. Manual of fruit diseases . Fruit. 408 MANUAL OF FRUIT DISEASES if formed at all, never reaches full maturity, but ripens pre- maturely or dries up. The petioles of the oldest leaves are attacked soon after the canes are affected. Purplish spots as described for the canes abo\'e are developed. The affected tissue enlarges along the petiole, finally reaching the leaf proper. On the leaf whitish, blister- like lesions appear. The leaves then become dis- torted, their edges rolling in toward the midrib. Spots on the leaf-blade are similar to those on the canes, although smaller ; they are one-tw
. Manual of fruit diseases . Fruit. 408 MANUAL OF FRUIT DISEASES if formed at all, never reaches full maturity, but ripens pre- maturely or dries up. The petioles of the oldest leaves are attacked soon after the canes are affected. Purplish spots as described for the canes abo\'e are developed. The affected tissue enlarges along the petiole, finally reaching the leaf proper. On the leaf whitish, blister- like lesions appear. The leaves then become dis- torted, their edges rolling in toward the midrib. Spots on the leaf-blade are similar to those on the canes, although smaller ; they are one-twenty-fifth of an inch or less in diam- eter. They are closely dis- tributed, but rarely coa- lesce. Frequently the diseased area, in which most of the tissue is dead, becomes separated from the surrounding healthy tissue and the leaf shows a shot-hole effect. Leaves on the laterals of new canes do not ordinarily become diseased. Anthracnose shows on the fruit. The upper drupels are more commonly attacked. Many fruits are affected while still green in color and sometimes before they are larger than a pea. A small brown. Fig. 119. — Anthracnose on canes of black 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 Hesler, L. R. (Lexemuel Ray); Whetzel, Herbert Hice, 1877-1944. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyo, bookyear1917
