iv FUMIGATION METHODS 
CHAPTER VII 
CONSTRUCTION AND MANAGEMENT OF SHEET TENTS. 
Methods of making and handling sheet tents 
—Apparatus used in Eastern orchards—De- 
scription of California outfit. 
CHAPTER VIII 
EMORY FUMIGATOR WITH MODIFICATIONS . = ; 
Development of the Emory fumigator—Gen- 
eral description—Apparatus for handling—Cost 
of construction—The Miller type—Method of 
operating—The New York box fumigator. 
CHAPTER IX 
ESTIMATING GAS FOR ORCHARD WORK “ . 5 
Amount of chemicals—Cyanide necessary— 
Destroying black scale on citrus trees—Red, 
brown, and purple scale—Orchards on damp 
grounds — Eastern orchards — Comparative 
value of cyanide. 
CHAPTER X 
DAYLIGHT FUMIGATION AND CosT OF APPLICATION . 
Experiences in Eastern orchards — Expert 
opinion from California—Time of application— 
—Cost of orchard fumigation—Location of or- 
chard considered. 
CHAPTER XI 
EQUIPMENT FOR FUMIGATING NURSERY STOCK c 
Conditions considered—Construction and use 
of boxes—How to build a fumigatorium—Vari- 
ous types described. 
CHAPTER XII 
CONSTRUCTION OF VENTILATORS AND FLOORS ; 
Form used in Canada—Arrangement em- 
ployed in Ohio—Method in Delaware—A 
Western idea. 
CHAPTER XIII 
PracTicAL HINTS TO NURSERYMEN 6 j 
Estimating chemicals—Low-grade fcr Cost 
of nursery stock fumigation—Value of small 
room—Preparation of trees—Materials needed 
—Cellars and cars—Use of canvas over wagon 
—Points to remember. 
PAGE 
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76-83 
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I18-125 
