. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. i8o DISEASES OF CULTIVATED PLANTS Distinguished by the soft—not carbonaceous, highly- coloured perithecia. Winter rot of potatoes.—Probably the most destructive disease attacking stored potatoes, where it is practically always present to some extent. The most usual symptom of the presence of the fungus is the gradual sinking and wrinkling of the surface of the tuber. These sunken places soon become sprinkled over with small, snow-white tufts of a conidia
. Diseases of cultivated plants and trees. Plant diseases; Plants -- Wounds and injuries; Plants, Protection of; Trees -- Diseases and pests. i8o DISEASES OF CULTIVATED PLANTS Distinguished by the soft—not carbonaceous, highly- coloured perithecia. Winter rot of potatoes.—Probably the most destructive disease attacking stored potatoes, where it is practically always present to some extent. The most usual symptom of the presence of the fungus is the gradual sinking and wrinkling of the surface of the tuber. These sunken places soon become sprinkled over with small, snow-white tufts of a conidial form of fruit. When the tissue becomes disintegrated by the mycelium, other organisms, bacteria, fungi, mites, Fig. 47. —AW/riit so/ani. The Moiunporium and /'usdriiiin stage; the most frc()ucnlly observed condition of 'winlcr-rot' in potatoes. quickly enter and assist in reducing the tuber to a semi- liquid, rotten, strong-smelling mass. The disease has usually been attributed to Fusarium solani (Pers.), but in reality the proper name of the fungus '\?, Neclria solani (Keinke and Berthold), of which the 1-usariutn is a conidial form. The reason why the Fusayiiim has been con- sidered as the primary and only cause of the disease is because it is the most conspicuous feature present during the state of disease most usually met with, and further, because the Fusarium condition is capable of continuing the disease alone, or without the intervention of the other phases. 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 Massee, George, 1850-1917. New York : Macmillan
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Keywords: ., bookpublishernewyorkmacmillan, booksubjectplantdis, bookyear1910
