174 



STATE HORTICULTURAL SOCIETY. 



scabby. The figures given in the table therefore represent the percent- 

 age of fruit so badlv affected as to have but little value on the market. 



TABLE VIII. — Results of spraying on the Salway variety in the Miller orchards, Okonoko, 



W. Va., 1910. 



Plat 

 'No. 



9 

 10 

 11 

 12 



Dates of spraying. 



(1) One month after petals fell, May 12; (2) June 17; (3) July 15 



(1) One month after petals fell, May 12; (2) June 17 



(1) One month after petals fell. May 12 



(1) Six weeks after petals fell. May 26; (2) June 28 



Check; not sprayed 



Rotted 

 fruit. 



Per cent. 

 2.5 

 1.9 

 6.8 

 1-0 

 37.6 



It will be observed that the results from plat 8, which had three 

 applications, are about the same as those from ])lat 9, which had two 

 applications, the scab and brown-rot having been almost completely con 

 trolled in both cases. The results of the treatment of plat 9 are shown 

 in figures 9 and 11. The superiority of two treatments over one may be 

 seen by comparing plats 9 and 10. The latter received only one appli- 

 cation and 27.2 per cent of the fruit became affected with scab, while 

 only 5.3 per cent of the crop on plat 9 was affected. Plat 11 received 

 the isame treatment as plat 9, except that the applications on ptat 11 

 were delayed tAvo weeks, the object being to determine the best time to 

 begin the spraying. In this case there was very little difference in the 

 results from the two ])lats. Of the fruit from the unsprayed trees, 87.5 

 per cent was rather badly affected with scab and 37.6 per cent was 

 affected with brown-rot, as shown in figiires 10 and 12. In other words, 

 the unsprayed cro|) was almost a total loss. 



The Bilyeu variety was given the same treatment as that applied to 

 Salway and the results were about the same. In this case the fruit 

 was not sorted and counted, but at picking time comparative notes were 

 made, attempting to show the estimated percentages of brown-rot and 

 scab. Fully 50 per cent of the unsprayed fruit was lost on account of 

 these diseases, while there was a loss of only about 5 per cent of the 

 fruit sprayed twice, although much of it showed some slight spotting 

 with scab. On the plat sprayed three times the scab was almost en- 

 tirely prevented. In most cases three treatments will be necessary for 

 the best results against scab on late-maturing varieties like the Bilyeu. 



EXPERIENCE OF FRUIT GROWERS. 



Following 



the recommendations of the United States Department of 

 Agriculture, a considerable number of fruit growers have adopted the 

 combination treatment, and in Georgia during 1910 perhaps not less 

 than one-fourth of the peach orchards were sprayed for the curculio, 

 brown-rot, and scab. In connection with the department's experiments 

 at Fort Valley, Barnesville, and Baldwin, Ga., an effort was made to 

 give personal instruction to as many orchardists as possible in order to 

 start them in the work, and by visits and by correspondence assistance 

 was rendered to growers in other parts of the State. Thus at Fort Val- 

 ley the Hale Georgia Orchard Co. sprayed three times its entire bearing 



