For i nterpi anti ng in standard plantings, 

 cal ratio is 1:9, that is every third tree in 

 should be a variety that supplies an abundant 

 compatible pollen in synchrony with the bloom 

 This pollenizer variety should also have good 

 have cultural and pruning requirements, chemical sensitivity, and 

 other environmental needs that are in harmony with those of the 

 main variety 



the optimum practi- 

 every third row 

 volume of viable, 

 of the main variety, 

 marketability and 



down 



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 choice 

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When tr 

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which i 

 rows use 

 s much g 

 t r i b u t i 

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 11 e n i z e r 



trees a 

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that 

 ss row 

 rops s 

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 w of t 

 pol 1 e 

 varie 

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 have s 

 alfalf 

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case 

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 vement 

 nt row 

 u 1 1 u r i 

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 nds on 

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tend 

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 there 

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 Howeve 



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 is beha 

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 is almo 

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 ndard p 

 gs make 

 ithin r 

 ross on 

 e bees 

 e optim 

 to make 

 r , as i 

 factors 

 the sam 

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 hard ma 



up and 



vior pat- 

 onion 



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se in 



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 tree 



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e or more 



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um solu- 

 the 



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e row 



ess, for 



nagement 



Other ways exist to provide pollenizer pollen though none are 

 quite as effective as the proper number of optimally located trees: 



a. In some areas, particularly in the Northwest where aver- 

 age orchards are smaller, purchased pollen is sometimes 

 applied by hand with a brush or duster. 



b. Large bouquets of a suitable variety can be interspersed 

 along rows of the main variety to provide a temporary 

 supply of pollenizer pollen. 



c. Trees at intervals within the row can be top-grafted with 

 pollenizer varieties or pulled out and replaced with ap- 

 propriate varieties. 



