ae 
' New York AGRICULTURAL EXPERIMENT STATION. 153 
cause the rotting of quince fruits had been previously demonstrated 
by experiments made at the Station some fifteen years earlier.1™* 
In 1887 quince bushes sprayed with a solution of potassium sul- 
phide became severely affected with fire blight, thereby showing the 
inefficiency of the treatment.1% 
In the third’®* and fourth’ reports of the Station the quince 
spot disease,’® which affects-both the fruit and leaves, is described 
and illustrated and the interesting statement made that no remedy 
for it is known. A few years later it was shown by the experiments 
of Thaxter at the Connecticut Station’® and by experiments on 
nursery stock at this Station!” that quince spot is very readily con- 
trolled by three to five applications of bordeaux mixture. 
A brief account of powdery mildew’™ of quince leaves is given 
in one of the early reports.!” 
RASPBERRY. 
Anthracnose! is a common fungus disease of raspberries and 
blackberries. Its most characteristic symptom is the formation of 
discolored spots and blotches on the canes. It is often exceedingly . 
destructive to black varieties of raspberries, but does not attack red 
varieties to any great extent. 
Experiments on the control of anthracnose were carried on during 
three successive seasons (1894—-1896).14 The principal object of 
the experiments was to determine the value of spraying as a pre- 
ventive of the disease. At first 1t was thought likely that a very 
early spraying with some strong fungicide would be helpful. Ac- 
cordingly, applications of copper sulphate, iron sulphate and sul- 
phuric acid were made before the foliage appeared and this followed 
by several applications of bordeaux mixture. Ultimately, it was 
learned that the early applications were unnecessary; moreover, 
™ Rpt.-33372 (C1884). 
© Rpt. '6:351 (1887). 
= ep t. 35371. 
77 Rpt. 4:275 (1885). 
*8 Entomosporium maculatum Lév. 
*® Conn. Sta. Rpts. 1890:99; 1891 :150-152. 
Rpt. r1:652-654 (1892). 
* Podosphera oxyacanthe (DC) De By. 
7 Rpt. 3:371 (1884). 
™ Gl@osporinm venetum Speg. 
™ Bul. 81:592-594 (1894) ; same in Rpt. 13:684-686. 
Bul. 124 (1897); same in Rpt. 16:231-244. 
