782 Agricultural Journal of Victoria. 



7. Empty at once (it must not be allowed to dry) this wet blue 

 material into the 60 lbs. of air slaked lime and work it up so that it 

 will be well distributed. If the resulting mixture is too moist add 

 more air slaked lime. 



8. Rub the mixture through the coarse sieve while still someichat 

 damp, mix thoroughly and spread out to dry. 



9. When perfectly dry sift it through the^'?ie sieve, crushing all 

 lumps. All of this can be readily made to go through the sieve 

 except the small amount of sand which may be in 4 lbs. of quick- 

 lime. Mix so that the blue copper compound will be perfectly 

 evenly distributed throughout the whole mass. 



This stock powder will keep indefinitely. For use add 130 lbs. 

 of slaked lime (or an equal volume of flour) to the stock powder, and 

 the resulting mixture will be practically of the same strength as the 

 6"4'40 Bordeaux. Paris green may be added in the usual proportion 

 if required. It need hardly be said that a proper dust sprayer is 

 needed for making the application. 



Black Spot of the Vine. 



The following method of treatment is recommended by the 

 Vegetable Pathologist for black spot of the vine : — 



Winter Wash. 

 Sulphuric acid ... ... 1 lb. 



Water ... ... ... 10 lbs. (1 gallon) 



Add the acid to the water, using wooden vessels. This solution 

 should be brushed over the parts of the vine above ground before 

 any sign of growth is noticed. A mop of hog's bristles ur horsehair 

 is useful for applying this material, and care should be taken not to 

 splash it over one's clothes or hands. 



When acid is bought in quantity it is sometimes difliciilt to 

 ascertain the weight of small quantities. The ordinary reputed 

 quart wine or whisky bottle holds one-sixth of a gallon, that is three 

 pounds of acid, so a convenient measure can be made from one of 

 these bottles by marking it off into three equal parts each of which 

 will represent the pound of acid to add to 1 gallon of Avater. 



Spray for Use in the Spring. 

 When the buds are beginning to expand the vines should in 

 addition be sprayed with Bordeaux mixture, 6"4'40, if there is 

 reason to suspect serious trouble, or if last season the disease was 

 prevalent. 



Bluestone ... . . . • ... (3 lbs. 



Quicklime ... ... ... 4 lbs. 



Water ... ... ... ... 40 gallons 



Dissolve the bluestone in 20 gallons of water in a tub or cask, 

 and slake the lime gradually so as to obtain a fine smooth paste free 

 from lumps. Add 20 gallons water to the lime so as to make what 



