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Cocoa
Description:
Cocoa (Theobroma cacao)
Pale yellow areas are formed in the interveinal region near leaf margin, quickly becoming necrotic bu only fusing with each other after some time. Marginal necrosis progresses more rapidly between veins. Yellow zone on inner surface of invading necrotic zone.
Note that potassium, calcium and magnesium deficiencies are not easy to differentiate in the field.
Date:
11/14/2001
Sin Chee Tham/Photo
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