. Commercial violet culture. Violets. 170 DISEASES AND INSECT ENEMIES. night, under ordinary conditions existing in a green- house, fifty to sixty of these spores will settle on a space three inches in diameter. Every spore is able to produce a spot, and the only reason that they do. 52.—Spot disease artificially produced. not do so is probably because the conditions are un- favorable for development. It is evident from what has been said that the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appeara
. Commercial violet culture. Violets. 170 DISEASES AND INSECT ENEMIES. night, under ordinary conditions existing in a green- house, fifty to sixty of these spores will settle on a space three inches in diameter. Every spore is able to produce a spot, and the only reason that they do. 52.—Spot disease artificially produced. not do so is probably because the conditions are un- favorable for development. It is evident from what has been said that the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Galloway, B[everley] T[homas], 1863- [from old catalog]. New York, A. T. De La Mare ptg. & pub. co. , ltd.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectviolets, bookyear1903
