Stock Solutions. 371 



The operator must watch matters closely, and spra.y 

 when he needs to do so, or when he is in doubt. 

 Two spraj'ings are sufficient for the codlin-moth, and 

 three are generally sufficient for the apple -scab. 

 These two sprayings constitute the insurance which 

 lias been mentioned ; thereafter, the grower will be 

 jible to see more definitely what is needed. These 

 remarks illustrate the nature of the questions which 

 the fruit-grower must consider. 



At any time when the tree is in growth, Paris 

 green or London purple should be used with lime, 

 or, better, with Bordeaux mixture, to prevent injury 

 to the foliage. One pound of Paris green to two 

 hundred gallons of water is the most serviceable gen- 

 eral foi-mula for that material ; and to this a pound 

 or two of lime may be added. A pound of Paris 

 green (or London purple) may be added to two hun- 

 dred gallons of Bordeaux mixture. If the Paris green 

 is made into a paste with a little water, it mixes bet- 

 ter in the barrel. 



9. Prepare stock solutions for the Bordeaux mix- 

 lure* rather than f<> i<tke each batch in the quantities 



* NORMAL OK l.fi PER TENT BORDEAUX MIXTURE. 



Copper sulfnte (Idne vitriol) 6 pounds 



Stone Him- 4 pounds 



Water 40-50 gallons 



Dissolve the vitriol by putting it in a piece of coarse burlap and hanging 

 this in at least six gallons of water, so that the bottom of the bag just rests 

 in the water. Use a wooden pail or tub ; vitriol eats tin. Pour the vitriol 

 solution into the spraying barrel and fill the barrel about half full with water. 

 Slake the lime and dilute it to make 10 to 15 gallons of milk of lime. Pour 

 this into the barrel through a strainer and add water to make 40 to 50 gallons 

 of Bordeaux. The formula 4 pounds of vitriol and 4 pounds of lime to make 

 40 to 50 gallons of Bordeaux is apparently equally efficient. If Bordeaux is to 

 l>e used on peach foliage, apply it at one-half the ordinary strength. 



