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Characteristics of Rust Diseases Affecting Small Grains
Disease |
Pustule Location |
Pustule Apperance |
Host Infected |
Host Specificity |
Stripe rust |
Leaf, sheath, spike |
Yellow orange, form stripes |
Wheat, barley |
Different strain on each grain |
Leaf rust |
Leaf, sheath |
Reddish orange, oval, small |
Wheat, barley |
One sp. on barley; separate sp. on wheat, rye, triticale |
Stem rust |
Stem, leaf sheath |
Brick red, large, elongated, tattered edges |
Wheat, barley, oats |
One f. sp. on wheat barley; separate f. sp. on oats |
Crown rust |
Leaf, sheath stem |
Reddish orange, oblong, smaller than stem rust |
Oats |
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