Annual report of the North Carolina Agricultural Experiment Station . prevails generally throughout the mountain section of NorthCarolina; and that it is not limited to the mountains is shown by the factthat specimens have been sent to us from the coastal plain region with com-plaints of damage. (Fig. 46.) From the observations of Atkinson, Earle,Quaintance, and Sheldon, its presence is known in the mountains of WestVirginia and in Alabama, while the observations of Farlow and Burt indicateits much more widespread existence. Sta. Rpt., 1905-06, p. , Sylloge Fungorum, 16, p.
Annual report of the North Carolina Agricultural Experiment Station . prevails generally throughout the mountain section of NorthCarolina; and that it is not limited to the mountains is shown by the factthat specimens have been sent to us from the coastal plain region with com-plaints of damage. (Fig. 46.) From the observations of Atkinson, Earle,Quaintance, and Sheldon, its presence is known in the mountains of WestVirginia and in Alabama, while the observations of Farlow and Burt indicateits much more widespread existence. Sta. Rpt., 1905-06, p. , Sylloge Fungorum, 16, p. 197. 5Boletim do Instituto Agronomico do estado de Sao Paulo Em Campinas. 9, 1898. MarcoNumero 1, Sao Paulo, Brazil. HYPOCHXOSE OF POMACEOUS FRUITS. 83 Our own observation, agreeing with those of Noack in Brazil, show the dis-ease to occur with much greater destructiveness in humid localities, such asthe mountain valleys where the dew is excessive and morning fogs prevail,and it seems probable that this disease is of wide distribution where theseconditions Fig. 46.—Map of North Carolina; shaded counties are those in which disease occurs. PROPHYLAXIS. The fungus, wintering in a purely superficial manner upon the twigs anddepending to but a slight degree upon spores, will probably give way to thor-ough spring sprayings. The fact that the disease has not been noted uponsprayed orchards indicates the efficiency of such treatment. PARASITISM OF HYPOCHNTJS AND CORTICTUM. These genera, which are difficult to separate and which by many are consid-ered as identical, are in the main saprophytes, yet several cases of parasitismhave been attributed to them. Among the parasitic forms Frank6 in 1895 rec-ognized only two as belonging to the genus Hypochnus, viz., H. Solani P. & D.,noted on potatoes as early as 1891,7 and H. cucumeris Frank,8 which was notedas the cause of a cucumber disease in 1883 and later on lupine and filamentosus Pat. has since been described as gro
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