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two or three will be found sufficient. A notable saving of sulphur 
and in the cost of dusting is effected by mixing it in one of the 
summer sprays used for Black Spot or for Downy Mildew. 
The quantity of sulphur per acre vavies according to the state 
of fineness of the powder ; the sulphur distributor used ; the season, 
and the prevalence of the disease, from 15lbs. to 60lbs. of sulphur 
per acre. 
When oidium is severe, and in case of emergency, the following 
formula will be found to answer well :— 
Water fas sit oon ane -. 22 gall. 
Soft Soap... See oa ws ~« Hb, 
Liver of Sulphur... we oe wie Alby 
Reference is invited to the note regarding the wiialng of sulphur 
and hydrated lime under the heading ‘‘ The Red Mite.” 
This treatment is not meant to replace sulphur, but to check 
oidium on grapes. The liver of sulphur acts promptly by contact, 
Crown Gall or Broussin. 
whereas sulphur acts by emitting sulphur fumes, which may be 
checked by unfavourable weather. There are times when sulphur 
