6 



REMEDIES. 



During the past two years experiments have been in progress 

 unde/" guidance of the Division of M3^cok)gy, Department of Agri- 

 culture, at Washington, the Experiment Stations of Wisconsin and 

 Michigan. Ti-ials were made at these places with certain chemical 

 preparations, applied in the form of a spray — in the same manner 

 that Paris green is used to check the ravages of the codlin moth. 

 Beneficial results were obtained by the use of several compounds, 

 but that known as "aramoniacal solution of copper carbonate " has 

 in nearly every instance given the most encouraging returns. Pro- 

 fessor Goff,* of the Wisconsin Agricultural Experiment Station, 

 obtained by the use of this fungicide, when applied to apple trees 

 of the Fameuse variety, the following results : — 



Per cent. 



in 



Fruit, 



First Quality. 



Pel" cent. 



in 



Second (Quality. 



Sprayed . . . 

 Unsprayed 



75 02 

 23-34 



23-35 

 53 89 



Per cent. 



in 



Third Quality. 



1 03 

 22-71 



Pi-ofes8or Goff used 1^ oz. carbonate cf copper, dissolved in 1 

 quart of ammonia, diluted with 22 gallons of water. 



Professor Taft,f of the Michigan Agricultural Experiment 

 Station, obtained results as follows, by the use of the same sub- 

 stance in the following proportions : — 3 oz. carbonate of copper 

 dissolved in 1 quart of ammonia and diluted Avith 22 gallons of 

 water : — 



Per cent. 



Free 

 from Spot. 



Sprayed . . . 

 Unsprayed . 



51-2 

 12-5 



Per cent. ! Per cent. 

 Slightly Six)tted. I Badly Spotted. 



48-(i 

 85-7 



0-6 

 1-8 



These results are very striking, and are worthy of careful 

 sideration, 



^Bulletin No. 23, Wisconsin Agricultural Experiment Station. 

 fBulletin 59, Michigan Agricultural Exijerinient Station. 



con- 



