Sunburn (physiological): The surface of a portion of the fruit is dried and slightly sunken, but firm (See 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 (See 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.