. Diseases of truck crops and their control. Plants -- Diseases. >*^ Fig. 19. Ginseng Diseases. a. Damping off, Phytophthora mildew on leaf and root, d. Phytophthora mycelium, e. germination of conidia by means of zoospores,/, germination of conidia by means of germ tubes, g. sexual fertilization of the female oogonium by the male antheridium, h. germinating oospore by means of a germ tube, i. cross section of a root mfected with Acrostalagmus showing diseased condition of fibro-vascular bundles, k. fruiting stalks of Acrostalagmus and sclerotia of same, /. cross section of root to sh
. Diseases of truck crops and their control. Plants -- Diseases. >*^ Fig. 19. Ginseng Diseases. a. Damping off, Phytophthora mildew on leaf and root, d. Phytophthora mycelium, e. germination of conidia by means of zoospores,/, germination of conidia by means of germ tubes, g. sexual fertilization of the female oogonium by the male antheridium, h. germinating oospore by means of a germ tube, i. cross section of a root mfected with Acrostalagmus showing diseased condition of fibro-vascular bundles, k. fruiting stalks of Acrostalagmus and sclerotia of same, /. cross section of root to show presence of mycelium of Acrostalagmus in vascular bundles, m. papery leaf spot, n. Alternaria blight on leaf, o. Alternaria spore, p. black rot showing fruit- mg cup of Schrotinia panacis (d. e. f. g., and h. after Rosenbaum, the other figures after Whetzel and Rosenbaum).. 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 Taubenhaus, Jacob Joseph. New York, Dutton
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