COMPARATIVE DKVELOPMKNT OF FRUIT BUDS AND SPURS. 95 



Tlio miinlHM- of leaf ])iids producod on tho sprayed and unsprayed 

 trees per lineal inch or foot of old wood did not j>:reatly differ. There 

 was, however, a gain of 1 per cent in favor of the sprayed trees, as 

 shown below: 



Taui.k 12. — Gain in number of leaf Inids in farm- of .sprayed trees. 



Records. 



Length of ohl wood, raeasurcrl in inches, on sprayed and unsprayed trees 



Number of leaf Imds 



Average unniber of leaf buds to inch of wood 



Gain in favor of spniyed trees pcr cent. . 



Trees. 



The tendency of the new orowtli to send out lateral ])ranches and 

 spurs was much more marked upon the sprayed than upon the 

 unsprayed trees, the gain in this case being lOl) per cent. This is a 

 decided advantage, for the tree is thus enabled to bear a heavier and 

 more eijually distributed crop than where such laterals are few. 



Table IS.— Gain in number of lateral ahoola ami spitrxfrom new vjood on sprayed trees. 



Reeonls. 



Length of new wood, measured in inches, on sprayed and unsprayed trees... 



Number of lateral shoots and spurs from new wooil 



Number of lateral shoots and spurs per inch of new wood 



Gain in favor of sprayed trees per cent.. 



Trees. 



Sprayed. Unsprayed. 



18,174 

 640 



0.0352 

 109 



16,390 



276 



0.016S 



A complete tabular presentation of the data from w hich the four 

 preceding tables have been drawn will be found under the following 

 heading. 



THE DEVELOPMENT OF NE^V FRUIT BUDS AND FRUIT SPURS FOR THE 

 YEAR FOLLOWING AN ATTACK OF CURL. 



In February, 181)1, while the action of the sulphur sprays was being 

 considered in the Riviera orchard, the question arose as to the rela- 

 tive al)ility of sprayed and unsprayed trees to produce fruit buds and 

 fruit spurs for the year following a severe attack of curl. Many trees 

 in this orchard had been sprayed with the sulphur sprays in the 

 winter of 1892-93 for the destruction of the San Jose scale {Aspidio- 

 tm perniciosus). The manner in which this work was done furnished 

 an excellent opportunity to ascertain the facts desired respecting the 

 development off ruit l)uds. It was noted during the early part of the 

 winter that individual trees, scattered through a 10-acre block of 4-year- 

 old Crawfords Late, had become infested with San Jose scale. A 

 careful examination of this part of the orchard was then made, and 

 each tree found to be infested with the scale was marked for spraying. 



