August 1, 1908 
————— 
THE AUSTRALIAN GARDENER. 
3I 
ALEX. DOWLE & SONS, 
Ss Foumndie St.,.hi delaide. 
All Storekeepers stock our Boots and Shoes. 
Insist on our D. & S. Monogram 
Stamp on your Boots. 
Garden and Farm Boots and Daintiest Footwear. 
Telephone No. 509. 
Summer TREATMENT, 
Nothinstanding the procedure above 
has been carried out, some living spores 
of the black spot fungus may survive in 
a vineyard to cause the infection of the 
early growth, or this may be effected 
through access to it of wind-borne spores 
derived from untreated vines elsewhere. 
Accordingly, the winter treatment should 
be followed up by a spring and summer 
one, ‘This consists in spraying the vines 
with Rordeaux mixture (copper sulphate 
or blustone 6lb, lime Slb, water 40 gal- 
lons) or soda Bordeanx mixture (in which 
soda in equal amount is substituted for 
lime). The preparaaion of Bordeaux 
mixture has been so often described that 
it not be repeated here bat directions 
forits manufacture can be furnished on 
application. It may, however. be poiuted 
out thet, as soon as the first signs of 
black spot are evinced by the apperance 
of dark corroded markings on the youug 
growth, its application should be com- 
menced. Moreover. since this frugicide 
only protects the parts to which it ad- 
heres, the application should be renewed 
every two or three weeks as additional 
growth is prodnced or removal throngh 
rain has been effected, It requires to 
be adminisrcred by means of a spray 
pump. with astonishing nozzle attached 
to the delivery tnbe, in the form of a fine 
mist. A liitle soapy water added to the 
mixture will promote both the spreading 
and adherence of the tiny droplets, 
Freshly prepared Bordeaux mixture al- 
ways produces better results than such as 
hag been held over from an earlier appli- 
cation and is accordinlgy “ stale.” 
E. W. ATTRIDGE: 
17 yesrs wlth W. EF. Gray & Co., 
126 Pirie Street 
(OPPOSITE MARVAL’S). 
Sheet Metal Worker, Plumber 
and Gasfitter. 
PUMPS. Spraying & Kalsomining Machines, 
ACETYENE GENERATORS, BATH HEATERS, 
GASOLENE MACHINES. ELECTRIC BELLS, 
BATHS and TANKS, 
Inasmuch as has been remarked, the 
summer treatment described involves the 
use of a spray pump, and this may not 
always be available. A dry application 
of sulphur or of sulphur and lime may be 
substituted for it, but with less eftica- 
cionsness. This is applied in the ordi- 
nary way for sulphuring grape vines for 
Odium of Pewdeyr Mildew. The sulphur 
should be finely ground (flower sulpur), 
or, preferably cf the kind known as 
flowers of sulphur, and in either case 
shonld be acid to the taste. The latter 
fourm is the more costly, but since it is 
the bulkier, weight for weight, its use 
involves little more monetary outlay than 
does that of ground sulphur. The lime 
should be well air-slaked to prevent any 
damage to the coming crop through its 
caustic action, although in the.case of 
flowers and very small berries, injury 
from it is scarcely to be anticipated, For 
the first application sulphur alone may be 
used, and to this, for subsequent ones, 
the lime may be sdded till it constitutes 
three-fifths or more of the bulk of the 
mixture, 
_-*Reference has been made to a special 
susceptibiiity to black spot disease mani- 
