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o PLANT DISEASES 



19,690 pounds of fruit, which sold for 8625.87. This 

 year the same vineyard was treated seven times, as 



follows : — 



' (i) March i, simple solution of copper applied to canes 



and posts. 



'(2) Just before blossoming, with Bordeaux mixture B. 

 ' (3) Just after the grapes had formed, with Bordeaux 



mixture, same as 2. 



'(4) July, same as 2 and 3. 



'(5, 6, and 7) At regular intervals between July 10 and 

 August 25, with eau celeste. 



' The total cost of the foregoing treatment, including a 

 Eureka sprayer, was 1112.52, divided as follows: — 



Eureka sprayer, . . . $21.50 

 Material, .... 38.52 

 Labour, .... 52.50 



The yield of fruit this season was 53,430 pounds, which 

 sold for S2 18 1.39. Thus it will be seen that the yield 

 for 1890 (treated) exceeded that of 1889 (untreated) by 

 33,740 pounds, while there w^as a net increase in the 

 profits of $1555.52. 



'Turning now to another class of plant diseases, we will 

 give the results of a series of experiments personally con- 

 ducted the past two seasons in the nurseries of Franklin, 

 Davis, and Co., near Baltimore. In the spring of 1889 

 this firm set out a block of 50,000 pear seedHngs with 

 the expectation of budding them the following July. As 

 a rule seedlings of this kind are attacked by leaf blight 

 i^Eiitomosporium maculatit7n,\,€y.) as soon as the foliage 

 appears, and in consequence it is a rare thing that more 

 than half of the buds take. In the hope of saving the 



