Chapter Xxvi.—Watching and Spraying 227-236

Arsenical sprays 233 Bordeaux mixture, what it will do and how to make it 229, 230 Emulsions 235 Kerosene emulsions 234 Manufacture and use 234, 235 Need of watching 227 Paris green 232 Spraying as a remedy 228 Spraying mixture 228, 235 Uses 232 Value of spraying, the 235