in diagram — in order that they may remain longer without interference 

 and delay the thinning. The permanent trees should be planted with those 

 varieties believed by the grower to be the best. 



Other filler trees than avocados might be used in some of these places, 

 as for instance, for the first fillers — figures 1 in diagram — such trees as 

 peach or apricot. In view of the probability, however, that the method 

 of handling an avocado orchard is pretty certain to include mulching under 

 the trees, the use of other fillers than avocados may not be desirable. 



It may be that 60 by 60 feet is slightly farther apart than necessary 

 for the permanent trees, and a second scheme placing the permanent trees 

 v/ith rows 60 feet apart and the trees in the row 40 feet apart, may also 

 be worthy of consideration. This will give 18 trees per acre in the per- 

 manent planting and still leave a space 60 feet wide between the rows one 

 way to provide for irrigation and working space. This plan is indicated 

 in the diagram below. In this diagram P again stands for permanent 

 trees, 1 for the first fillers to be removed, 2 for the second fillers to be 

 removed, 3 for the third fillers to be removed, and 4 for the fourth 

 fillers to be removed. The permanent trees would thus be in rectangles. 

 (See diagram 2.) 



Diagram 2. — Avocado Planting Plan 



Irrigation Headline 



30-ft. 3 30-ft. 



o 



2 



<! 



5* 



to 



P 30-ft. 3 30-ft. P 



If this plan is followed, it would seem to the writer that the first 

 and second and third fillers — 1, 2, and 3 in diagram — should be of some 

 precocious, early-fruiting variety, like the Lyon, and that the permanent 

 trees P and the fourth fillers 4 should be planted with the varieties desired 

 for the permanent orchard. 



The principle feateure that recommends the adoption of some plant- 

 ing plan similar to those here suggested is the advantage it gives of using 



