THE POTATO-TUBER MOTH. 5 
be easily constructed to meet the purpose. In the case of this box 
the potatoes are best fumigated in bags, which can be piled one on top 
of another. If bins or other fumigators are used, the proportions 
will vary. They can be constructed longer or shorter and lower, 
according to the individual needs and desires of the potato grower. 
Fic. 4.—Fumigator used for stored products infested by insects. (Author’s illustration.) 
THE CONSTRUCTION OF A FUMIGATOR. 
A building, box, or room (see fig. 4) of about 100 to 200 bushels 
capacity suitable for the fumigation of a quantity of potatoes would 
contain about 500 cubic feet. A fumigator of this cubic capacity 
might be built 8 feet square by 8 feet in height. A good, and perhaps 
