BUD VARIATION IX THK LISBON" LEMON. 



6i 



bud sticks after they have been removed from the tree and are 

 trimmed ready for use. 



While it is possible to practice top-working dming quite a long 

 season, commercially it is usually done through the months of April, 



Fig. 13.— Unproductive lemon tree of the Villa Franca variety top-worked with fruit-bearing bud wood 

 of the Lisbon strain. The nurse limb shown at the left was allowed to remain for one year. The 

 photograph was taken two months after the buds were inserted. 



May, and June. In the course of these investigations it has been 

 demonstrated that the best results have been secured during May and 

 early June. Previous to top-working, the trees should be pruned, so 



137435°— 20— Bull. 815 5 



