Insect and Fungous Enemies of the Grape. 69 
stone into the sprayer tank which has been filled three-fourths full of 
water, then pouring the lime stock solution through the strainer, 
adding enough water to fill the tank and keeping the agitator work- 
ing. The important thing in making good Bordeaux mixture is to 
stir or agitate the materials sufficiently as they are mixed to afford 
an opportunity for the proper combination of the lime and bluestone. 
BORDEAUX MIXING PLANTS. 
When using Bordeaux mixture in large quantities much time may 
be saved if arrangements are made for convenient handling of the 
Fig. 72.—Bordeaux mixing plant. 
stock solutions and the water needed. Figure 72 shows an arrange- 
ment for rapid preparation of Bordeaux mixture. Various modi- 
fications of this plan can easily be devised to suit the conditions and 
requirements in any particular case. The main feature is to have the 
lime, bluestone, and water arranged on platforms or in tanks high 
enough so that the solutions may be handled by gravitation. The 
water supply tank should be on the upper platform and connected by 
pipes to dilution barrels, which may be connected by 3 or 4 inch pipes 
with a flexible hose through which the Bordeaux mixture may be 
