210 DISEASES OF THE SWEET PEA 



oughly the blue stone in 25 gallons of 

 water. Use the best quality of lime and 

 slake it in a little hot water, being careful, 

 however, not to flood it while slaking, nor 

 to let it become too dry. When the slak- 

 ing is completed, add enough water to 

 make 25 gallons. Mix the lime water and 

 the blue stone solutions, using first one 

 part of lime water, then another part of 

 the blue stone. Strain and use at once. 

 It is essential that the lime shall not be 

 air slaked before it is used. 



The lime water and the blue stone solu- 

 tions will keep a long time if they are kept 

 in separate receptacles and well covered. 

 However, after they are once combined, it 

 must be used the same day. Bordeaux 

 mixture more than a day old is useless. 

 Where Bordeaux is used extensively, stock 

 solutions of lime and blue stone should be 

 prepared arid ready for use. 



