14 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
This method is more economical than that of grubbing trees here 
and there, or whole rows, and replanting with suitable varieties, since 
pollen is normally provided at an earlier date, and the work of top- 
working is less costly than that of grubbing and replanting. 
When the fault lies in a solitary tree, or a few trees of only one 
variety having been planted, as is often the case in small gardens, it 
is usually convenient to plant another variety, having a similar flowering 
period, near by. If this be impossible, one or two branches may be 
grafted with another variety. 
The remedy, then, for the faulty pollination of apples and its 
consequent loss of crops is in the hands of the grower, and lies in the 
intelligent intermixing of varieties, the choice of which must depend 
upon the normal time of flowering and the grower's own preferences 
or economic requirements. 
