28 BEGINNERS' GUIDE TO FRUIT GROWING 



When double planting is practiced as described 

 below, apples should be set either 16^2 x i6 l / 2 feet, 

 to be thinned out to 33 feet, or 20 x 20 feet to be 

 thinned out to 40 x 40 feet. \Yhen apples are inter- 

 planted with peaches or dwarf apples the same dis- 

 tances should be observed. Pears interplanted with 

 dwarf pears, dwarf apples, sour cherries or plums, 

 should be placed 25 x 25 feet, with the temporary 

 trees between, making the original planting i2 l / 2 

 x 12^2 feet. In such a plantation, however, every 

 third longitudinal row of fillers will need to be re- 

 moved at a comparatively early age so as to allow 

 the passage of spraying machinery. 



The following table shows the number of trees 

 required to plant an acre when placed at various 

 distances : 



NUMBER OF TREES TO THE ACRE 



6x6 feet, 1,210 trees 



8x8" 680 " 



10 x 10 " 435 " 



12 X 12 " 302 " 



12Y 2 X I2i/>" 2/8 " 



15 X 15 " 193 " 



16 x 16 170 



i6y 2 x i6y 2 " 1 60 " 



20 X 20 " 1 08 " 



24 x 24 75 



25 x 25 70 

 3 x 3 48 

 33 * 33 40 

 35 ^ 35 35 

 40 x 40 27 



45 x 45 " 2I " 



50 x 50 " 17 " 



