THE GRAPE 223 
surface, it is a good sign; you are on the right 
track, so keep right on feeding and watering. 
The ventilators on the grapery should be kept 
closed at night, but should be opened in the morn- 
ing as soon as the sun strikes in and the tempera- 
ture starts to rise. When 75° is reached, begin to 
spray, lest a dry atmosphere burn the plants. 
During wet spells, when a house is apt to become 
damp and cold, maintain a good fire heat so that 
you can safely keep the ventilators open an 
inch or so. To prevent mildew, paint the pipes 
occasionally with flowers of sulphur mixed to a 
paste with water. 
When the grapes show colour, the conditions 
should be changed greatly, although gradually. 
Stop all spraying, and lower the temperature, but 
look out for mildew, and avoid sudden changes. 
The laterals can now be let run, as the growing 
season has about terminated; water should be 
withheld from the border as much as possible; 
no fire heat should be supplied except in dull, 
rainy weather; air should be more and more 
freely admitted, until, by the time the grapes are 
pretty well coloured, the ventilators are kept 
wide open all day and partially open at night. 
Let the air be dry and bracing at all times. 
Bees sometimes bother ripening grapes and 
