New York AqricuLttTurRaAL EXPERIMENT STATION. 325 
during the season which seemed to favor a rapid growth of mil- 
dew. The disease was first noticed May 25. It was quite gen- 
erally distributed throughout the plantation but was most abun- 
dant on the untreated rows. The fruit was marketed ereen the 
latter part of June. 
Tests in 1899.— The weather was unfavorable to early growth 
so the first spraying was not made until April 15. Later spray- 
ings were made April 25, May 5, 15, 25, June 6 and 12. | 
The season was dry and the attack of mildew was compara- 
tively light, although the bushes made an excellent growth and 
set a fair crop of fruit. Mildew appeared early in June and was 
especially noticeable on the check rows and on the under side of 
bushes sprayed with Bordeaux mixture. The young growth was 
exempt from the disease. The fruit was picked the last of June. 
RESULTS. 
Table I shows the different strengths of the various fungicides 
used and the percentage of mildew for the three years in each 
series and each treatment in the series. 
TABLE I.— PERCENTAGE OF MILDEWED FRUIT FoR THREE SEASONS. 



Series I. Series II. Ser'es III. 
Spraying begun Spraying begun Epraying begun 
Fungicide. very early. medium early. late. 
Seven applica- Six applica- Five applica- 
tions. tions. - tions. 
HS 
1699. 1897. 1898, 1899, 
— — A — A. 
1:97. 1898, 1898. 1897. 1898. 


*Bordeaux mixture: 
byte tiieioraiula b. 2 4... 37.4 66.7 60.6 29.1 80.9 53.2 58. 90.5 63. 
Potassium sulphide: 
1 oz. to 2 gals water.. 66 29.3 5.5 12.3 42.7 35 11.5 37.9 15.1 
1) 6z, 10 3 gals. water... 5. .50.9 6.6 15.1 69.5 7.5 13. 66.3. 6.6 
Formalin: 
1 oz. to 1 gal. water... 48.8 59.9 8.9 78.3 80.9 11.2 56. 634 8.8 
1 0z. to 2 gals. water.. 59.1 84. 15. 84.7 91.9 14.9 71.4 96.8 37.5 
1 oz. to 4 gals. water.. 52.6 95.1 16.1 65. 86.7 16.2 70.4 89.1 41.9 
LS Ay ae eee bite 80.80 22.6 78:7) 98..° 28.5 78:7 95.7 30.6 
Lysol 
T0z. to | gal.-water... 245 74.2 6.6 
1 oz. to 2 gals. water.. 56.8 81.6 8 
1 oz. to 4 gals. water.. 37.1 65.1 10. 



* Last three treatments in each series in 1897, and last two treatments in 
each series in 1898 and 1899, potassium sulphide, 1 ounce to 2 gallons water. 
