Bui. 879, U. S. Dept. of Agriculture. 
Plate II. 
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Mosaic Cucumber Plants. 
A , Mosaic cucumber plant infected while young, showing dwarfing and curling of the leaves and shorten- 
ing of the stems; Greeley, Colo., September, 1917. Photographed by W. W. Gilbert. B, Cucumber 
mosaic from inoculation with aphids from mosaic plants, the fruit symptoms being most marked; Big 
Rapids, Mich., 1915. Photographed by W. W. Gilbert. C, Mosaic plants in late stage, showing death 
of the basal leaves, whitening of the main stem, and the dwarfing and curling of the tip leaves. Photo- 
graphed by M. W. Gardner, September, 1916. 
I 
