. Diseases and decays of Connecticut tobacco. Tobacco. Seedbed Diseases 103 Symptoms. In the earliest stages, the potassium-starved leaves are mottled with yellow near the margins and tips, resembling somewhat the early stages of ripening. Soon the surface of the leaf becomes rough and puckered, "hobbly". Meanwhile the centers of the mottled areas have died and the margins and tips of the leaves are speckled with numerous small white spots. As conditions grow worse, margins of the leaves turn downward, giving them a rim-bound appearance (Figure 6). In severe cases the dead portions m
. Diseases and decays of Connecticut tobacco. Tobacco. Seedbed Diseases 103 Symptoms. In the earliest stages, the potassium-starved leaves are mottled with yellow near the margins and tips, resembling somewhat the early stages of ripening. Soon the surface of the leaf becomes rough and puckered, "hobbly". Meanwhile the centers of the mottled areas have died and the margins and tips of the leaves are speckled with numerous small white spots. As conditions grow worse, margins of the leaves turn downward, giving them a rim-bound appearance (Figure 6). In severe cases the dead portions may coalesce and fall out or break and make the leaf appear ragged. On large leaves in the field, when potassium deficiency is not great, we have found the only symptoms to be a yellowing and sharp downward recurving of the leaf 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 Anderson, P. J. (Paul Johnson), b. 1884. [New Haven] : Connecticut Agricultural Experiment Station
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Keywords: ., bookcentury1900, bookpublishernewhavenconnec, booksubjecttobacco
