. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). -183- reddish tint. This discoloration is due to precisely the same causes as operate in producing a similar appearance in the Leaf- blight described in the preceding pages. The myceliiLm grows among the cells in the interior of the strawberry leaf, disorganizes and discolors their contents and absorbs their juices. Partl}^ sunk in the diseased tissue of the leaves, and arising from the juycelimn in the interior of these specimens, appeared small blackis
. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). -183- reddish tint. This discoloration is due to precisely the same causes as operate in producing a similar appearance in the Leaf- blight described in the preceding pages. The myceliiLm grows among the cells in the interior of the strawberry leaf, disorganizes and discolors their contents and absorbs their juices. Partl}^ sunk in the diseased tissue of the leaves, and arising from the juycelimn in the interior of these specimens, appeared small blackish fruit- ing organs, the perithecia, about |-to of a millimeter (tto ~ 2x0" of an inch) in diameter. The spores arising from the bottom of the perithecia were fusiform or cylindrical, (Fig. 10), two-celled, slightly constricted at the middle, either straight or usually with one or both cells curved, . mm. long by .004- .0056 mm. wide. The spores are larger than those in the Saccardoan species, but without expressing here a final opinion, there are reasons for thinking that the Fig. 10 —Snores of Ascochyia ^ c a i j ^ i , i FragaHce.—sacc. toruis oi Ascocliyta ou the strawberr)^ leaves, described by Saccardo, by Peck''' and in this note, belong to one species, A. Fragarice, Sacc. A considerable number of artificial cultures of the spores were made, but they did not germinate readil3^ and at that time no conidia were formed on the mycelium. We have not found it about Ithaca, and would solicit more material another season from correspondents, if it reappears on the strawberry. Hitherto As- cocliyta has never been reported as destructive of this host, so far as we are aware. As this is endophyllous, {i. e. lives within the leaf), it is neces- sary to .spray the leaves before the time of the plant's blooming, with a fungicide, in order to prevent any possible entrance of a germinating spore into the tissues. The spores are killed by the Bordeaux mixture ; but this m
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