. Figure 20. Mosaic on Broadleaf. Dark green puifed- out blisters between the veins of narrow distorted leaves. dust" which growers apply to this stage of calico. When cured, such leaves are worthless for wrappers or binders. Another symp- tom which frequently occurs when the leaves in the field are nearly mature is the appearance of numerous dead spots called "rust" by the grow- ers. The term is rather loosely used, some persons applying it to all leaf spots, others to only one type. Some distinguish between a "red dust" and a "white rust". Rust or other kin
. Figure 20. Mosaic on Broadleaf. Dark green puifed- out blisters between the veins of narrow distorted leaves. dust" which growers apply to this stage of calico. When cured, such leaves are worthless for wrappers or binders. Another symp- tom which frequently occurs when the leaves in the field are nearly mature is the appearance of numerous dead spots called "rust" by the grow- ers. The term is rather loosely used, some persons applying it to all leaf spots, others to only one type. Some distinguish between a "red dust" and a "white rust". Rust or other kinds of leaf spots, however, are by no means always pres- ent on plants with mosaic. Many that are severely affected never show any dead spots. Yet it is not unusual for the mottled leaves, especially just be_
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Keywords: ., bookcentury1900, bookpublishernewhavenconnec, booksubjecttobacco
