28 BUSH-FRUITS 



ticeable effect. On June 15, 1892, spraying was begun 

 on Caroline, Cuthbert and Turner raspberries. At 

 that time the Caroline was well in bloom, while the 

 others were scarcely beginning to bloom. The spray- 

 ing was continued until July 1, two to four times 

 each day when the weather was bright and pleasant, 

 but omitted when there were rains to take its place. 

 Showers were frequent during this period, but were 

 well interspersed with bright weather and sunshine. 



The results were entirely negative, showing no ef- 

 fect whatever from the spraying. The fruits on this 

 part of the row were just as perfect and abundant, 

 and the plants appeared to suffer no more from fun- 

 gous diseases than those not sprayed. It is to be 

 noted, however, that the conditions were not the same 

 as those present in continuous cloudy weather, for 

 during much of this time the weather was bright and 

 insects were numerous, and continued working among 

 the blossoms regardless of their being wet, so that 

 opportunities for pollination were good. 



The test is of interest as showing that there need 

 be no fear of interfering with pollination by spraying 

 for insects or diseases, even if necessary to do it at 

 blossoming time. Of course, it should not be done 

 a-t that time, ordinarily, on account of the bees. 



FORCING RASPBERRIES AND BLACKBERRIES* 



When the ground began to freeze in the fall of 

 1892, several strong raspberry and blackberry plants 



*Bull. 57, Cornell Exp. Sta. 



