Flora Library
Search for outer bark host:www.caf.wvu.edu
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outer bark host:www.caf.wvu.edu
Listing 1 - 5 from 5 for outer bark
fire blight outer bark graft union boundary zone fruit infection inner bark growing season resting spores infected roots symptoms and signs disease symptoms fruit trees reddish brown black rot fungus plant body rotted area
What is Bark?
... "rhytidome", a term often considered synonymous with the term "outer bark" (Eames and MacDaniels 1947, Esau 1965). The living organs of the bark consist of the phloem and the living tissues of ... periderm, the phellogen and phelloderm. All living tissues have been collectively termed the "inner bark" (Eames and MacDaniels 1947). Borger (1973) provided an excellent discussion of the development and ...
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Fruit Pathology - Disease Diagnostic Key
... apparent. BLACK ROT (Botryosphaeria obtusa) 18a. Milky ooze coming from cankers on bark in early spring. Beneath bark, wood is slimy in appearance. Cankers may have smooth or rough margins. ... Later, black pycnidia may appear; at this stage the disease is indistinguishable from black rot. Outer bark of canker may slough and be papery, scaly, and orangish. WHITE ROT (Botryosphaeria dothidea) ...
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Suberized boundary zones...
... zones... Suberized Boundary Zones and the Chronology of Wound Response in Tree Bark A. R. Biggs, West Virginia University, University Experiment Farm. P. O. Box 609, Kearneysville, ... zones and the chronology of wound response in tree bark. Phytopathology 75:1191-1195. Wound response in mechanically injured outer bark of thirteen species of woody dicotyledonous angiosperms was assessed quantitatively ...
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Fruit Disease Focus - Phytophthora Root, Crown and Collar Rots - June, 1998
... the inner bark can be seen by removing several inches of soil around the base of declining trees and cutting away the outer bark layer ... the level of the soil line in Fig. 6). The inner bark of larger infected roots often shows a similar discoloration. These symptoms ... infected tissues in the rootstock portion of the tree. Winter-injured bark on tender stone fruit trees is usually confined to the above ...
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Black Rot and White Rot of Apples
... usually are associated with a wound in the bark. In the early stages, the bark is slightly sunken and reddish-brown in ... cankers, especially in those initiated by fire blight, in dead bark, and in mummified fruit. These overwintering structures provide an important ... organism. As the cankers progress, they exhibit a scaly, papery outer bark that is orange in color and often sloughs off (photo ...
www.caf.wvu.edu