37fi 



STATE BOARD OF AGUICULTURR. 



HOW TO MAKE BORDEAUX FOll SMALL ACREAGES. 



(1) Saw a 50-f/allon hand (vinegar or oil) and make tico 25-g'allon 



tuhs. 



(2) Pnt 2 pounds of Bluestonc (called also Blue Vitriol or copper sul- 



])liate) in a cloth sacic and hang over night in one-half a tub of 

 loater (12yo gallons). Bluestoue dissolves slowly. Hang it the 

 night before so that the sack is just imdcr the surface of the 

 water. 

 (;>) Jifake a lime paste hy slaking 2 pounds of fresh stone Unw in one- 

 half pail of neater. Stir this into the half tnb (I21/2 gallons) of 

 cold Avater. Hydratod lime (conios in sacks) will do bnt is not 

 so good. T^'^se 2\'-2 to o ponnds of iiydrated \i stone lime cannot bo 

 liad. Then follow directions of the pticture. This method makes 

 '25 gallons of spray. 



DIP EQUAL PART5FR0M 1 

 anp2 into 3 

 )TONE"^^jF^THENoTif,/^ 3T0N£ 



IVI&OR- ' 

 0U5LY 



Fine me5h screen 

 Qn4, tunnel to strain 

 ordeuux 



Use thi5 nll^turc at once in sprayer 



sprayer 



Fig. 9. Good Bordeaux is easy to make if these directions are followed. 



Note. — ^Where much Bordeaux is needed, use method of making a strong stock solution by dis- 

 solving 25 pounds of bluestone in 25 gallons of water. Make a milk of lime using 25 pounds stone 

 lime to 25 gallons of water. These stocks will keep. Then 1 gallon of stock carries 1 pound of blue- 

 stone (or 1 pound of lime). To make 100 gallons of spray, dilute 8 gallons of stock bluestone to 50 

 gallons, and 8 gallons stock lime to 50 gallons and pour together. Bordeaux may be tested to deter- 

 mine if enough lime is present by means of blue litmus paper. If blue litmus turns red add more 

 lime. Wilh good lime, using the amounls given, no test is needed. 



