New YorK AGRICULTURAL EXPERIMENT STATION. 19 
The experiments are to be conducted during ten consecutive 
years in order to secure reliable averages. One experiment is 
located on the Station farm at Geneva; the other near River- 
head, Long Island. ‘The results for the first year are as follows: 
At Geneva, where late blight was severe and the tubers rotted 
some, three sprayings increased the yield by 9814 bushels per acre, 
and seven sprayings increased it 12314 bushels per acre. At 
Riverhead, where there was neither blight nor rot, three spray- 
ings increased the yield 27 2-3 bushels per acre, and seven spray- 
ings increased it 45 bushels per acre. 
Wrinkling of apple and quince leaves.—In June apple and 
quince foliage over the greater part of the State became much 
wrinkled, blistered and distorted. An investigation showed that 
the trouble was caused by severe late frosts which occurred on 
May 10th and 11th while the leaves were partially unfolded. Ice 
crystals formed between the lower epidermis and the green tissue 
of the leaf causing a separation. Thereafter the epidermis ceased 
to grow and expand, and being unable to spread out laterally 
took the form of an arch and thus brought about large interior 
cavities or blisters. Some of the blisters broke, others did not. 
The wrinkling seemed to interfere but little with the action of 
the ieaves and it is doubtful if any appreciable damage was done. 
Spray injury to apple foliage.—In July apple foliage in western 
New York became yellow and spotted and many leaves fell 
prematurely. Unquestionably this was chiefly due to spraying. 
The protracted cold wet weather made apple foliage unusually 
tender and susceptible to spray injury. In midsummer it seemed 
as if the orchards must be much injured, but at the close of the 
season sprayed orchards had the advantage in spite of the injury 
to the foliage. Scab was unusually destructive in unsprayed 
orchards. The spraying of apples should not be discontinued. 
Raspberry cane blight.— It has now been conclusively proven 
by inoculation experiments that the fungus, Coniothyriwm sp., so 
universally found on raspberry canes dying with cane blight is 
the cause of the disease. Infection occurs on the new canes in 
summer and autumn and, probably, also on the fruiting canes in 
early spring. The bluish-black areas which appear on the new 
