190 Southern Gardfners Practical Manual 



being the size of squirrel shot. The fourth spraying was 

 done three weeks after the third. Some vines were 

 sprayed only once, and others two, three, four and five 

 times. 



" The benefit of the spraying increased with the number 

 of applications made up to the fourth, but we could see 

 no advantage in the fifth application except in the late- 

 rii)ening varieties. The most marked benefit in spraying 

 varieties was with the Delaware. The unsprayed vines 

 lost all their leaves by the middle of June and all the 

 fruit dried upon the vines before ripening. 



"Not one bunch of Delaware grapes ripened on an un- 

 sprayed vine, while the sprayed vines on the next row 

 retained all their leaves and the fruit ripened beautifully. 



"The Bordeaux mixture used in spraying the vines was 

 made by the following formula: Six pounds caustic lime, 

 four pounds bluestone (copper sulphate), fifty gallons 

 water. 



"The bluestone is dissolved by putting it into a cloth 

 sack and hanging this in a barrel containing twenty-five 

 gallons of water. Slake the lime in another vessel, and 

 add twenty -five gallons of water to it. The lime and 

 blue-stone solutions are then mixed by pouring them 

 slowly together into another barrel, stirring well as the 

 two solutions are mixed. 



Hotv to ^/7ra?/. —"Thoroughness is the secret of suc- 

 cess in spraying. 



"In spraying the grapes, one man drives and does the 

 pumping, w^hile two men, one on each side of the wagon, 

 do the spraying. In this way two rows of grapes can be 

 sprayed at the same time. 



