116 Agricultural Experiment Station, Ithaca, N. Y. 



Table III. — Showing the Value of Different Amounts of 



Fungicide. 



The average of the check trees is here again used for comparison. 

 The marked benefits derived by applying only two gallons are seen 

 at a glance. The improvement is still greater where three have 

 been used. Four gallons did not make sufficient difEerence, as 

 shown by the table, to make the use of this amount desirable. 

 Judging only fi*om the table, therefore, it would appear that the 

 proper amount of the Bordeaux mixture to use on trees of this size, 

 provided the liquid is well distributed, is between two and three 

 gallons. 



But figures are not the most satisfactory things to deal with, 

 especially when they refer to the grading of apples. The table does 

 not show that the size, symmetry and fairness, the rust of course 

 excepted, increased almost directly in proportion to the amount of 

 the mixture used. It does not show that the apples which received 

 hut two gallons at each application were only about two-thirds as 

 large as those which were treated with four, yet such was the case, 

 nor is the degree of insect injury hinted at. Nevertheless, the 

 apples which had been most thoroughly sprayed showed fewer insect 

 injuries ; I refer particularly to those many kinds that are so com- 

 monly seen upon the surface of the apples, and not to the codlin 

 moth. This permitted a more regular growth to take place, and 

 the apples treated with four gallons of the Bordeaux mixture were 

 decidedly superior to those treated with only three. Although this 

 result was entirely unlocked for, it was so evident that it could not 

 escape notice. Now the question arises, does the Bordeaux mixture 

 have any influence in keeping insects from fruit, or does it merely 

 encourage growth ? The scab did not influence this result, for it 

 was upon the amount of scab present that the apples were graded. 



