. Chestnut blight. Chestnut blight; Chestnut. ^)MV«tv>v't^'t.^ Figure 4.—Fruitins bodies (blisters) of the chestnut blight SYMPTOMS OF THE DISEASE Yellow or brown leaves on a blight-infected branch, in striking contrast with the normal green foli- age, are usually the first noticed sign of the presence of chestnut blight. On a branch killed in early spring, the dead leaves are smaller than normal; on one killed later in the season, the dead leaves are full sized. The leaves and burs of a blighted branch usually remain at- tached during the winter. Dead chestnut branches with attach
. Chestnut blight. Chestnut blight; Chestnut. ^)MV«tv>v't^'t.^ Figure 4.—Fruitins bodies (blisters) of the chestnut blight SYMPTOMS OF THE DISEASE Yellow or brown leaves on a blight-infected branch, in striking contrast with the normal green foli- age, are usually the first noticed sign of the presence of chestnut blight. On a branch killed in early spring, the dead leaves are smaller than normal; on one killed later in the season, the dead leaves are full sized. The leaves and burs of a blighted branch usually remain at- tached during the winter. Dead chestnut branches with attached leaves do not, of course, always in- dicate chestnut blight. Wlien the chestnut blight fungus is resi)onsi- ble for the dying, a canker can be found on the dead branch or the trunk, usually below the lowest killed leaves. Water sprouts, or suckers, frequently develop below the cankers and indicate canker lo- cation {Hg. C). Yellowing, wilting, and stunting of leaves are symptoms of chestnut blight and also of Phytophthora root rot. This root rot is another fiuigus-caused disease that has been fatal to many native chestnuts and chinkapins in the South, especially at the lower elevations. Chestnut blight can be distinguished from Phytophthora root rot because blight-infected trees always have cankers and mycelial fans. Young cankers on smooth-barked,. 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 1906-1960
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Keywords: ., bookcolle, bookcollectionbiodiversity, booksubjectchestnutblight
