328 Report of the Horticultukist of the 



Copper carbonate 1 oz., ammonia to dissolve it, 5 gals, water. 



Copper carbonate 3.2 oz., sodium carbonate 1.6 oz., ammonia 

 to dissolve them, 5 gals, water. 



For the remainder of the season these rows were all sprayed 

 with potassium sulphide 1 oz. to 2 gals, water, six applications 

 being given. 



summer treatment. 



This part of the work was divided into three series as was the 

 work at Trumansburg. In Series I the work was begun very 

 early, April 18; in Series II medium early, April 28; and in 

 Series III late. May 9. Later applications were made May 23, 

 June 5 and 15. 



The various solutions used were: 



Pottassiuni sulphide, 1 oz. to 2 gals, water. 



^Soda-Bordeaux, — ^soda (lye) 1 pound. 



Copper sulphate 3 pounds, 

 lime 5 oz. 

 Water 30 gals. 



^Copper carbonate 1 pound, sodium carbonate (sal soda) i 

 pound, enough strong ammonia to dissolve the copper carbonate, 

 50 gals, water. 



Ammoniacal solution of copper carbonate, — copper carbonate 

 5 oz., ammonia 3 pints, water 50 gals. 



Each of these solutions was applied to a separate row in Series 

 I, II, and in. 



The season was not favorable for the growth of mildew, a small 

 amount appearing on the fruit, but none on the new growth. A 

 very little of the disease was noticed Jime 15. The bushes made 



2Halsted, B. D. Nineteenth Report New Jersey Experiment Station, p. 336. 



3 '•■ Babbitt's Potash or Lye " was used. 



4 This remedy Avas recommended by Mr. David AUerton and Mr. J. A. Hep- 

 worth, of Marlboro, N. Y., who hare used it successfully against mildew on 

 American varieties, principally Houghton. There seems to be no reason from 

 a chemical standpoint why sodium carbonate should be used. 



