. Elementary principles of agriculture; a text book for the common schools . Fig. 93. The apple scab may be prevented by spraying. From Cornell University Junior Naturalist. should be before the buds swell, and repeated every few weeks thereafter until the crop is safe. 222. Grain Smuts. The smuts of oats and wheat (Fig. 87) may be prevented by treating the seed before planting. The spores become lodged on the grain on the hull or fine hairs. When the seeds are planted, the spores germinate with the seed. It is peculiar, but true, that this fungus can infect the plant only in the seedling stag
. Elementary principles of agriculture; a text book for the common schools . Fig. 93. The apple scab may be prevented by spraying. From Cornell University Junior Naturalist. should be before the buds swell, and repeated every few weeks thereafter until the crop is safe. 222. Grain Smuts. The smuts of oats and wheat (Fig. 87) may be prevented by treating the seed before planting. The spores become lodged on the grain on the hull or fine hairs. When the seeds are planted, the spores germinate with the seed. It is peculiar, but true, that this fungus can infect the plant only in the seedling stage. Therefore, it is plain, that to prevent the blasting of the oats by smut, we must destroy the smut spores on the seed before planting. This may be done without injury to the grain by treating the seeds with dilute
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