Apple. Cause These diseases are caused by Apple scar skin viroid. Many infected cultivars do not express symptoms of disease. It has become a problem ... after long-term regular air storage. Lenticel ... The tissue appears water-soaked , glassy and may become hard. Later there may be ... In severe cases, a dark necrotic line will appear at the graft union flanked by spongy orange tissue. Cultural controlanbsp;...
Title | : | Pacific Northwest Plant Disease Management Handbook |
Author | : | Jay W. Pscheidt, Cynthia M. Ocamb |
Publisher | : | - 2009 |
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