408 



POLLINATION AND FRUIT SETTING 



other varieties each year until the grafts are able to furnish 

 sufficient pollen for cross-pollination purposes. 



If the grafts are pruned lightly each year, enough blossoms 

 are often produced during the third or at least the fourth year 



Fig. 16L Lower, blossoming branches of a good pollenizer in buckets of 

 water hung in the branches of a variety in need of cross-pollination. 

 Upper, colonies of bees on their way to Michigan orchards for pollination 

 purposes. {Mich. Special Bui. 188.) 



so that it will not be necessary to continue to bring in the 

 buckets of blossoming branches. It is very important, how- 

 ever, that plenty of bees be retained for distributing pollen 

 from the grafts. 



