Grow tomatoes in wire cages. Plants grown in wire cages provide good foliage protection. Also, control foliar diseases of tomatoes which defoliate the plants and expose the fruit to direct sunlight. Fruit Cracks Radial and concentric cracks develop at the stem end of the fruit. This growth results in cracking.
Fruit exposed to direct sun are most susceptible.
Mulch and water the plants during dry weather. Catfacing The blossom end of the fruit is puckered and scarred. Cloudy and cool weather at blooming time may cause the blossom to stick to the developing fruit, resulting in catfacing. Catfacing occurs most commonly on the large- fruited varieties. 2,4- D may produce similar symptoms.