TABLE OF CONTENTS. 



Composition of proprietary mixtures in powder for making bonillies, or to 



spread with a bellows in a dry state :- 



"Poudre Coignet" 2I6 



"Sulfatine" -----...... 2I6 



" Kupferschwefelkalk " 216 



Bouillie bordolaise in a single powder ...... 2I6 



" Skavinsky's powder "----..... 2I6 



" Skavinsky's sulphur ''----..... 2I6 



" Kupfer Klebekalkmehl "---..... 2I6 



" Kupferzuckerkalkpulver" ---..... 2I6 



" Cuprocalcit " 216 



" Cupreina " - 216 



" Oceidine " 



216 



216-7 

 216 



Composition of powders to be diluted with water and used exclusively 

 bouillies -----..... 

 " Parasiticine " -----.... 



" Antimildioidium " - - 216 



" Poudre Crochepeyre " ------... 2I6 



" Gelatinous cupric hydrocarbonat'; " ---... 2I6 



"Bouillie d'Azur " ----..... 2I6 



" Poudre Eclair " - - - . 216 



'• Fostitebriihe " ------.... 2I6 



" Krystallazurin "-----..... 217 



" Kupferpreparat Gmund " - - 217 



"Kupfer soda" -----..... 217 



Use against root rot of vine ----..... 224 



Use against black rot of grapes -----... 224 



Use against beet diseases -----.-.. 225 



Use against worms and snails 225-6 



CHAPTER XIV. 



Copper Hydrate — Bouillie Boudelaise — Bouillie Bourguignonne. 



91. Copper Hydrate 227 



Preparation of normal bouillie bordelaise 227 



Specifications for raw material -----... 227 



1. Blue vitriol 227 



2. Milk of lime -----.... 227-8 



Properties of copper hydrate - 228 



Properties of bouillie bordelaise ----.... 228 



Tests to which it should respond - . 228 



Action of cupric hydrate on plants 229-32 



Stimulating action of infinitesimal doses of copper - - - 231-2 



Action on fresh-water algae . 232 



Action on fungi ----....... 232 



Action OL bouillie bordelaise ---...... 232-3 



Use of bouillie bordelaise ---..... 233-60 



History of bouillie bordelaise - - 233 



Practical spraying (illustrated) 234-7 



Use against mosses and lichens --...... 237 



Use against bacterian diseases of plants 237 



Use against parasitic myxomycetes ....... 237 



Use against parasitic fungi 237-8 



Use against potato disease 238 



Treating the tubers 238 



Treatment of the stems - - - 238 



Effect of treatment on weight and] starch-content of crop, and per- 

 centage of diseased potatoes ....... 239 



