. Bulletin. Agriculture -- New Hampshire. Dec., 1909.] SOME APPLE DISEASES. 125. Fig. 22.—Early stage of Leaf Spot. mer. (See Figs. 24 and 25.) Trees so robbed of their foliage from year to year must eventually become greatly impaired in their vigor and finally succumb to a premature destruction. The cause of the leaf spot has occasioned no little difficulty. A number of fungi have been found to be present in these spots as they occur in other parts of the country, and the work of Lewis^ has shown the same condition to hold in New Hampshire. The fungi which have been found to predominate in th
. Bulletin. Agriculture -- New Hampshire. Dec., 1909.] SOME APPLE DISEASES. 125. Fig. 22.—Early stage of Leaf Spot. mer. (See Figs. 24 and 25.) Trees so robbed of their foliage from year to year must eventually become greatly impaired in their vigor and finally succumb to a premature destruction. The cause of the leaf spot has occasioned no little difficulty. A number of fungi have been found to be present in these spots as they occur in other parts of the country, and the work of Lewis^ has shown the same condition to hold in New Hampshire. The fungi which have been found to predominate in the spots here are Sphceropsis, Malo- rum, Coniothyrium pirina, Cory- neum foliicolum, Alternaria sp. and one of the Tuhercularice. The work of Scott and Rorer- showed that the first of these is responsible for the majority of spots in the South and central West, and the isolation and inoculation experi. 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 New Hampshire Agricultural Experiment Station. [Hanover, N. H. ] : New Hampshire Agricultural Experiment Station
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