. Southern field crops (exclusive of forage plants). Agriculture. OATS 23 Enemies 29. Weeds. — The same weeds are troublesome in oats as in wheat. Chief among these is cheat or chess. The use of clean seed, that has been carefully fanned and screened, is the best means of avoiding weed pests. In purchasing seed oats, care should be taken that they con- tain no seed of Johnson-grass. 30. Fungous diseases of oats. — Chief among diseases caused by fungi is rust, for which there is no treatment. The Red Rust-proof variety and its various strains are the most rust-resistant varieties, but even thes
. Southern field crops (exclusive of forage plants). Agriculture. OATS 23 Enemies 29. Weeds. — The same weeds are troublesome in oats as in wheat. Chief among these is cheat or chess. The use of clean seed, that has been carefully fanned and screened, is the best means of avoiding weed pests. In purchasing seed oats, care should be taken that they con- tain no seed of Johnson-grass. 30. Fungous diseases of oats. — Chief among diseases caused by fungi is rust, for which there is no treatment. The Red Rust-proof variety and its various strains are the most rust-resistant varieties, but even these are not entirely exempt. Rust is worse in damp weather. Oat smut (Fig. 8). —This disease usually reduces the yield of oats 10 to 20 per cent. Unlike rust, it is entirely under the control of the farmer. It appears as blackened heads in which no grains develop, but in the place of which are. Fig. 8. — Oats destroyed by 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 Duggar, J. F. (John Frederick), 1868-. New York, The Macmillan company
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