29 
A Homemade Cover lor Fumigation with Bisulfide ot Carbon. 
[From Insect Life , No. 4 , Vol. VII , p. 5.55.] 
Mi. IvI ward R. Taylor of Cleveland, Ohio, in a recent letter 
suggests the following method of making a cheap cover for use in 
fumigating low-growing plants w.tli Bisulfide of Carbon : 
Take a barrel hoop, cut it in two, and fasten the pieces at right 
angles to each other, by making a hole with a brad awl through both 
and inserting a screw eye with the eye 011 the convex side, to be 
used as a handle for lifting. Spring the hoops to make a cover of 
the size wanted, notch the ends, and tie a string around, as in mak- 
ing a kite ; or better use a stiff wire or a full hoop. Take manilla or 
even newspaper, cover all of one side with paste, and cover one 
section (one-fourth of the “dome”) with it, turning all the surplus 
paper inside. The other three sections are covered with paper in 
the same way, turning the s“rplus paper either inside or outside, as 
it would naturally go. A bundle of rags or cotton can be tied inside 
where the hoops cross to receive the charge of Bisulfide. Any of the 
chemic -1 left after treating one hill can be carried with little loss to 
the next. This will make a more substantial cover than one would 
at first think, even when made of newspapers, as when dry the 
paste will make them very stiff, especially when there are several 
thicknesses of paper. The covers will also be very resistant to the 
vapors of the Bisulfide of Carbon. 
The Treatment of Greenhouse Plants with Bisulfide of Carbon for the 
Destruction of Red Spider and Aphides. 
[ From Am. Florist.'] 
From the fact that some field experiments with Bisulfide of 
Carbon, have yielded encouraging results in the treatment of 
Cucurbs for the destruction of aphides, it appeared not improbable 
that the same agent might be employed for a similar purpose in the 
greenhouse. 
The Carbon was introduced through a stationary glass tube 
inserted in a hole in the top of the box, the lower end of this tube 
being provided with a sponge to retain the Carbon while it was 
evaporating, the upper end being closed with a cork stopper in order 
to retain the fumes. • 
With pelargoniums infested by aphides, one-half dram Carbon 
Bisulfide, for tlirt e hours, was found to be thoroughly effective in 
destroying the insects without injury to the plants. Chrysanthe- 
mums infested with the ordinary brown aphis so common on these 
plants, were treated with one dram for two hours; this destroyed 
the insects without affecting the plants, which were in this case 
tender shoots brought directly from the cellar in which they were 
being wintered, and would therefore probably be more susceptible 
to injury. Cinerarias were treated in precisely the same manner 
