. Diseases of truck crops / Ralph E. Smith. Plant diseases; Plant parasites; Vegetables; Agricultural pests. 30 California Agricultural Extension Service [CiR. 119 Blight, Late Blight.^—In this disease, the leaves and stems are blighted and have dead areas dotted with small, black, spore pustules (fig. 15). This disease, if not controlled, causes much loss to celery in California, both by stunting the growth of the plants in the field and by causing slimy rot (''slime") of the heads in shipment. It is caused either by Sey- toria apii or by a closely related fungus, S. apii-graveolentis. T
. Diseases of truck crops / Ralph E. Smith. Plant diseases; Plant parasites; Vegetables; Agricultural pests. 30 California Agricultural Extension Service [CiR. 119 Blight, Late Blight.^—In this disease, the leaves and stems are blighted and have dead areas dotted with small, black, spore pustules (fig. 15). This disease, if not controlled, causes much loss to celery in California, both by stunting the growth of the plants in the field and by causing slimy rot (''slime") of the heads in shipment. It is caused either by Sey- toria apii or by a closely related fungus, S. apii-graveolentis. There is a. I. 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 Smith, Ralph E. (Ralph Eliot), 1874-1953. Berkeley, Calif. : College of Agriculture, Univ. of Calif.
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Keywords: ., bookcentury1900, booksubjectagriculturalpests, booksubjectplantd
