PREPARED BORDEAUX MIXTURE. 



123 



made for not much if any more than 50 cents. The table which 

 follows shows the price per pound one could afford to pay for 

 the ready made goods, assuming that freshly prepared Bordeaux 

 mixture carrying 5 pounds lime, and 5 pounds of copper sul- 

 phate costs either 50 or 75 cents a barrel. This would of course, 

 if all the cost of materials and preparation is thrown upon the 

 copper, make a pound of copper sulphate in freshly prepared 

 Bordeaux mixture equal 10 cents in one instance and 15 cents 

 in the other. 



TABLE SHOWING VALUE PER POUND OF PREPARED BORDEAUX 

 MIXTURES COMPARED WITH FRESHLY PREPARED BORDEAUX 

 MIXTURE AT 50 AND AT 75 CENTS A BARREL- 



Brand. 



Value per pound 

 at 50 cents a barrel . 



Value per pound 

 at 75 cents a barrel. 





CENTS. 



CENTS. 



Bowker's Wet Bordeaux 



0.8 



1.2 



Bowker's Paste Boxal 



2.2* 



3.2* 



Blanchard's Lion Brand Bordeaux 



1.7 



2.6 



Swifts' Bordeaux Mixture 



7.7 



11.5 



*This preparation carries an insecticide which adds to its value. 



Bulletin 73 of this Station contains the following relative to 

 the use and cost of Bordeaux mixture. 



"The claim is justly made by the manufacturers that the pre- 

 pared Bordeaux mixtures are ready for use, since they only 

 need to be diluted with the requisite amount of water. If one 

 is using much Bordeaux mixture this is of little practical impor- 

 tance; for by using stock solutions freshly prepared Bordeaux 

 mixture (with allowance for time of preparing stock solution) 

 can be as quickly prepared as the ready made goods can be 

 stirred up and diluted." 



"The materials for making a barrel (50 gallons) of Bor- 

 deaux mixture costs between 40 and 50 cents. The pre- 

 pared goods of this strength are practically as good as the 

 freshly prepared. The small grower will probably find the 

 ready made goods enough more convenient to justify a 

 somewhat higher cost. The large grower should not with 

 present prices pay much more than at the rate of 50 cents for 



