THE CANADIAN HGRTICULTURlS'l 



Mr. A. Mexicans to Woodstock, Sinicoe, 

 Ingersoll, Gait and London. 



Mr. F. F. Reeves to Niagara Falls, St. 

 Catharines and Hamilton. 



Mr. John Atkin to Chatham. St. Thomas, 

 Windsor and Leamington. 



The president of the Guclph Agricultural 

 College will be requested to arrange for an 

 exhibit of pressed weeds at the Ontario Hor- 

 ticultural Exhibition, the weeds to be pro- 

 perly named and accompanied by informa- 



tion regarding methods for their extermi- 

 nation. 



Three hundred dollars was voted to the 

 Ontario Horticultural Exhibition as the as- 

 sociation's share of the expenses. Messrs. 

 Rush, Syme and Reeves were appointed a 

 committee to prepare a prize list. A second 

 committee, composed of Messrs. Emory, 

 Rush. Syme and Reeves was appointed to 

 represent the association on the executive 

 of the Ontario Horticultural Exhibition. 



BURGUNDY MIXTURE— SODA BORDEAUX 



W. T. MACOUX, C. E. F., OTTAWA. 



r 



HE use of washing soda instead of 

 lime in the preparation of a mixture 

 for potato rot has been advocated in Great 

 Britain and Ireland for about five years, and 

 the Burgundy mixture, as it is called, has 

 been used very largely there for this pur- 

 pose in preference to ordinary Bordeaux 

 mixture. When freshly prepared its ad- 

 hesive properties are greater than ordinary 

 Bordeaux ; it is not so liable to clog the 

 sprayer ; washing soda is more uniform in 

 character than lime ; it undergoes no change 

 in composition when kept ; in Canada, also, 

 it is sometimes difficult for farmers to get 

 fresh lime. It has been used very little in 

 this country as yet. 



A formula for the Burgundy mixture was 

 published in my report for 1902. It has 

 been tested at the Central Experimental 

 farm, but the results so far both with fruit 

 and potatoes have not been definite enough 

 to determine its comparative value with 

 Bordeaux mixture. We know of only one 

 fruit grower in Ontario who has been using 

 the Burgundy mixture for spraying apple 

 trees for the prevention of apple rot, namely. 

 Dr. Harkness, of Irena, and he has had ex- 

 cellent results, his Mcintosh red apples be- 

 ing spotless. It has an advantage in that 

 it does not discolor the fruit as much as the 

 ordinary Bordeaux. Apparently its chief 



defect is in the fact that it loses its adhesive 

 properties very rapidly after it has been 

 made a few hours, and hence should be ap- 

 plied when it is fresh, when it will adhere 

 better than Bordeaux. 



The following results, taken from Leaflet 

 14 of the Department of Agriculture for 

 Ireland, show that in the year 1900 the re- 

 sults from the use of Burgundy were better 

 than those from Bordeaux. In 1901 and 

 1902 the yields were also greater. 



RESULTS OF TRIALS, SHOWING YIELDS PER 

 STATUTE ACRE, I9OO, IN IRELAND. 



The following formula for the preparation 

 of Burgundy mixture appears in the spray- 

 ing calendar which was issued by Dr. 

 Fletcher and the writer last spring: 



BURGUNDY MIXTURE (SODA BORDEAUX) FOR 

 POTATO BLIGHT AND ROT. 



Copper sulphate (bluestone), 6 pounds. 

 \\'ashing soda (carbonate of soda), 7^ 

 pounds. 



Water ( i barrel) 40 gallons. 



