360 Agricultural Ji>urnal of Victoria. 



In the first place it is rather late, since we have seen that the 

 black spot may appear even before the Hower bnds have fully 

 expanded. 



In the next place there is such a lai'ge and extensive surface to 

 cover, that the chances are against its being thoroughly done^ and it 

 is the unsprayed spots which form breeding grounds for the fungus. 



General Summary. 



The results of the season's experiments, as far as they go, tend to 

 show that with a proper spraying ]>lant and a well prepared Bordeaux 

 mixture, the black spot can be thoroughly controlled. Additions 

 such as common salt or sal-anmioniac may slightly increase its 

 efficiency, but they are not necessary. 



The first appearance of the fungus, which, as before mentioned, 

 occurred on the apples as soon as the first fiowers began to expand, 

 serves to indicate that spraying must be done, in a spring favorable 

 to the black spot, certainly before full bloom, if it is desired to 

 secure the best results. 



With pears two sprayings are advised, one just as the first few 

 blossoms show ovit, and the second a week or ten days later. 



Spraying in full bloom may be done and the setting of the 

 fruit is not appreciably interefered with (at least in a dry spring), 

 but it is advantageous to begin earlier when there will be a smaller 

 area to spray, and consequently a smaller amount of material will 

 be required. 



As to spraying mixtures, the ordinary 6' -I' oi) formula, with or 

 without the addition of 1 lb. of salt per 5U gallons proved eminently 

 satisfactory. Where good fresh lime is not easily procurable the 

 Copper-soda might advantageoush^ be used. As may be seen on refer- 

 ence to the table giving the results at Doncaster, Copper soda 

 (6" 9" 50) gave 86 per cent, of absolutely clean fruit, which was better 

 than Bordeaux with nitrate of soda 77 per cent., Bordeaux with 

 nitrate of potash (saltpetre) 81 per cent., Bordeaux with Paris 

 Green 83 per cent., and Bordeaux with bichromate of potash 

 84 per cent. 



