The Birmingham age-herald., 1918-05-09
BEST FUMIGATION TREATMENT

spreading heavy wrapping paper over and tying it close around the head of the barrel.
 Determine the number of cubic feet in the room to be fumigated by multiply ing it's length by it's breadth and this product by it's height Treat for the en- tire room and not merely for the mass of grain, as the gas will diffuse through the entire space. Carbon disulphid dos age is usually stated in number of pounds per 1000 cubic feet. The range would usu ally be from five pounds for an especially tight fumigation room, such as has been described above, to about 20 to 25 pounds for a moderately tight bin, such as might be made of plaster or single sheathed with common flooring or ceiling. Larger does are needed accordingly with small lots of corn. In actual practice determine how strong a dosage is called for by the condition of the room and the mass Of the grain, then use proportionately as many pounds as the number of cubic feet bears to 1000 For example: To treat room 6x15xi0 feet we would have 1900 cubic feet, and for a dosage rate of 25 pounds we would need 1.Sx25 or 45 pounds of carbon disulphid.
 For treating peas, etc, in barrels, an average dosage of about one-half tea cupful is sufficient if the top of the bar rel be tightly covered. This can be poured onto sacks etc, packed in to fill the top of the barrel. If peas are really thoroughly dried out the germination will not be affected even if the liquid is poured on them directly.
 AKING THE APPLICATION
 In making the application, level off the surface of the corn and prepare small holes about one foot deep by pulling out the ears at intervals of three to four feet apart each way Divide the liquid to be applied among these holes. Begin at the side farthest from and work back toward the door. Pour the liquid dl- rectly onto the corn-it will not hurt it either for food or for seed-and fill in the holes immediately with corn to conflne the fumes as much as possible. Close the door tightly and quickly paste paper strips over the cracks around it. Leave the room closed at least "A hours and no harm will be done if left indefinitely. Fllmigation is much more effective dur ing warm weather (75 degrees to So de- grees FD partly because of the more rapid evaporation and partly because in- sects are then more active and therefore more susceptible to it. Never attempt to use carbon dsulphid when the tempera- lure is below 60 degrees F. It is better to start the treatment at 10 to Il a. m. ra ther than at night both on account of having good light and also higher tenn peratures. A second and stronger treat ment should be given if. after week or two it should appear that the hrSt was not satisfa ctorily effective. Proper treat ment should destroy eggs and immature stapes in the seed as we'll as adults. Or dinarily one treatment in the fall and possibly another in March or April will be sufficient to protect the corn, peas etc. Carbon disulphid can be obtained most economically by purchasing in quantities of 100 pounds, or more di- rectlv from manufacturers. "fuma carbon disulphid is cheapest. The au- dress of manufacturers Will be gwen any one upon request.
 Prompt and thorough treatment is most profitable.