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Zippering (fruit disorder) on tomatoes. This disorder (abiotic disease) happens when the flower anther sticks to the developing fruit as it grows. Characteristic symptom is a thin brown longitudinal scar with transverse scars resembling a zipper. It extends down the fruit. There may be more than one scar on a fruit. An open hole may develop next to the scar.
Freezing and chilling injury in tomato and pepper plants. Although frost occurs, by definition, when the temperature drops to 0 Â° C at 1.5 meters above the ground, this may or may not result in freeze damage to crops.hilling injury occurs in tomato fruit if they experience temperatures of 10 Â° C for longer than 14 days or temperatures of 5 Â° C for more than 6 to 8 days. Tomato fruit exposed to a shorter duration of low temperatures may still be prone to storage problems, even if obvious injury did not occur in the field.