. Fig. 181.—^ Ergot on Paspalum. After Beal. REDTOP (Agrostis) Black-stem-rust {Puccinia graminis agrostis Erks.). — The rust is identical with that upon wheat and oats, though infection does not readily pass from one host to the other. Smut {Ustilago striceformis (West.) Niessl). — This is the smut described under timothy. It has been known to affect 30 per cent of the plants, and to reduce the seed yield from 300 hundredweight to 70 hundredweight. Anthracnose. See rye. TALL OATGRASS Smut (Ustilago perennans Rostr.). — This smut closely resembles that of oats, though the flower parts are not
. Fig. 181.—^ Ergot on Paspalum. After Beal. REDTOP (Agrostis) Black-stem-rust {Puccinia graminis agrostis Erks.). — The rust is identical with that upon wheat and oats, though infection does not readily pass from one host to the other. Smut {Ustilago striceformis (West.) Niessl). — This is the smut described under timothy. It has been known to affect 30 per cent of the plants, and to reduce the seed yield from 300 hundredweight to 70 hundredweight. Anthracnose. See rye. TALL OATGRASS Smut (Ustilago perennans Rostr.). — This smut closely resembles that of oats, though the flower parts are not so completely destroyed as in oat smut. The disease is peren-
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Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyo, bookyear1921
