390 REPORT OF THE DEPARTMENT OF ENTOMOLOGY OF THE 























































































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COHEN.CO.CIN 
A SATISFACTORY KETTLE OUTFIT. 
Cut kindly loaned by the Philadelphia Farmers’ Supply Co. 
KETTLE OUTFITS. 
Small quantities of the lime-sulphur wash may be prepared in one 
or more large iron kettles or in a feed cooker. This arrangement 
is not as convenient or as economical as a steam cooking outfit; but 
it serves very well for the orchardist who does not wish to go to the 
expense of erecting a more costly plant. With a single kettle of 50 
gallons capacity, one can cook 400 to 600 gallons of wash per day 
or about enough to employ a roo-gallon hand-power spray rig. 
With a battery of kettles, the amount of wash cooked per day can 
be increased proportionately. 
Boiling the wash in a kettle over an open fire requires close at- 
tention to prevent the caking of the lime and the sulphur on the 
sides of the kettle and to supply the fire with fuel. It is more 
economical in fuel and labor to have the kettle set in an iron or 
brick base. There are on the market a number of styles of iron 
kettles with suitable fire box, as illustrated above, which can be 
purchased for about ten dollars from local hardware merchants. 
STEAM COOKING OUTFIT. 
While many fruit growers feel obliged to prepare the sulphur 
wash in iron kettles, experience has shown that this spray can be 
cooked more uniformly and cheaply, and with less inconvenience, 
by the use of steam. These facts are becoming well known among 
