. Fig. i66.—Rhizoglyphiis echinopus, the "bulb mite';' has destroyed the roots of a Hippeastrum bulb. removal of the outside loose scale leaves. This treatment is useful against fungi which follow the attack of the mite. 4. Fumigate with bisulphide of carbon. The bulbs to be treated should be placed in an air-tight receptacle, and a saucer, into which bisulphide of carbon has been poured, placed on the top of them. The bulbs should be left in the vapour for forty-eight hours. This treatment could be usefully extended to imported bulbs, which ought to be examined for the mite. The formula


. Fig. i66.—Rhizoglyphiis echinopus, the "bulb mite';' has destroyed the roots of a Hippeastrum bulb. removal of the outside loose scale leaves. This treatment is useful against fungi which follow the attack of the mite. 4. Fumigate with bisulphide of carbon. The bulbs to be treated should be placed in an air-tight receptacle, and a saucer, into which bisulphide of carbon has been poured, placed on the top of them. The bulbs should be left in the vapour for forty-eight hours. This treatment could be usefully extended to imported bulbs, which ought to be examined for the mite. The formula for fumigation on this larger scale is one pint of bisulphide of carbon to 1000 cubic feet of space.


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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910