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Sunburn - (physiological): The surface of a portion of the fruit is dried and slightly sunken, but firm [Photo]. This is an injury that can result from heating when water or sprayed material on the fruit surface concentrates sunlight (the "lens effect").
Tipburn
- (physiological): The leaves are necrotic around the edges [Photo].
A moisture deficiency or salt accumulation can cause the damage. Extreme fluctuations
in soil moisture should be avoided. Plants may need a heavy watering to flush
salts out of the root zone. This may require an improvement in soil drainage.
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