230 



Report of the Horticulturist of the 



Tabi-e I.— Treatments Appi.ikd to Raspberries for Prevention 

 OF Antiiracxose. 



were reached, maldng in all IS rows treated with copper sul- 

 phate, 15 rows treated with iron sulphate and 15 untreated or 

 check rows; of the last two rows one was sprayed with a solution 

 made up of ten parts of a saturated solution of copper sulphate 

 to one part of sulphuric acid, and the other with a 10 per cent 

 solution of sulphuric acid. After the first treatment all treated 

 rows were sprayed alike with Bordeaux mixture using one pound 

 of copper sulphate to make eleven gallons of the mixture. 



Experiments in 1894, 



Dates of spraying. — The first spraying was made April 18, just 

 as the leaf buds were beginning to swell. All of the different 

 mixtures were applied on the same day. That evening a heavy 

 rain set in which lasted three days. 



The second spraying was given May 1, when the leaves were 

 about one-fourth grown. At this time it was noticed that there 

 were numerous small dark spots on the canes in the rows that 

 had been sprayed with the sulphuric acid solution, which indi- 

 cated that the acid had been applied too strong. The heavy rain 

 that came on just as the work was finished undoubtedly washed 

 off a good deal of the acid and thus saved the plants from serious 

 injury. 



