DISEASES. 153 
or efficient drainage ; thorough and deep trenching or sub- 
soil plowing, and not over-close 2 so that the air 
may pass freely between and among the piants, in order 
e better to drive off all ial: atmospheric 
moisture, and also enable the plants to exhale the over- 
ylus fluids with which, at such times, they are surcharged 
For the same reason, where the vines are trained over 
arbors, or on trellises, the branci:es ought not to be too 
elose, or the summer growth to become crowded. This 
object is not to be gained, however, by plucking off the 
leaves as some persons very ignerant)y do, but by atten- 
tive disbudding of all those shocts that will not be actually 
= in the early part of the season, or so soon as it 
n be plainly seen which branches will produce the finest 
ae and by laying them in, at p uning time, sufficiently 
distant—eighteen inches is near enough. In the grapery 
we are not much troubled by th’s nuisance, except in 
damp, ill-ventilated, or badly-g glazel houses, which is an- 
other proof that the cause is an excess of mcisture, for it 
is a common practice, when the f.uit begins to color, to 
use very little or no water in any form, consequertly at 
the critical period the grapes are in a drier atmosphere 
t sorbing foliage is revel from inhaling any 
more moisture than is necessary to suppport health. 
the vines are planted and re fruit is found to be 
ate to the affection, it will be well to drain deeply 
between the rows in the fall, and when the ground is 
forked over to apply a good dressing of fresh powdered 
lime ; indeed a very confident opinion will not be much 
hazarded by stating, that a well drained calcareous soil, in 
an airy but not exposed situation, would be sure to give 
= nearly, if not quite free from rot. 
- wih the preceding dione, eyetieces a different t thing 
